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759ea82ee1
Fixed problem with char > 128 in QUOTE() function. (Bug #1868) Disable creation of symlinks if my_disable_symlink is set Fixed searching of TEXT with end space. (Bug #1651) Fixed caching bug in multi-table-update where same table was used twice. (Bug #1711) Fixed problem with UNIX_TIMESTAMP() for timestamps close to 0. (Bug #1998) Fixed timestamp.test include/my_base.h: Add HA_END_SPACE_KEY to mark keys that has VARCHAR/TEXT fields. myisam/mi_check.c: Delete not used variable myisam/mi_key.c: Fix autoincrement for signed columns (Bug #1366). Patch by Holyfoot myisam/mi_open.c: Bug fix for future (doesn't affect current code) myisam/mi_search.c: Ignore end space for VARCHAR/TEXT columns mysql-test/r/auto_increment.result: Test auto_increment with signed numbers mysql-test/r/binary.result: Update results (old result was wrong) mysql-test/r/func_str.result: Added test of QUOTE() mysql-test/r/func_time.result: Add test of unix_timestamp() mysql-test/r/have_met_timezone.require: Fixed test mysql-test/r/innodb.result: Add test for InnoDB behaviour with TRUNCATE mysql-test/r/multi_update.result: Test of multi-update bug mysql-test/r/symlink.result: Test of ALTER TABLE and symlinks mysql-test/r/timezone.result: Test of from_unixtime() mysql-test/r/truncate.result: Test of truncate and auto_increment mysql-test/r/type_blob.result: Test of key search on TEXT/VARCHAR column with end space mysql-test/t/auto_increment.test: Test auto_increment with signed numbers mysql-test/t/func_str.test: Added test of QUOTE() mysql-test/t/func_time.test: Add test of unix_timestamp() mysql-test/t/innodb.test: Add test for InnoDB behaviour with TRUNCATE mysql-test/t/multi_update.test: Test of multi-update bug mysql-test/t/symlink.test: Test of ALTER TABLE and symlinks mysql-test/t/timezone.test: Test of from_unixtime() mysql-test/t/truncate.test: Test of truncate and auto_increment mysql-test/t/type_blob.test: Test of key search on TEXT/VARCHAR column with end space mysys/my_symlink2.c: Disable creation of symlinks if my_disable_symlink is set sql/field.h: Indentation cleanup sql/ha_innodb.cc: HA_PART_KEY -> HA_PART_KEY_SEG sql/item_strfunc.cc: Fixed problem with char > 128 in QUOTE() function. (Bug #1868) sql/mysql_priv.h: Make check_dup() external sql/opt_range.cc: Fixed searching of TEXT with end space. (Bug #1651) sql/records.cc: Fixed caching bug in multi-table-update where same table was used twice. (Bug #1711) sql/sql_acl.cc: Reset ip and ip_mask if hostname is NULL sql/sql_parse.cc: Make check_dup() global sql/sql_select.cc: Fixed searching of TEXT with end space. (Bug #1651) sql/sql_table.cc: Fixed searching of TEXT with end space. (Bug #1651) sql/sql_update.cc: Fixed caching bug in multi-table-update where same table was used twice. (Bug #1711) sql/table.cc: Fixed searching of TEXT with end space. (Bug #1651) sql/table.h: Fixed caching bug in multi-table-update where same table was used twice. (Bug #1711) sql/time.cc: Fixed problem with UNIX_TIMESTAMP() for timestamps close to 0. (Bug #1998)
442 lines
21 KiB
Text
442 lines
21 KiB
Text
drop table if exists t1,t2,t3;
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select from_days(to_days("960101")),to_days(960201)-to_days("19960101"),to_days(date_add(curdate(), interval 1 day))-to_days(curdate()),weekday("1997-11-29");
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from_days(to_days("960101")) to_days(960201)-to_days("19960101") to_days(date_add(curdate(), interval 1 day))-to_days(curdate()) weekday("1997-11-29")
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1996-01-01 31 1 5
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select period_add("9602",-12),period_diff(199505,"9404") ;
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period_add("9602",-12) period_diff(199505,"9404")
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199502 13
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select now()-now(),weekday(curdate())-weekday(now()),unix_timestamp()-unix_timestamp(now());
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now()-now() weekday(curdate())-weekday(now()) unix_timestamp()-unix_timestamp(now())
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0 0 0
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select from_unixtime(unix_timestamp("1994-03-02 10:11:12")),from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s"),from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0;
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from_unixtime(unix_timestamp("1994-03-02 10:11:12")) from_unixtime(unix_timestamp("1994-03-02 10:11:12"),"%Y-%m-%d %h:%i:%s") from_unixtime(unix_timestamp("1994-03-02 10:11:12"))+0
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1994-03-02 10:11:12 1994-03-02 10:11:12 19940302101112
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select sec_to_time(9001),sec_to_time(9001)+0,time_to_sec("15:12:22"),
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sec_to_time(time_to_sec("0:30:47")/6.21);
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sec_to_time(9001) sec_to_time(9001)+0 time_to_sec("15:12:22") sec_to_time(time_to_sec("0:30:47")/6.21)
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02:30:01 23001 54742 00:04:57
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select sec_to_time(time_to_sec('-838:59:59'));
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sec_to_time(time_to_sec('-838:59:59'))
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-838:59:59
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select now()-curdate()*1000000-curtime();
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now()-curdate()*1000000-curtime()
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0
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select strcmp(current_timestamp(),concat(current_date()," ",current_time()));
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strcmp(current_timestamp(),concat(current_date()," ",current_time()))
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0
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select strcmp(localtime(),concat(current_date()," ",current_time()));
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strcmp(localtime(),concat(current_date()," ",current_time()))
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0
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select strcmp(localtimestamp(),concat(current_date()," ",current_time()));
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strcmp(localtimestamp(),concat(current_date()," ",current_time()))
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0
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select date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w");
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date_format("1997-01-02 03:04:05", "%M %W %D %Y %y %m %d %h %i %s %w")
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January Thursday 2nd 1997 97 01 02 03 04 05 4
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select date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"));
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date_format("1997-01-02", concat("%M %W %D ","%Y %y %m %d %h %i %s %w"))
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January Thursday 2nd 1997 97 01 02 12 00 00 4
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select dayofmonth("1997-01-02"),dayofmonth(19970323);
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dayofmonth("1997-01-02") dayofmonth(19970323)
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2 23
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select month("1997-01-02"),year("98-02-03"),dayofyear("1997-12-31");
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month("1997-01-02") year("98-02-03") dayofyear("1997-12-31")
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1 1998 365
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select month("2001-02-00"),year("2001-00-00");
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month("2001-02-00") year("2001-00-00")
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2 2001
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select DAYOFYEAR("1997-03-03"), WEEK("1998-03-03"), QUARTER(980303);
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DAYOFYEAR("1997-03-03") WEEK("1998-03-03") QUARTER(980303)
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62 9 1
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select HOUR("1997-03-03 23:03:22"), MINUTE("23:03:22"), SECOND(230322);
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HOUR("1997-03-03 23:03:22") MINUTE("23:03:22") SECOND(230322)
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23 3 22
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select week(19980101),week(19970101),week(19980101,1),week(19970101,1);
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week(19980101) week(19970101) week(19980101,1) week(19970101,1)
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0 0 1 1
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select week(19981231),week(19971231),week(19981231,1),week(19971231,1);
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week(19981231) week(19971231) week(19981231,1) week(19971231,1)
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52 52 53 53
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select week(19950101),week(19950101,1);
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week(19950101) week(19950101,1)
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1 0
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select yearweek('1981-12-31',1),yearweek('1982-01-01',1),yearweek('1982-12-31',1),yearweek('1983-01-01',1);
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yearweek('1981-12-31',1) yearweek('1982-01-01',1) yearweek('1982-12-31',1) yearweek('1983-01-01',1)
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198153 198153 198252 198252
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select yearweek('1987-01-01',1),yearweek('1987-01-01');
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yearweek('1987-01-01',1) yearweek('1987-01-01')
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198701 198652
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select week("2000-01-01",0) as '2000', week("2001-01-01",0) as '2001', week("2002-01-01",0) as '2002',week("2003-01-01",0) as '2003', week("2004-01-01",0) as '2004', week("2005-01-01",0) as '2005', week("2006-01-01",0) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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0 0 0 0 0 0 1
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select week("2000-01-06",0) as '2000', week("2001-01-06",0) as '2001', week("2002-01-06",0) as '2002',week("2003-01-06",0) as '2003', week("2004-01-06",0) as '2004', week("2005-01-06",0) as '2005', week("2006-01-06",0) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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1 0 1 1 1 1 1
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select week("2000-01-01",1) as '2000', week("2001-01-01",1) as '2001', week("2002-01-01",1) as '2002',week("2003-01-01",1) as '2003', week("2004-01-01",1) as '2004', week("2005-01-01",1) as '2005', week("2006-01-01",1) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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0 1 1 1 1 0 0
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select week("2000-01-06",1) as '2000', week("2001-01-06",1) as '2001', week("2002-01-06",1) as '2002',week("2003-01-06",1) as '2003', week("2004-01-06",1) as '2004', week("2005-01-06",1) as '2005', week("2006-01-06",1) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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1 1 1 2 2 1 1
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select yearweek("2000-01-01",0) as '2000', yearweek("2001-01-01",0) as '2001', yearweek("2002-01-01",0) as '2002',yearweek("2003-01-01",0) as '2003', yearweek("2004-01-01",0) as '2004', yearweek("2005-01-01",0) as '2005', yearweek("2006-01-01",0) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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199952 200053 200152 200252 200352 200452 200601
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select yearweek("2000-01-06",0) as '2000', yearweek("2001-01-06",0) as '2001', yearweek("2002-01-06",0) as '2002',yearweek("2003-01-06",0) as '2003', yearweek("2004-01-06",0) as '2004', yearweek("2005-01-06",0) as '2005', yearweek("2006-01-06",0) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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200001 200053 200201 200301 200401 200501 200601
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select yearweek("2000-01-01",1) as '2000', yearweek("2001-01-01",1) as '2001', yearweek("2002-01-01",1) as '2002',yearweek("2003-01-01",1) as '2003', yearweek("2004-01-01",1) as '2004', yearweek("2005-01-01",1) as '2005', yearweek("2006-01-01",1) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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199952 200101 200201 200301 200401 200453 200552
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select yearweek("2000-01-06",1) as '2000', yearweek("2001-01-06",1) as '2001', yearweek("2002-01-06",1) as '2002',yearweek("2003-01-06",1) as '2003', yearweek("2004-01-06",1) as '2004', yearweek("2005-01-06",1) as '2005', yearweek("2006-01-06",1) as '2006';
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2000 2001 2002 2003 2004 2005 2006
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200001 200101 200201 200302 200402 200501 200601
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select week(19981231,2), week(19981231,3), week(20000101,2), week(20000101,3);
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week(19981231,2) week(19981231,3) week(20000101,2) week(20000101,3)
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52 53 52 52
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select week(20001231,2),week(20001231,3);
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week(20001231,2) week(20001231,3)
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53 52
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select week(19981231,0) as '0', week(19981231,1) as '1', week(19981231,2) as '2', week(19981231,3) as '3', week(19981231,4) as '4', week(19981231,5) as '5', week(19981231,6) as '6', week(19981231,7) as '7';
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0 1 2 3 4 5 6 7
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52 53 52 53 52 52 52 52
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select week(20000101,0) as '0', week(20000101,1) as '1', week(20000101,2) as '2', week(20000101,3) as '3', week(20000101,4) as '4', week(20000101,5) as '5', week(20000101,6) as '6', week(20000101,7) as '7';
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0 1 2 3 4 5 6 7
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0 0 52 52 0 0 52 52
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select week(20000106,0) as '0', week(20000106,1) as '1', week(20000106,2) as '2', week(20000106,3) as '3', week(20000106,4) as '4', week(20000106,5) as '5', week(20000106,6) as '6', week(20000106,7) as '7';
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0 1 2 3 4 5 6 7
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1 1 1 1 1 1 1 1
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select week(20001231,0) as '0', week(20001231,1) as '1', week(20001231,2) as '2', week(20001231,3) as '3', week(20001231,4) as '4', week(20001231,5) as '5', week(20001231,6) as '6', week(20001231,7) as '7';
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0 1 2 3 4 5 6 7
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53 52 53 52 53 52 1 52
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select week(20010101,0) as '0', week(20010101,1) as '1', week(20010101,2) as '2', week(20010101,3) as '3', week(20010101,4) as '4', week(20010101,5) as '5', week(20010101,6) as '6', week(20010101,7) as '7';
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0 1 2 3 4 5 6 7
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0 1 53 1 1 1 1 1
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select yearweek(20001231,0), yearweek(20001231,1), yearweek(20001231,2), yearweek(20001231,3), yearweek(20001231,4), yearweek(20001231,5), yearweek(20001231,6), yearweek(20001231,7);
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yearweek(20001231,0) yearweek(20001231,1) yearweek(20001231,2) yearweek(20001231,3) yearweek(20001231,4) yearweek(20001231,5) yearweek(20001231,6) yearweek(20001231,7)
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200053 200052 200053 200052 200101 200052 200101 200052
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set default_week_format = 6;
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select week(20001231), week(20001231,6);
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week(20001231) week(20001231,6)
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1 1
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set default_week_format = 0;
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set default_week_format = 2;
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select week(20001231),week(20001231,2),week(20001231,0);
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week(20001231) week(20001231,2) week(20001231,0)
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53 53 53
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set default_week_format = 0;
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select date_format('1998-12-31','%x-%v'),date_format('1999-01-01','%x-%v');
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date_format('1998-12-31','%x-%v') date_format('1999-01-01','%x-%v')
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1998-53 1998-53
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select date_format('1999-12-31','%x-%v'),date_format('2000-01-01','%x-%v');
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date_format('1999-12-31','%x-%v') date_format('2000-01-01','%x-%v')
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1999-52 1999-52
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select dayname("1962-03-03"),dayname("1962-03-03")+0;
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dayname("1962-03-03") dayname("1962-03-03")+0
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Saturday 5
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select monthname("1972-03-04"),monthname("1972-03-04")+0;
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monthname("1972-03-04") monthname("1972-03-04")+0
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March 3
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select time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
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time_format(19980131000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
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00|12|0|12|00|AM|12:00:00 AM|00|00:00:00
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select time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
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time_format(19980131010203,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
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01|01|1|1|02|AM|01:02:03 AM|03|01:02:03
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select time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
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time_format(19980131131415,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
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13|01|13|1|14|PM|01:14:15 PM|15|13:14:15
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select time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T');
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time_format(19980131010015,'%H|%I|%k|%l|%i|%p|%r|%S|%T')
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01|01|1|1|00|AM|01:00:15 AM|15|01:00:15
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select date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
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date_format(concat('19980131',131415),'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
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13|01|13|1|14|PM|01:14:15 PM|15|13:14:15| January|Saturday|31st|1998|98|Sat|Jan|031|01|31|01|15|6
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select date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w');
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date_format(19980021000000,'%H|%I|%k|%l|%i|%p|%r|%S|%T| %M|%W|%D|%Y|%y|%a|%b|%j|%m|%d|%h|%s|%w')
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NULL
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select date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND);
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date_add("1997-12-31 23:59:59",INTERVAL 1 SECOND)
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1998-01-01 00:00:00
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select date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE);
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date_add("1997-12-31 23:59:59",INTERVAL 1 MINUTE)
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1998-01-01 00:00:59
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select date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR);
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date_add("1997-12-31 23:59:59",INTERVAL 1 HOUR)
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1998-01-01 00:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL 1 DAY);
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date_add("1997-12-31 23:59:59",INTERVAL 1 DAY)
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1998-01-01 23:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH);
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date_add("1997-12-31 23:59:59",INTERVAL 1 MONTH)
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1998-01-31 23:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR);
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date_add("1997-12-31 23:59:59",INTERVAL 1 YEAR)
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1998-12-31 23:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND);
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date_add("1997-12-31 23:59:59",INTERVAL "1:1" MINUTE_SECOND)
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1998-01-01 00:01:00
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select date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE);
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date_add("1997-12-31 23:59:59",INTERVAL "1:1" HOUR_MINUTE)
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1998-01-01 01:00:59
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select date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR);
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date_add("1997-12-31 23:59:59",INTERVAL "1:1" DAY_HOUR)
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1998-01-02 00:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH);
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date_add("1997-12-31 23:59:59",INTERVAL "1 1" YEAR_MONTH)
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1999-01-31 23:59:59
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select date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND);
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date_add("1997-12-31 23:59:59",INTERVAL "1:1:1" HOUR_SECOND)
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1998-01-01 01:01:00
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select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE);
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date_add("1997-12-31 23:59:59",INTERVAL "1 1:1" DAY_MINUTE)
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1998-01-02 01:00:59
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select date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND);
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date_add("1997-12-31 23:59:59",INTERVAL "1 1:1:1" DAY_SECOND)
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1998-01-02 01:01:00
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 SECOND)
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1997-12-31 23:59:59
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 MINUTE)
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1997-12-31 23:59:00
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 HOUR)
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1997-12-31 23:00:00
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 DAY)
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1997-12-31 00:00:00
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 MONTH)
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1997-12-01 00:00:00
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select date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR);
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date_sub("1998-01-01 00:00:00",INTERVAL 1 YEAR)
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1997-01-01 00:00:00
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" MINUTE_SECOND)
|
|
1997-12-31 23:58:59
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" HOUR_MINUTE)
|
|
1997-12-31 22:59:00
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1:1" DAY_HOUR)
|
|
1997-12-30 23:00:00
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1 1" YEAR_MONTH)
|
|
1996-12-01 00:00:00
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1:1:1" HOUR_SECOND)
|
|
1997-12-31 22:58:59
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1" DAY_MINUTE)
|
|
1997-12-30 22:59:00
|
|
select date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND);
|
|
date_sub("1998-01-01 00:00:00",INTERVAL "1 1:1:1" DAY_SECOND)
|
|
1997-12-30 22:58:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL 100000 SECOND)
|
|
1998-01-02 03:46:39
|
|
select date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE);
|
|
date_add("1997-12-31 23:59:59",INTERVAL -100000 MINUTE)
|
|
1997-10-23 13:19:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR);
|
|
date_add("1997-12-31 23:59:59",INTERVAL 100000 HOUR)
|
|
2009-05-29 15:59:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY);
|
|
date_add("1997-12-31 23:59:59",INTERVAL -100000 DAY)
|
|
1724-03-17 23:59:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH);
|
|
date_add("1997-12-31 23:59:59",INTERVAL 100000 MONTH)
|
|
NULL
|
|
select date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR);
|
|
date_add("1997-12-31 23:59:59",INTERVAL -100000 YEAR)
|
|
NULL
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" MINUTE_SECOND)
|
|
1998-01-07 22:40:00
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "-10000:1" HOUR_MINUTE)
|
|
1996-11-10 07:58:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "10000:1" DAY_HOUR)
|
|
2025-05-19 00:59:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "-100 1" YEAR_MONTH)
|
|
1897-11-30 23:59:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "10000:99:99" HOUR_SECOND)
|
|
1999-02-21 17:40:38
|
|
select date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE);
|
|
date_add("1997-12-31 23:59:59",INTERVAL " -10000 99:99" DAY_MINUTE)
|
|
1970-08-11 19:20:59
|
|
select date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL "10000 99:99:99" DAY_SECOND)
|
|
2025-05-23 04:40:38
|
|
select "1997-12-31 23:59:59" + INTERVAL 1 SECOND;
|
|
"1997-12-31 23:59:59" + INTERVAL 1 SECOND
|
|
1998-01-01 00:00:00
|
|
select INTERVAL 1 DAY + "1997-12-31";
|
|
INTERVAL 1 DAY + "1997-12-31"
|
|
1998-01-01
|
|
select "1998-01-01 00:00:00" - INTERVAL 1 SECOND;
|
|
"1998-01-01 00:00:00" - INTERVAL 1 SECOND
|
|
1997-12-31 23:59:59
|
|
select date_sub("1998-01-02",INTERVAL 31 DAY);
|
|
date_sub("1998-01-02",INTERVAL 31 DAY)
|
|
1997-12-02
|
|
select date_add("1997-12-31",INTERVAL 1 SECOND);
|
|
date_add("1997-12-31",INTERVAL 1 SECOND)
|
|
1997-12-31 00:00:01
|
|
select date_add("1997-12-31",INTERVAL 1 DAY);
|
|
date_add("1997-12-31",INTERVAL 1 DAY)
|
|
1998-01-01
|
|
select date_add(NULL,INTERVAL 100000 SECOND);
|
|
date_add(NULL,INTERVAL 100000 SECOND)
|
|
NULL
|
|
select date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL NULL SECOND)
|
|
NULL
|
|
select date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND);
|
|
date_add("1997-12-31 23:59:59",INTERVAL NULL MINUTE_SECOND)
|
|
NULL
|
|
select date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND);
|
|
date_add("9999-12-31 23:59:59",INTERVAL 1 SECOND)
|
|
NULL
|
|
select date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND);
|
|
date_sub("0000-00-00 00:00:00",INTERVAL 1 SECOND)
|
|
NULL
|
|
select date_add('1998-01-30',Interval 1 month);
|
|
date_add('1998-01-30',Interval 1 month)
|
|
1998-02-28
|
|
select date_add('1998-01-30',Interval '2:1' year_month);
|
|
date_add('1998-01-30',Interval '2:1' year_month)
|
|
2000-02-29
|
|
select date_add('1996-02-29',Interval '1' year);
|
|
date_add('1996-02-29',Interval '1' year)
|
|
1997-02-28
|
|
select extract(YEAR FROM "1999-01-02 10:11:12");
|
|
extract(YEAR FROM "1999-01-02 10:11:12")
|
|
1999
|
|
select extract(YEAR_MONTH FROM "1999-01-02");
|
|
extract(YEAR_MONTH FROM "1999-01-02")
|
|
199901
|
|
select extract(DAY FROM "1999-01-02");
|
|
extract(DAY FROM "1999-01-02")
|
|
2
|
|
select extract(DAY_HOUR FROM "1999-01-02 10:11:12");
|
|
extract(DAY_HOUR FROM "1999-01-02 10:11:12")
|
|
210
|
|
select extract(DAY_MINUTE FROM "02 10:11:12");
|
|
extract(DAY_MINUTE FROM "02 10:11:12")
|
|
21011
|
|
select extract(DAY_SECOND FROM "225 10:11:12");
|
|
extract(DAY_SECOND FROM "225 10:11:12")
|
|
225101112
|
|
select extract(HOUR FROM "1999-01-02 10:11:12");
|
|
extract(HOUR FROM "1999-01-02 10:11:12")
|
|
10
|
|
select extract(HOUR_MINUTE FROM "10:11:12");
|
|
extract(HOUR_MINUTE FROM "10:11:12")
|
|
1011
|
|
select extract(HOUR_SECOND FROM "10:11:12");
|
|
extract(HOUR_SECOND FROM "10:11:12")
|
|
101112
|
|
select extract(MINUTE FROM "10:11:12");
|
|
extract(MINUTE FROM "10:11:12")
|
|
11
|
|
select extract(MINUTE_SECOND FROM "10:11:12");
|
|
extract(MINUTE_SECOND FROM "10:11:12")
|
|
1112
|
|
select extract(SECOND FROM "1999-01-02 10:11:12");
|
|
extract(SECOND FROM "1999-01-02 10:11:12")
|
|
12
|
|
select extract(MONTH FROM "2001-02-00");
|
|
extract(MONTH FROM "2001-02-00")
|
|
2
|
|
create table t1 (ctime varchar(20));
|
|
insert into t1 values ('2001-01-12 12:23:40');
|
|
select ctime, hour(ctime) from t1;
|
|
ctime hour(ctime)
|
|
2001-01-12 12:23:40 12
|
|
select ctime from t1 where extract(MONTH FROM ctime) = 1 AND extract(YEAR FROM ctime) = 2001;
|
|
ctime
|
|
2001-01-12 12:23:40
|
|
drop table t1;
|
|
create table t1 (id int);
|
|
create table t2 (id int, date date);
|
|
insert into t1 values (1);
|
|
insert into t2 values (1, "0000-00-00");
|
|
insert into t1 values (2);
|
|
insert into t2 values (2, "2000-01-01");
|
|
select monthname(date) from t1 inner join t2 on t1.id = t2.id;
|
|
monthname(date)
|
|
NULL
|
|
January
|
|
select monthname(date) from t1 inner join t2 on t1.id = t2.id order by t1.id;
|
|
monthname(date)
|
|
NULL
|
|
January
|
|
drop table t1,t2;
|
|
CREATE TABLE t1 (updated text) TYPE=MyISAM;
|
|
INSERT INTO t1 VALUES ('');
|
|
SELECT month(updated) from t1;
|
|
month(updated)
|
|
NULL
|
|
SELECT year(updated) from t1;
|
|
year(updated)
|
|
NULL
|
|
drop table t1;
|
|
create table t1 (d date, dt datetime, t timestamp, c char(10));
|
|
insert into t1 values ("0000-00-00", "0000-00-00", "0000-00-00", "0000-00-00");
|
|
select dayofyear("0000-00-00"),dayofyear(d),dayofyear(dt),dayofyear(t),dayofyear(c) from t1;
|
|
dayofyear("0000-00-00") dayofyear(d) dayofyear(dt) dayofyear(t) dayofyear(c)
|
|
NULL NULL NULL NULL NULL
|
|
select dayofmonth("0000-00-00"),dayofmonth(d),dayofmonth(dt),dayofmonth(t),dayofmonth(c) from t1;
|
|
dayofmonth("0000-00-00") dayofmonth(d) dayofmonth(dt) dayofmonth(t) dayofmonth(c)
|
|
0 0 0 0 0
|
|
select month("0000-00-00"),month(d),month(dt),month(t),month(c) from t1;
|
|
month("0000-00-00") month(d) month(dt) month(t) month(c)
|
|
0 0 0 0 0
|
|
select quarter("0000-00-00"),quarter(d),quarter(dt),quarter(t),quarter(c) from t1;
|
|
quarter("0000-00-00") quarter(d) quarter(dt) quarter(t) quarter(c)
|
|
0 0 0 0 0
|
|
select week("0000-00-00"),week(d),week(dt),week(t),week(c) from t1;
|
|
week("0000-00-00") week(d) week(dt) week(t) week(c)
|
|
NULL NULL NULL NULL NULL
|
|
select year("0000-00-00"),year(d),year(dt),year(t),year(c) from t1;
|
|
year("0000-00-00") year(d) year(dt) year(t) year(c)
|
|
0 0 0 0 0
|
|
select yearweek("0000-00-00"),yearweek(d),yearweek(dt),yearweek(t),yearweek(c) from t1;
|
|
yearweek("0000-00-00") yearweek(d) yearweek(dt) yearweek(t) yearweek(c)
|
|
NULL NULL NULL NULL NULL
|
|
select to_days("0000-00-00"),to_days(d),to_days(dt),to_days(t),to_days(c) from t1;
|
|
to_days("0000-00-00") to_days(d) to_days(dt) to_days(t) to_days(c)
|
|
NULL NULL NULL NULL NULL
|
|
select extract(MONTH FROM "0000-00-00"),extract(MONTH FROM d),extract(MONTH FROM dt),extract(MONTH FROM t),extract(MONTH FROM c) from t1;
|
|
extract(MONTH FROM "0000-00-00") extract(MONTH FROM d) extract(MONTH FROM dt) extract(MONTH FROM t) extract(MONTH FROM c)
|
|
0 0 0 0 0
|
|
drop table t1;
|
|
CREATE TABLE t1 ( start datetime default NULL);
|
|
INSERT INTO t1 VALUES ('2002-10-21 00:00:00'),('2002-10-28 00:00:00'),('2002-11-04 00:00:00');
|
|
CREATE TABLE t2 ( ctime1 timestamp(14) NOT NULL, ctime2 timestamp(14) NOT NULL);
|
|
INSERT INTO t2 VALUES (20021029165106,20021105164731);
|
|
CREATE TABLE t3 (ctime1 char(19) NOT NULL, ctime2 char(19) NOT NULL);
|
|
INSERT INTO t3 VALUES ("2002-10-29 16:51:06","2002-11-05 16:47:31");
|
|
select * from t1, t2 where t1.start between t2.ctime1 and t2.ctime2;
|
|
start ctime1 ctime2
|
|
2002-11-04 00:00:00 20021029165106 20021105164731
|
|
select * from t1, t2 where t1.start >= t2.ctime1 and t1.start <= t2.ctime2;
|
|
start ctime1 ctime2
|
|
2002-11-04 00:00:00 20021029165106 20021105164731
|
|
select * from t1, t3 where t1.start between t3.ctime1 and t3.ctime2;
|
|
start ctime1 ctime2
|
|
2002-11-04 00:00:00 2002-10-29 16:51:06 2002-11-05 16:47:31
|
|
drop table t1,t2,t3;
|
|
select @a:=FROM_UNIXTIME(1);
|
|
@a:=FROM_UNIXTIME(1)
|
|
1970-01-01 03:00:01
|
|
select unix_timestamp(@a);
|
|
unix_timestamp(@a)
|
|
1
|
|
select unix_timestamp('1969-12-01 19:00:01');
|
|
unix_timestamp('1969-12-01 19:00:01')
|
|
0
|