mirror of
https://github.com/MariaDB/server.git
synced 2025-10-31 02:46:29 +01:00
391 lines
6.2 KiB
Text
391 lines
6.2 KiB
Text
DROP TABLE IF EXISTS t1, t2;
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CREATE TABLE t1 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t1 (a,b) VALUES (100,'foobar'),(1,'z'),(200,'bar');
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CREATE TABLE t2 (a <INT_COLUMN>, b <CHAR_COLUMN>) ENGINE=<STORAGE_ENGINE> <CUSTOM_TABLE_OPTIONS>;
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INSERT INTO t2 (a,b) SELECT a, b FROM t1;
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INSERT INTO t1 (a,b) SELECT a, b FROM t2;
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SELECT * FROM t1;
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a b
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1 z
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1 z
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100 foobar
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100 foobar
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200 bar
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200 bar
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SELECT DISTINCT a FROM t1;
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a
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1
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100
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200
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SELECT ALL b, a FROM t1;
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b a
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bar 200
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bar 200
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foobar 100
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foobar 100
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z 1
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z 1
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SELECT STRAIGHT_JOIN SQL_CACHE t1.* FROM t2, t1 WHERE t1.a <> t2.a;
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a b
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1 z
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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200 bar
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SELECT SQL_SMALL_RESULT SQL_NO_CACHE t1.a FROM t1, t2;
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a
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1
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1
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1
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1
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1
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1
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100
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100
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100
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100
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100
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100
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200
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200
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200
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200
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200
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200
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SELECT SQL_BIG_RESULT SQL_CALC_FOUND_ROWS DISTINCT(t2.a)
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FROM t1 t1_1, t2, t1 t1_2;
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a
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1
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100
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200
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SELECT FOUND_ROWS();
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FOUND_ROWS()
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3
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SET GLOBAL query_cache_type = ON;
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SET query_cache_type = ON;
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SELECT SQL_CACHE * FROM t1, t2;
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a b a b
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1 z 1 z
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1 z 1 z
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1 z 100 foobar
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1 z 100 foobar
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1 z 200 bar
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1 z 200 bar
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100 foobar 1 z
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100 foobar 1 z
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100 foobar 100 foobar
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100 foobar 100 foobar
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100 foobar 200 bar
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100 foobar 200 bar
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200 bar 1 z
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200 bar 1 z
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200 bar 100 foobar
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200 bar 100 foobar
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200 bar 200 bar
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200 bar 200 bar
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SET GLOBAL query_cache_type = DEFAULT;
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SELECT a+10 AS field1, CONCAT(b,':',b) AS field2 FROM t1
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WHERE b > 'b' AND a IS NOT NULL
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GROUP BY 2 DESC, field1 ASC
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HAVING field1 < 1000
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ORDER BY field2, 1 DESC, field1*2
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LIMIT 5 OFFSET 1 ROWS EXAMINED 100000;
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field1 field2
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11 z:z
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110 foobar:foobar
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SELECT SUM(a), MAX(a), b FROM t1 GROUP BY b WITH ROLLUP;
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SUM(a) MAX(a) b
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2 1 z
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200 100 foobar
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400 200 bar
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602 200 NULL
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SELECT * FROM t2 WHERE a>0 PROCEDURE ANALYSE();
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Field_name Min_value Max_value Min_length Max_length Empties_or_zeros Nulls Avg_value_or_avg_length Std Optimal_fieldtype
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test.t2.a 1 200 1 3 0 0 100.3333 81.2418 ENUM('1','100','200') NOT NULL
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test.t2.b bar z 1 6 0 0 3.3333 NULL ENUM('bar','foobar','z') NOT NULL
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SELECT t1.a, t2.b FROM t2, t1 WHERE t1.a = t2.a ORDER BY t2.b, t1.a
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INTO OUTFILE '<DATADIR>/select.out'
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CHARACTER SET utf8
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FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '''';
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200,'bar'
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200,'bar'
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100,'foobar'
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100,'foobar'
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1,'z'
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1,'z'
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SELECT t1.a, t2.b FROM t2, t1 WHERE t1.a = t2.a ORDER BY t2.b, t1.a
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INTO DUMPFILE '<DATADIR>/select.dump';
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ERROR 42000: Result consisted of more than one row
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SELECT t1.*, t2.* FROM t1, t2 ORDER BY t2.b, t1.a, t2.a, t1.b LIMIT 1
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INTO DUMPFILE '<DATADIR>/select.dump';
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1z200bar
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SELECT MIN(a), MAX(a) FROM t1 INTO @min, @max;
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SELECT @min, @max;
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@min @max
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1 200
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SELECT t1_1.*, t2.* FROM t2, t1 AS t1_1, t1 AS t1_2
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WHERE t1_1.a = t1_2.a AND t2.a = t1_1.a;
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a b a b
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1 z 1 z
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1 z 1 z
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1 z 1 z
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1 z 1 z
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100 foobar 100 foobar
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100 foobar 100 foobar
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100 foobar 100 foobar
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100 foobar 100 foobar
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200 bar 200 bar
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200 bar 200 bar
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200 bar 200 bar
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200 bar 200 bar
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SELECT alias1.* FROM ( SELECT a,b FROM t1 ) alias1, t2 WHERE t2.a IN (100,200);
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a b
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1 z
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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200 bar
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SELECT t1.a FROM { OJ t1 LEFT OUTER JOIN t2 ON t1.a = t2.a+10 };
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a
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1
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1
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100
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100
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200
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200
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SELECT t1.* FROM t2 INNER JOIN t1;
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a b
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1 z
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1 z
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1 z
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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200 bar
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200 bar
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200 bar
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SELECT t1_2.* FROM t1 t1_1 CROSS JOIN t1 t1_2 ON t1_1.b = t1_2.b;
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a b
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1 z
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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200 bar
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SELECT t1.a, t2.b FROM t2 STRAIGHT_JOIN t1 WHERE t1.b > t2.b;
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a b
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1 bar
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1 bar
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1 foobar
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1 foobar
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100 bar
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100 bar
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SELECT t1.a, t2.b FROM t2 STRAIGHT_JOIN t1 ON t1.b > t2.b ORDER BY t1.a, t2.b;
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a b
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1 bar
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1 bar
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1 foobar
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1 foobar
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100 bar
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100 bar
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SELECT t2.* FROM t1 LEFT JOIN t2 USING (a) ORDER BY t2.a, t2.b LIMIT 1;
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a b
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1 z
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SELECT t2.* FROM t2 LEFT OUTER JOIN t1 ON t1.a = t2.a WHERE t1.a IS NOT NULL;
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a b
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1 z
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1 z
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100 foobar
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100 foobar
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200 bar
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200 bar
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SELECT SUM(t2.a) FROM t1 RIGHT JOIN t2 ON t2.b = t1.b;
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SUM(t2.a)
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602
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SELECT MIN(t2.a) FROM t1 RIGHT OUTER JOIN t2 USING (b,a);
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MIN(t2.a)
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1
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SELECT alias.b FROM t1 NATURAL JOIN ( SELECT a,b FROM t1 ) alias WHERE b > '';
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b
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bar
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bar
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bar
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bar
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foobar
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foobar
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foobar
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foobar
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z
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z
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z
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z
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SELECT t2.b FROM ( SELECT a,b FROM t1 ) alias NATURAL LEFT JOIN t2 WHERE b IS NOT NULL;
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b
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bar
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bar
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foobar
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foobar
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z
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z
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SELECT t1.*, t2.* FROM t1 NATURAL LEFT OUTER JOIN t2;
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a b a b
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1 z 1 z
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1 z 1 z
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100 foobar 100 foobar
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100 foobar 100 foobar
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200 bar 200 bar
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200 bar 200 bar
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SELECT t2_2.* FROM t2 t2_1 NATURAL RIGHT JOIN t2 t2_2 WHERE t2_1.a IN ( SELECT a FROM t1 );
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a b
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1 z
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100 foobar
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200 bar
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SELECT t1_2.b FROM t1 t1_1 NATURAL RIGHT OUTER JOIN t1 t1_2 INNER JOIN t2;
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b
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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bar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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foobar
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z
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z
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z
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z
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z
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z
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z
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z
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z
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z
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z
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z
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SELECT ( SELECT MIN(a) FROM ( SELECT a,b FROM t1 ) alias1 ) AS min_a FROM t2;
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min_a
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1
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1
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1
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SELECT a,b FROM t2 WHERE a = ( SELECT MIN(a) FROM t1 );
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a b
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1 z
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SELECT a,b FROM t2 WHERE b LIKE ( SELECT b FROM t1 ORDER BY b LIMIT 1 );
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a b
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200 bar
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SELECT t2.* FROM t1 t1_outer, t2 WHERE ( t1_outer.a, t2.b ) IN ( SELECT a, b FROM t2 WHERE a = t1_outer.a );
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a b
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1 z
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1 z
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100 foobar
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100 foobar
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200 bar
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200 bar
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SELECT a,b FROM t2 WHERE b = ANY ( SELECT b FROM t1 WHERE a > 1 );
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a b
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100 foobar
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200 bar
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SELECT a,b FROM t2 WHERE b > ALL ( SELECT b FROM t1 WHERE b < 'foo' );
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a b
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1 z
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100 foobar
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SELECT a,b FROM t1 WHERE ROW(a, b) = ( SELECT a, b FROM t2 ORDER BY a, b LIMIT 1 );
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a b
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1 z
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1 z
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SELECT a,b FROM t1 WHERE EXISTS ( SELECT a,b FROM t2 WHERE t2.b > t1.b );
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a b
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100 foobar
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100 foobar
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200 bar
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200 bar
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SELECT t1.* FROM t1, t2 ORDER BY ( SELECT b FROM t1 WHERE a IS NULL ORDER BY b LIMIT 1 ) DESC;
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a b
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1 z
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1 z
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1 z
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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200 bar
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200 bar
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200 bar
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SELECT a, b FROM t1 HAVING a IN ( SELECT a FROM t2 WHERE b = t1.b );
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a b
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1 z
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1 z
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100 foobar
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100 foobar
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200 bar
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200 bar
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SELECT a,b FROM t1 UNION SELECT a,b FROM t2 UNION DISTINCT SELECT a,b FROM t1;
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a b
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1 z
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100 foobar
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200 bar
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SELECT a,b FROM t1 UNION SELECT a,b FROM t2 UNION ALL SELECT a,b FROM t1;
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a b
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1 z
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1 z
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1 z
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100 foobar
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100 foobar
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100 foobar
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200 bar
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200 bar
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200 bar
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DROP TABLE t1, t2;
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