mirror of
https://github.com/MariaDB/server.git
synced 2025-11-25 23:19:43 +01:00
62 lines
2.2 KiB
Text
62 lines
2.2 KiB
Text
SELECT PLUGIN_NAME, PLUGIN_VERSION, PLUGIN_STATUS, PLUGIN_TYPE, PLUGIN_AUTHOR, PLUGIN_DESCRIPTION, PLUGIN_LICENSE, LOAD_OPTION, PLUGIN_MATURITY FROM INFORMATION_SCHEMA.PLUGINS WHERE PLUGIN_NAME='user_variables';
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PLUGIN_NAME user_variables
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PLUGIN_VERSION 1.0
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PLUGIN_STATUS ACTIVE
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PLUGIN_TYPE INFORMATION SCHEMA
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PLUGIN_AUTHOR Sergey Vojtovich
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PLUGIN_DESCRIPTION User-defined variables
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PLUGIN_LICENSE GPL
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LOAD_OPTION ON
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PLUGIN_MATURITY Stable
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SHOW CREATE TABLE INFORMATION_SCHEMA.USER_VARIABLES;
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Table Create Table
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user_variables CREATE TEMPORARY TABLE `user_variables` (
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`VARIABLE_NAME` varchar(64) NOT NULL,
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`VARIABLE_VALUE` varchar(2048),
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`VARIABLE_TYPE` varchar(64) NOT NULL,
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`CHARACTER_SET_NAME` varchar(32)
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) ENGINE=MEMORY DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_general_ci
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FLUSH USER_VARIABLES;
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.USER_VARIABLES;
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COUNT(*)
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0
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SET @int_var=1;
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SET @uint_var=CAST(2 AS UNSIGNED INTEGER);
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SET @str_var='Value of string variable';
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SET @utf8str_var=_utf8 'UTF8 string value';
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SET @double_var=CAST(1 AS DOUBLE);
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SET @dec_var=CAST(1 AS DECIMAL(20, 10));
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SET @time_var=CAST('2016-02-25' AS DATE);
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SET @' @#^%'='Value of variable with odd name';
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SET @''='Value of variable with empty name';
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ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '='Value of variable with empty name'' at line 1
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SET @null_var=NULL;
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.USER_VARIABLES;
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COUNT(*)
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9
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SELECT * FROM INFORMATION_SCHEMA.USER_VARIABLES ORDER BY VARIABLE_NAME;
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VARIABLE_NAME VARIABLE_VALUE VARIABLE_TYPE CHARACTER_SET_NAME
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@#^% Value of variable with odd name VARCHAR latin1
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dec_var 1.0000000000 DECIMAL latin1
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double_var 1 DOUBLE latin1
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int_var 1 INT latin1
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null_var NULL VARCHAR binary
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str_var Value of string variable VARCHAR latin1
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time_var 2016-02-25 VARCHAR latin1
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uint_var 2 INT UNSIGNED latin1
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utf8str_var UTF8 string value VARCHAR utf8mb3
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SHOW USER_VARIABLES;
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Variable_name Value
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@#^% Value of variable with odd name
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dec_var 1.0000000000
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double_var 1
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int_var 1
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null_var NULL
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str_var Value of string variable
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time_var 2016-02-25
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uint_var 2
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utf8str_var UTF8 string value
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FLUSH USER_VARIABLES;
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.USER_VARIABLES;
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COUNT(*)
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0
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