mariadb set variable from select
Yes, but you need to move the variable assignment into the query: SET @user := 123456; SELECT @group := `group` FROM user WHERE ...,SQL statement used primarily for retrieving data from a MariaDB database. ... SELECT INTO Variable - selecting and setting variables. The reverse of SELECT ... ,For the complete syntax, see SELECT. Another way to set a variable's value is the SET statement. SELECT ... INTO results are not stored in the query cache ... ,Set a variable value. ... (HY000): Variable 'innodb_sync_spin_loops' is a GLOBAL variable and should be set with SET GLOBAL SELECT VARIABLE_NAME, ... , The issue is that you cannot mix select and set in one statement, there'll surely be syntax ... Here's how you update the variable upon each row:,SET can be used with both local variables and user-defined variables. When setting several variables using the columns returned by a query, SELECT INTO should be preferred. To set many variables to the same value, the LAST_VALUE( ) function can be used. , I did some further research and found this to work. GUI Input: enter image description here. SQL Query Input: enter image description here.,The WHERE clause can be given to select rows using more general conditions. With the GLOBAL ... See SET for information on setting server system variables. ,To set a value for a user-defined variable you can use: SET statement; := operator within a SQL statement; SELECT ... ,You can assign a value returned by a SELECT statement to a user-defined variable, and then refer to the variable later in your mysql session. This provides a ...
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 mariadb set variable from select 相關參考資料
MySQL: Set user variable from result of query - Stack Overflow
Yes, but you need to move the variable assignment into the query: SET @user := 123456; SELECT @group := `group` FROM user WHERE ... https://stackoverflow.com SELECT - MariaDB Knowledge Base
SQL statement used primarily for retrieving data from a MariaDB database. ... SELECT INTO Variable - selecting and setting variables. The reverse of SELECT ... https://mariadb.com SELECT INTO - MariaDB Knowledge Base
For the complete syntax, see SELECT. Another way to set a variable's value is the SET statement. SELECT ... INTO results are not stored in the query cache ... https://mariadb.com SET - MariaDB Knowledge Base
Set a variable value. ... (HY000): Variable 'innodb_sync_spin_loops' is a GLOBAL variable and should be set with SET GLOBAL SELECT VARIABLE_NAME, ... https://mariadb.com SET a variable in SELECT statement - MySQL - Stack Overflow
The issue is that you cannot mix select and set in one statement, there'll surely be syntax ... Here's how you update the variable upon each row: https://stackoverflow.com SET Variable - MariaDB Knowledge Base
SET can be used with both local variables and user-defined variables. When setting several variables using the columns returned by a query, SELECT INTO should be preferred. To set many variables to th... https://mariadb.com Setting user-defined variable with select in stored procedure ...
I did some further research and found this to work. GUI Input: enter image description here. SQL Query Input: enter image description here. https://stackoverflow.com SHOW VARIABLES - MariaDB Knowledge Base
The WHERE clause can be given to select rows using more general conditions. With the GLOBAL ... See SET for information on setting server system variables. https://mariadb.com User-Defined Variables - MariaDB Knowledge Base
To set a value for a user-defined variable you can use: SET statement; := operator within a SQL statement; SELECT ... https://mariadb.com Using User-Defined Variables in SQL Statements - MySQL ...
You can assign a value returned by a SELECT statement to a user-defined variable, and then refer to the variable later in your mysql session. This provides a ... https://www.oreilly.com |