I'd like to do this:
#Variables
SET @username="jdoe", @password="secret";
# Insert a new MySQL User
CREATE USER @username@'localhost' IDENTIFIED BY @password;GRANT USAGE ON *.* TO @username@'localhost' IDENTIFIED BY @password WITH MAX_QUERIES_PER_HOUR 120 MAX_CONNECTIONS_PER_HOUR 60 MAX_UPDATES_PER_HOUR 60 MAX_USER_CONNECTIONS 2;
But get:
#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '@username@'localhost' IDENTIFIED BY @password' at line 2
How do I use a variable in the CREATE USER statement?
You can use dynamic SQL
as:
SET @query1 = CONCAT('
CREATE USER "',@username,'"@"localhost" IDENTIFIED BY "',@password,'" '
);
PREPARE stmt FROM @query1; EXECUTE stmt; DEALLOCATE PREPARE stmt;
SET @query1 = CONCAT('
GRANT USAGE ON *.* TO "',@username,'"@"localhost" IDENTIFIED BY "',@password,'" WITH
MAX_QUERIES_PER_HOUR 120 MAX_CONNECTIONS_PER_HOUR 60 MAX_UPDATES_PER_HOUR 60
MAX_USER_CONNECTIONS 2'
);
PREPARE stmt FROM @query1; EXECUTE stmt; DEALLOCATE PREPARE stmt;
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