在 MYSQL 中创建具有特定模式的存储过程并授予用户执行权限

Question

Hello i have two db schemas " results " and " base ". I am trying to create stored procedure in "results" database, and at the same time to give permission to user to run this procedure. What i did is:

DELIMITER //
DROP PROCEDURE IF EXISTS results.truncateResultsTable //
CREATE PROCEDURE results.truncateResultsTable(genId VARCHAR(255))
BEGIN
    SET @genId = genId;
    SET @q = CONCAT('TRUNCATE TABLE results_' , @genId);
    PREPARE stmt FROM @q;
    EXECUTE stmt;
    DEALLOCATE PREPARE stmt;
    GRANT EXECUTE ON FUNCTION results.truncateResultsTable TO 'lam_api'@'%';
END //

But getting this error

execute command denied to user 'lam_api'@'%' for routine 'results.truncateResultsTable

Any idea what i am doing wrong?

Answer 1

Here is right solution, i had couple of issues. GARANT part was misplaced, also was missing DELIMITER ;

 DELIMITER //
    DROP PROCEDURE IF EXISTS results.truncateResultsTable //
    CREATE PROCEDURE results.truncateResultsTable(genId VARCHAR(255))
    BEGIN
        SET @genId = genId;
        SET @q = CONCAT('TRUNCATE TABLE results_' , @genId);
        PREPARE stmt FROM @q;
        EXECUTE stmt;
        DEALLOCATE PREPARE stmt;
    END //
    DELIMITER ;
    
    GRANT EXECUTE ON PROCEDURE results.truncateResultsTable TO 'lam_api'@'%';