text: DROP PROCEDURE IF EXISTS MigrationsScript;
  DELIMITER //
  CREATE PROCEDURE MigrationsScript()
  BEGIN
      IF NOT EXISTS(SELECT 1 FROM `__EFMigrationsHistory` WHERE `MigrationId` = '20210729025210_T0_6') THEN
  
      ALTER TABLE `Test` ADD `Column1` varchar(200) CHARACTER SET utf8mb4 NULL;
  
      END IF;
  END //
  DELIMITER ;
  CALL MigrationsScript();
  DROP PROCEDURE MigrationsScript;
  
  DROP PROCEDURE IF EXISTS MigrationsScript;
  DELIMITER //
  CREATE PROCEDURE MigrationsScript()
  BEGIN
      IF NOT EXISTS(SELECT 1 FROM `__EFMigrationsHistory` WHERE `MigrationId` = '20210729025210_T0_6') THEN
  
      ALTER TABLE `Test` ADD `Column2` varchar(200) CHARACTER SET utf8mb4 NULL;
  
      END IF;
  END //
  DELIMITER ;
  CALL MigrationsScript();
  DROP PROCEDURE MigrationsScript;
  
  DROP PROCEDURE IF EXISTS MigrationsScript;
  DELIMITER //
  CREATE PROCEDURE MigrationsScript()
  BEGIN
      IF NOT EXISTS(SELECT 1 FROM `__EFMigrationsHistory` WHERE `MigrationId` = '20210729025210_T0_6') THEN
  
      ALTER TABLE `Test` ADD `Column3` varchar(200) CHARACTER SET utf8mb4 NULL;
  
      END IF;
  END //
  DELIMITER ;
  CALL MigrationsScript();
  DROP PROCEDURE MigrationsScript;
  
  DROP PROCEDURE IF EXISTS MigrationsScript;
  DELIMITER //
  CREATE PROCEDURE MigrationsScript()
  BEGIN
      IF NOT EXISTS(SELECT 1 FROM `__EFMigrationsHistory` WHERE `MigrationId` = '20210729025210_T0_6') THEN
  
      ALTER TABLE `Test` ADD `Column4` varchar(200) CHARACTER SET utf8mb4 NULL;
  
      END IF;
  END //
  DELIMITER ;
  CALL MigrationsScript();
  DROP PROCEDURE MigrationsScript;
  
  DROP PROCEDURE IF EXISTS MigrationsScript;
  DELIMITER //
  CREATE PROCEDURE MigrationsScript()
  BEGIN
      IF NOT EXISTS(SELECT 1 FROM `__EFMigrationsHistory` WHERE `MigrationId` = '20210729025210_T0_6') THEN
  
      ALTER TABLE `Test` ADD `Column5` varchar(200) CHARACTER SET utf8mb4 NULL;
  
      END IF;
  END //
  DELIMITER ;
  CALL MigrationsScript();
  DROP PROCEDURE MigrationsScript;