@@ -1,5 +1,6 @@
DELIMITER ??
-DROP PROCEDURE
+DROP PROCEDURE IF
+ EXISTS schema_change ?? CREATE PROCEDURE schema_change () BEGIN
IF
NOT EXISTS ( SELECT * FROM INFORMATION_SCHEMA.COLUMNS WHERE table_schema = DATABASE () AND TABLE_NAME = 'sys_org' AND COLUMN_NAME = 'breviary' ) THEN
ALTER TABLE `sys_org` ADD COLUMN `breviary` VARCHAR ( 255 ) NULL COMMENT '机构缩略词';