mysql使用命令行执行存储过程

编写存储过程sql

以给brand表添加phone字段为例：

DROP PROCEDURE  IF EXISTS UpdateColum;
CREATE PROCEDURE UpdateColum()
BEGIN

SELECT database() INTO @dbName;
    
    
SET @tablename = 'brand';
SET @column_name = 'phone';
SELECT 
    CONCAT(
        'select count(*) into @colName from information_schema.columns where table_name = ''',
        @tablename,
        ''' and column_name = ''',
        @column_name,
        ''' and table_schema=''', 
        @dbName,
        ''';'
        ) 
INTO 
    @ckstring;

PREPARE SQLStr1 FROM @ckstring;
EXECUTE SQLStr1;
DEALLOCATE PREPARE SQLStr1; 
 
IF @colName = 0 THEN 
    ALTER TABLE 
        brand 
    ADD 
        phone varchar(255) NOT NULL DEFAULT '';
END IF;

END;


CALL UpdateColum();
DROP PROCEDURE  IF EXISTS UpdateColum;

命令行方式执行存储过程

执行以下三条命令：

命令1：修改行分割符

delimiter ;;

命令2：执行sql文件

source /root/xxx.sql

命令3：恢复行分割符

delimiter ;