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mysql存储过程BEGIN END复合语句用法示例

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Jun 07, 2016 pm 04:20 PM

mysqlstorageusageExamplestatementprocess

mysql存储过程BEGIN END复合语句用法示例 begin_label:] BEGIN [statement_list] END [end_label] 存储子程序可以使用BEGIN ... END复合语句来包含多个语句。statement_list 代表一个或多个语句的列表。statement_list之内每个语句都必须用分号(;)来结尾。

　　mysql存储过程BEGIN END复合语句用法示例

　　begin_label:] BEGIN

　　[statement_list]

　　END [end_label]

　　存储子程序可以使用BEGIN ... END复合语句来包含多个语句。statement_list 代表一个或多个语句的列表。statement_list之内每个语句都必须用分号(;)来结尾。

　　复合语句可以被标记。除非begin_label存在,否则end_label不能被给出,并且如果二者都存在,他们必须是同样的。

　　请注意，可选的[NOT] ATOMIC子句现在还不被支持。这意味着在指令块的开始没有交互的存储点被设置，，并且在上下文中用到的BEGIN子句对当前交互动作没有影响。

　　使用多重语句需要客户端能发送包含语句定界符;的查询字符串。这个符号在命令行客户端被用delimiter命令来处理。改变查询结尾定界符;(比如改变为//)使得; 可被用在子程序体中。

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