要创建用户自定义函数,可以使用CREATE FUNCTION语句。CREATE FUNCTION语句的基本语法如下: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATEFUNCTIONfunction_name([parameter1 datatype1,parameter2 datatype2,...])RETURNSreturn_datatype[characteristics]BEGIN--SQL语句集合RETURNexpression;END; function_name...
数据库的dump脚本:Github use mysql_practice;dropprocedureifexistssp_get_customer_basic_info;-- #1: 吧默认的分隔符从 ';' 改为 '$$';-- 注: $$ 后面没有 ';'DELIMITER $$createproceduresp_get_customer_basic_info (INlimitCountINT,OUTtotalCountINT)BEGINdeclaretotal_countintdefault0;-- 定义局部...
mysql > DELIMITER // mysql > CREATE PROCEDURE proc1 --name存储过程名 -> (IN parameter1 INTEGER) -> BEGIN -> DECLARE variable1 CHAR(10); -> IF parameter1 = 17 THEN -> SET variable1 = 'birds'; -> ELSE -> SET variable1 = 'beasts'; -> END IF; -> INSERT INTO table1 VALUES ...
use mysql_practice;drop procedureifexists sp_get_customer_basic_info;--#1:吧默认的分隔符从';'改为'$$';--注:$$ 后面没有';'DELIMITER$$ create proceduresp_get_customer_basic_info(INlimitCountINT,OUTtotalCountINT)BEGINdeclare total_count intdefault0;--定义局部变量:scope 在BEGIN和END之间 set...
SELECTmy_function(10); 1. 解决“mysql 创建函数出现invalid stored procedure” 的问题 通过按照上述步骤检查并纠正可能存在的问题,可以解决 “mysql 创建函数出现invalid stored procedure” 的问题。 如果您仍然遇到问题,可以查阅 MySQL 官方文档,或在相关的开发者社区中咨询其他开发者的意见。
function pdo_execute_query($dbInfo, $sql) { $return_val = false; $dbConnString = "mysql:host=" . $dbInfo['database_target'] . "; dbname=" . $dbInfo['database_name']; $conn = new PDO($dbConnString, $dbInfo['username'], $dbInfo['password']); ...
COMMENT子句是一个MySQL的扩展,它可以被用来描述存储程序。这个信息被SHOW CREATE PROCEDURE和SHOW CREATE FUNCTION语句来显示。存储子程序不能使用LOAD DATA INFILE。 特征子句也有默认值,如果省略了就相当于:LANGUAGE SQL NOT DETERMINISTIC SQL SECURITY DEFINER COMMENT '' ...
The following MySQL statements demonstrate how to create a very basic stored procedure namedprocedureTest. This procedure performs a simple lookup on theproductstable that we used in the stored function example above. Although this procedure does not have much practical use, it demonstrates the correc...
A.4.26. What limitations exist for replicating stored procedure and function actions? A.4.27. Do the preceding limitations affect the ability of MySQL to do point-in-time recovery? A.4.28. What is being done to correct the aforementioned limitations? A.4.1. Does MySQL support stored proce...
I agree the documentation at http://dev.mysql.com/doc/refman/5.5/en/create-procedure.html for writing stored stored procs and stored funcs is unclear at best, Re your func: unfortunately funcs can only return scalar values, funcs don't support OUT params, and funcs can select into vars...