Detailed introduction to the storage process

Stored procedures require MySQL 5. MySQL 5 adds support for stored procedures. Therefore, the content of this chapter applies to MySQL 5 and later versions. Most SQL statements used so far are single statements against one or more tables. Not all operations are so simple, and often a complete operation requires multiple statements to complete. For example, consider the following situation. 1. In order to process the order, verification is required to ensure that the corresponding items are in stock. 2. If there are items in stock, these items need to be reserved so that they are not resold to others, and the number of items available is reduced to reflect the correct inventory level. 3. Items not in stock need to be ordered, which requires some interaction with the supplier. 4. The appropriate customers need to be notified about which items are in stock (and can be shipped immediately) and which items are unsubscribed. This is obviously not a complete example, and it is even beyond the scope of the sample tables used in this book, but it is enough to help convey what we mean. Performing this processing requires multiple MySQL statements against many tables. Furthermore, the specific statements that need to be executed and their order are not fixed, they can (and will) change depending on which items are in the inventory and which are not. Then

1. Why use mysql stored procedure? Introduction to mysql stored procedures

## Introduction: Requires MySQL 5 MySQL 5 adds support for stored procedures, so , the contents of this chapter apply to MySQL 5 and later versions. Most SQL statements used so far are single statements against one or more tables. Not all operations are so simple, and often a complete operation requires multiple statements to complete. For example, consider the following situation. 1. In order to process the order, verification is required to ensure that the corresponding items are in stock.

2. PHP calls Oracle, mysql, mssql server stored procedure method_PHP tutorial

Introduction: PHP call Oracle, mysql, mssql server stored procedure method. The following summarizes how three popular database tutorials use PHP tutorials to call their stored procedures. We will talk about mysql tutorials, oracle, and mssql server. ?php function check_login($use

##3.

How to add an UPDATE to a stored procedure, experts can help

Introduction: How to add a stored procedure to an UPDATE, expert help

4.

PHP calls Oracle, mysql, mssql server stored procedure method

Introduction: PHP calls Oracle, mysql, mssql server stored procedure methods. The following summarizes how three popular database tutorials use PHP tutorials to call their stored procedures. We will talk about mysql tutorials. oracle, mssql server. ?php function check_login($use

##5.

Notes on batch deletion of SQL Server through stored procedures

Introduction: The parameters passed here are set to be spliced ​​strings, such as: 1,2,3,4,5 create procedure up_batchDeleteById ( @condition varchar(max) ) as delete from dt_name where id in (@condition) The above approach seems correct, but in fact an error will be reported. The specific reason is that id is of int type, and @condition is a word

6.

MySQL Management User permissions

Introduction: MySQL user management mysql authorization level · global level · database level (can delete the created library · table level · field level · stored procedure, stored function level Three permission types that need to be understood·Management class·Database access class

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Oracle 11g Release 1 (11.1) PL/SQL Collection method

Introduction: The collection method is a built-in PL/SQL subroutine that can return collection information or perform operations on the collection. Very convenient. You can click on

##8. MySQL stored procedure backup and restore techniques

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Introduction: Dump stored procedures (functions and procedures) in the dumped database. The output produced using ---routines contains CREATE PROCEDURE and CREATE FUNCTION statements to recreate the sub

9. Using SQL Server Add Delete Modify Query Stored Procedure

Introduction: --Add create procedure usp_add (@table nvarchar(255), @values ​​nvarchar(max)=null) as declare @sql nvarchar(max) set @sql='insert into '+@table if @values ​​is not null set @sql='insert into '+@table+' values('+@values+')' exec sp_execute

10. SQLServer gets all database names, table names, stored procedures and parameter lists

Introduction: 1. Get all user names: SELECTnameFROMSysusers where status = ' 2 ' andislogin = ' 1 ' islogin = ' 1 ' represents an account islogin = ' 0 ' represents a role status = ' 2 ' represents a user account status = ' 0 ' represents a system account 2. Get all database names: SELECTNameFROMMaster..SysDatab

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