search
HomeDatabaseMysql Tutorial创建MySQL存储过程示例

创建MySQL存储过程示例

Jun 07, 2016 pm 04:14 PM
mysqlcreatehowstorageExampleprocess

下文将教您如何创建MySQL存储过程,并附上了详细的步骤,如果您在MySQL存储过程方面遇到过问题,不妨一看,对您会有所帮助。 --选择数据库 mysql usetest; Databasechanged --创建示例用表 mysql createtablezzm( - idintprimarykeyauto_increment, - nameva

下文将教您如何创建MySQL存储过程,并附上了详细的步骤,如果您在MySQL存储过程方面遇到过问题,不妨一看,对您会有所帮助。

--选择数据库

  1. <span><span>mysql</span><span class="tag">></span><span> use test;  </span></span>
  2. Database changed 

--创建示例用表

  1. <span><span>mysql</span><span class="tag">></span><span> create table zzm(  </span></span>
  2. -> id int primary key auto_increment,  
  3. -> name varchar(10)  
  4. -> );  
  5. Query OK, 0 rows affected (0.20 sec)  
  6. mysql> insert into zzm(name) values('zhang');  
  7. Query OK, 1 row affected (0.08 sec)  
  8. mysql> insert into zzm(name) values('zeng');  
  9. Query OK, 1 row affected (0.05 sec)  
  10. mysql> insert into zzm(name) values('ming');  
  11. Query OK, 1 row affected (0.05 sec)  
  12. mysql> select * from zzm;  
  13. +----+-------+  
  14. | id | name |  
  15. +----+-------+  
  16. | 1 | zhang |  
  17. | 2 | zeng |  
  18. | 3 | ming |  
  19. +----+-------+  
  20. 3 rows in set (0.00 sec)  

--更改命令结束符(因为在procedure中经常要用到默认的命令结束符--分号(;) --所以在创建procedure的时候需要定义新的结束符以说明创建procedure的命令结束) --这里将结束符号改成美元符号--$ mysql> delimiter $ --创建MySQL存储过程p3 --此存储过程的过程名是p3,该过程包含两个参数, --一个是输入类型的(以IN标示),参数名是nameid,类型是int, --一个是输出类型的(以OUT标示),参数名是person_name,类型是varchar(10) --此存储过程的作用是查询出zzm表的全部内容,会输出结果集(data set),然后 --再查询表中记录的ID是nameid的字段name,将其输出到第二个输出类型的参数里面,这个查询 --不会输出结果集。

  1. <span><span>mysql</span><span class="tag">></span><span> create procedure p3(IN nameid int, OUT person_name varchar(10))  </span></span>
  2. -> begin  
  3. -> select * from test.zzm;  
  4. -> select zzm.name into person_name from test.zzm where zzm.id = nameid;  
  5. -> end  
  6. -> $  
  7. Query OK, 0 rows affected (0.00 sec)  
Statement
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
What Are the Limitations of Using Views in MySQL?What Are the Limitations of Using Views in MySQL?May 14, 2025 am 12:10 AM

MySQLviewshavelimitations:1)Theydon'tsupportallSQLoperations,restrictingdatamanipulationthroughviewswithjoinsorsubqueries.2)Theycanimpactperformance,especiallywithcomplexqueriesorlargedatasets.3)Viewsdon'tstoredata,potentiallyleadingtooutdatedinforma

Securing Your MySQL Database: Adding Users and Granting PrivilegesSecuring Your MySQL Database: Adding Users and Granting PrivilegesMay 14, 2025 am 12:09 AM

ProperusermanagementinMySQLiscrucialforenhancingsecurityandensuringefficientdatabaseoperation.1)UseCREATEUSERtoaddusers,specifyingconnectionsourcewith@'localhost'or@'%'.2)GrantspecificprivilegeswithGRANT,usingleastprivilegeprincipletominimizerisks.3)

What Factors Influence the Number of Triggers I Can Use in MySQL?What Factors Influence the Number of Triggers I Can Use in MySQL?May 14, 2025 am 12:08 AM

MySQLdoesn'timposeahardlimitontriggers,butpracticalfactorsdeterminetheireffectiveuse:1)Serverconfigurationimpactstriggermanagement;2)Complextriggersincreasesystemload;3)Largertablesslowtriggerperformance;4)Highconcurrencycancausetriggercontention;5)M

MySQL: Is it safe to store BLOB?MySQL: Is it safe to store BLOB?May 14, 2025 am 12:07 AM

Yes,it'ssafetostoreBLOBdatainMySQL,butconsiderthesefactors:1)StorageSpace:BLOBscanconsumesignificantspace,potentiallyincreasingcostsandslowingperformance.2)Performance:LargerrowsizesduetoBLOBsmayslowdownqueries.3)BackupandRecovery:Theseprocessescanbe

MySQL: Adding a user through a PHP web interfaceMySQL: Adding a user through a PHP web interfaceMay 14, 2025 am 12:04 AM

Adding MySQL users through the PHP web interface can use MySQLi extensions. The steps are as follows: 1. Connect to the MySQL database and use the MySQLi extension. 2. Create a user, use the CREATEUSER statement, and use the PASSWORD() function to encrypt the password. 3. Prevent SQL injection and use the mysqli_real_escape_string() function to process user input. 4. Assign permissions to new users and use the GRANT statement.

MySQL: BLOB and other no-sql storage, what are the differences?MySQL: BLOB and other no-sql storage, what are the differences?May 13, 2025 am 12:14 AM

MySQL'sBLOBissuitableforstoringbinarydatawithinarelationaldatabase,whileNoSQLoptionslikeMongoDB,Redis,andCassandraofferflexible,scalablesolutionsforunstructureddata.BLOBissimplerbutcanslowdownperformancewithlargedata;NoSQLprovidesbetterscalabilityand

MySQL Add User: Syntax, Options, and Security Best PracticesMySQL Add User: Syntax, Options, and Security Best PracticesMay 13, 2025 am 12:12 AM

ToaddauserinMySQL,use:CREATEUSER'username'@'host'IDENTIFIEDBY'password';Here'showtodoitsecurely:1)Choosethehostcarefullytocontrolaccess.2)SetresourcelimitswithoptionslikeMAX_QUERIES_PER_HOUR.3)Usestrong,uniquepasswords.4)EnforceSSL/TLSconnectionswith

MySQL: How to avoid String Data Types common mistakes?MySQL: How to avoid String Data Types common mistakes?May 13, 2025 am 12:09 AM

ToavoidcommonmistakeswithstringdatatypesinMySQL,understandstringtypenuances,choosetherighttype,andmanageencodingandcollationsettingseffectively.1)UseCHARforfixed-lengthstrings,VARCHARforvariable-length,andTEXT/BLOBforlargerdata.2)Setcorrectcharacters

See all articles

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

SAP NetWeaver Server Adapter for Eclipse

SAP NetWeaver Server Adapter for Eclipse

Integrate Eclipse with SAP NetWeaver application server.

MinGW - Minimalist GNU for Windows

MinGW - Minimalist GNU for Windows

This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

ZendStudio 13.5.1 Mac

ZendStudio 13.5.1 Mac

Powerful PHP integrated development environment

mPDF

mPDF

mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),