#How to create a stored procedure in navicat? The following is a detailed introduction to the operations involved.
Recommended tutorial: MySQL introductory video
##1. Use Navicat Premium to open the Create Function Wizard and operate : Connection name - database - function - new functionBEGIN DECLARE t_error INTEGER DEFAULT 0; DECLARE CONTINUE HANDLER FOR SQLEXCEPTION SET t_error=1; # 保证数据一致性 开启事务 START TRANSACTION; # 获取需同步数据的时间节点(3个月前的第一天) # 即当前日期 2018-07-10 @upmonth 日期 2018-04-01 8 SET @upmonth= DATE_ADD(CURDATE() - DAY (CURDATE()) + 1, INTERVAL - 3 MONTH); # 迁移数据语句 SET @sqlstr=CONCAT(‘INSERT INTO fd_aseet_record_back_3_6 SELECT * FROM fd_asset_record WHERE type in (3, 6) AND calendar_date < ?‘); # 删除数据语句 SET @delsqlstr=CONCAT(‘DELETE FROM fd_asset_record WHERE type in (3, 6) AND calendar_date < ?‘); #执行数据迁移 PREPARE _fddatamt FROM @sqlstr; EXECUTE _fddatamt USING @upmonth; DEALLOCATE PREPARE _fddatamt; #执行迁移后的数据删除 PREPARE _fddatadel FROM @delsqlstr; EXECUTE _fddatadel USING @upmonth; DEALLOCATE PREPARE _fddatadel; IF t_error = 1 THEN ROLLBACK; #语句异常-回滚 ELSE COMMIT; #提交事务 END IF; END4. Save - enter the stored procedure name - OK
## 5. Select the stored procedure name - run the function - view the results
Extended information
Stored Procedure (Stored Procedure) is a A set of SQL statements to complete a specific function. It is stored in the database and is permanently valid after compilation. The user executes it by specifying the name of the stored procedure and giving parameters (if the stored procedure has parameters).Stored procedure is an important object in the database. Mainly divided into the following categories.
1 System stored procedureStarting with sp_, it is used to set various settings of the system, obtain information, and related management work.
2 Local Stored ProcedureA user-created stored procedure is a stored procedure that is created by the user and completes a specific function. In fact, the generally referred to as a stored procedure is Refers to a local stored procedure.
3 Temporary stored procedureIt is divided into two types of stored procedures:
One is the local temporary stored procedure, with the pound sign (#) as its The first character of the name, the stored procedure will become a local temporary stored procedure stored in the tempdb database, and only the user who created it can execute it;
The second is a global temporary stored procedure, with two Starting with a pound sign (##), the stored procedure will become a global temporary stored procedure stored in the tempdb database. Once the global temporary stored procedure is created, any user connected to the server can execute it without the need for specific permissions.
4 Remote Stored ProceduresIn SQL Server2005, remote stored procedures (Remote Stored Procedures) are stored procedures located on the remote server. Distributed queries can usually be used and EXECUTE command to execute a remote stored procedure.
5 Extended Stored ProceduresExtended Stored Procedures are stored procedures that users can write using external programming languages, and the names of extended stored procedures usually start with xp_begins.
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When evaluating database tools, you should focus on performance and scalability, data consistency and integrity, security and compliance. 1. Performance and scalability Query response time and system load through performance testing. 2. Data consistency and integrity ensure data accuracy and integrity and avoid business problems. 3. Security and compliance protect data security and comply with laws and regulations.

Alternatives to Navicat include DBeaver, HeidiSQL, and pgAdmin. 1.DBeaver is open source, supports multiple databases, and is suitable for managing multiple databases. 2.HeidiSQL is free and lightweight, suitable for MySQL and MariaDB. 3.pgAdmin is specially designed for PostgreSQL, and is powerful and suitable for in-depth management.

Alternatives to Navicat include DBeaver and HeidiSQL. 1) DBeaver is known for its powerful data model design and cross-platform support. 2) HeidiSQL is loved by developers for its lightweight and fast response.

Navicat simplifies database management tasks through a graphical interface. 1) Supports multiple database systems, such as MySQL, PostgreSQL, etc. 2) Provide query builder and data migration tools to simplify complex operations. 3) Use connection pooling technology to ensure performance in high concurrency environments.

The main difference between Navicat's CommunityEdition and CommercialVersions is the functionality and usage scenarios. CommunityEdition provides basic database management functions that are suitable for basic needs; CommercialVersions includes advanced functions, such as data model design and automation tasks, suitable for professional needs.

Navicat is a powerful and user-friendly database management tool for beginners and veterans. 1. It supports multiple database types and provides unified interface management. 2. Communication with the database through JDBC or ODBC to simplify operations. 3. Provide SQL editing and optimization tools to improve query efficiency. 4. Support data migration and model design to improve work efficiency.

Navicat is not free, it offers a 30-day trial and paid version. 1. The trial version allows users to experience all functions and a license is required after the expiration of the period. 2. The paid version has personal, corporate and educational licenses, providing full functionality and support.

Navicat is an integrated database development and management tool designed to simplify database operations. 1. Connection management: Supports connecting multiple database servers at the same time. 2. Data operation: Perform SQL queries, data import and export, etc. through GUI. 3. Data model design: Provide visual tools to design and optimize database structure. 4. Automation and scripting: Supports automated tasks and script execution to improve efficiency.


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