Summary: From this post you will learn how to use CURSOR statement in SQL. What is Database CURSOR: A SQL Server cursor is a set of T-SQL logic to loop over a predetermined number of rows one at a time. The purpose for the cursor may be to update one row at a time or perform an administrative process such as SQL Server database backups in a sequential manner. SQL Server cursors are used for Development, DBA and ETL processes. Why Use a Cursor in SQL Server: Although using an INSERT , UPDATE or DELETE statement to modify all of the applicable data in one transaction is generally the best way to work with data in SQL Server, a cursor may be needed for: Iterating over data one row at a time. Completing a process in a serial manner such as SQL Server database backups. Updating data across numerous tables for a specific account. Correcting data with a predefined set of data as the input to the cursor. When to Use a SQL Server Cursor: The ...
SQL Server SQL Server is a relational database management system (RDBMS) developed by Microsoft. SQL Server supports a wide variety of transaction processing, business intelligence and analytics applications in corporate IT environments. SQL Server supports ANSI SQL, which is the standard SQL (Structured Query Language) language. However, SQL Server comes with its own implementation of the SQL language, T-SQL. Why SQL Server? Microsoft SQL Server is a comprehensive database server and information platform offering a complete set of enterprise-ready technologies and tools that help people derive the most value from information at the lowest total-cost-of-ownership. Enjoy high levels of performance, availability, and security; employ more productive management and development tools; and deliver pervasive insight with self-service business intelligence (BI). A complete and integrated platform, Microsoft SQL Server brings it all together to get more value out of existing IT skills and asse...