Sql Server Cursor Inside Cursor

Home SQL Server Stored Procedures SQL Server CURSOR SQL Server CURSOR Summary in this tutorial, you will learn how to use the SQL Server cursor to process a result set, one row at a time. SQL works based on set e.g., SELECT statement returns a set of rows which is called a result set.

Defines the attributes of a Transact-SQL server cursor, such as its scrolling behavior and the query used to build the result set on which the cursor operates.

A SQL Server cursor loops over a set number of rows one at a time to update data or perform DBA processes such as backups as an example.

I have declared a cursor inside another cursor. And for all set of outside cursor ID i want to check in the table used in the inside cursor.

The select statement inside the cursor shows the altered the way I need it, the same select statement after outside the cursor shows the same records but reverted back.

Transact-SQL cursors support forward-only static, keyset-driven, and dynamic cursors. The database API cursor models assume that static, keyset-driven, and dynamic cursors are always scrollable. When a database API cursor attribute or property is set to forward-only, SQL Server implements this as a forward-only dynamic cursor.

T-SQL Nested Cursor in SQL Server 2008 SQL developers can create nested cursor in SQL Server by defining an outer cursor and within the cursor code a new cursor is defined for each row in main cursor select. The inner cursor is created, executed, closed and deallocated each time in the outer cursor for each row.

The example T-SQL code shows how to iterate rows in matches and then fetch the track row for that track from the track table. Obviously it makes much more sense to simply do a JOIN , but this code is more to show nested cursor looping than do anything particularly useful.

One more question what version of sql server, because that will determine what we can use for creating the row numbers to replace your counter in the inner cursor.

I'm developing a complex T-SQL procedure which uses nested cursors or at least tries. Using the debugger it appears that FETCH_STATUS 0 for the first cursor and reads the first row then the