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Simple SELECT used for example */įROM Id = Set variable(s) to the next value returned from iterator this is needed otherwise the cursor will loop infinitely. * Write operations to perform in a loop here. * Cursor to iterate rows and assign values to variables */įETCH NEXT FROM m圜ursor INTO global variable will be 1 / true until there are no more rows to fetch */ PRINT this is important, as it tells SQL Server to get the next record and store the column value into the variableįETCH NEXT FROM rowCursor INTO this will release any memory used by the cursorĪ simple cursor syntax, operating on a few example test rows: /* Prepare test data */ and storing the value into a variable called NEXT FROM rowCursor INTO start our loop and keep going until we have no more records to loop through now we will initialize the cursor by pulling the first row of data, in this example the column, this is the query that we want to loop through record by record here we are creating our cursor, as a local cursor and only allowingĭECLARE rowCursor CURSOR LOCAL FAST_FORWARD FOR However in some special cases you may need to loop through your data record by record and perform some action. Normally you would want to avoid using cursors as they can have negative impacts on performance. String Aggregate functions in SQL Server.SQL Server Evolution through different versions (2000 - 2016).Retrieve Information about your Instance.
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Retrieve information about the database.Microsoft SQL Server Management Studio Shortcut Keys.Export data in txt file by using SQLCMD.Delimiting special characters and reserved words.Once again thanks a lot and Happy new year!Mohammad Azam Getting started with Microsoft SQL Server Thanks to both of you I will check it and let you know. Refer my answer here to plan is Planning to fail DECLARE varchar(200)SET = 'Users'DECLARE varchar(200)DECLARE column_cursor CURSOR FORSELECT COLUMN_NAME FROM information_lumns WHERE table_name = column_cursorFETCH NEXT FROM column_cursor - 1st fetchWHILE = 0BEGIN FETCH column_cursor INTO - 2nd fetch Print column_cursorDEALLOCATE column_cursorJust move your print statement before the 2nd fetch and it should be fine. That's why you are missing the 1st column. I finally used a while loop and got a small solution.Mohammad Azam madhivananĬan you give more details on what you are trying to do?MadhivananFailing to plan is Planning to failĪzamsharpyour original sproc is fine, with the exception of the print statement. Your approach does not work as I want to start picking first column and goes to the end of the columns list. Hi, Well I want the cursor to start from the first row and goes till the end. OPEN column_cursor FETCH FIRST FROM column_cursorWHILE = 0 BEGIN FETCH column_cursor INTO Print NEXT FROM column_cursorEND Here is my SPROC: DECLARE varchar(200) SET = 'Users'DECLARE varchar(200) DECLARE column_cursor CURSOR FOR SELECT COLUMN_NAME FROM information_lumns WHERE table_name = column_cursor FETCH NEXT FROM column_cursorWHILE = 0 BEGIN FETCH column_cursor INTO Print column_cursor DEALLOCATE column_cursorMohammad Azam Srinika I made a cursor and its not picking up the first row do you any ideas whats wrong. We've got lots of great SQL ServerĮxperts to answer whatever question you can come up with.