Updating record through cursor dating services in charleston s c
I am trying to use a for-loop cursor to update more than one row when the parent value is updated, at present it only updates one row, yet a message I put in cursor shows the different values being stepped through in the cursor.
Here is an example cursor from tip Simple script to backup all SQL Server databases where backups are issued in a serial manner: DECLARE @name VARCHAR(50) -- database name DECLARE @path VARCHAR(256) -- path for backup files DECLARE @file Name VARCHAR(256) -- filename for backup DECLARE @file Date VARCHAR(20) -- used for file name SET @path = 'C:\Backup\' SELECT @file Date = CONVERT(VARCHAR(20), GETDATE(),112) DECLARE db_cursor CURSOR FOR SELECT name FROM sysdatabases WHERE name NOT IN ('master','model','msdb','tempdb') OPEN db_cursor FETCH NEXT FROM db_cursor INTO @name WHILE @@FETCH_STATUS = 0 BEGIN SET @file Name = @path @name '_' @file Date '.In the example above we tested whether the value of the @@FETCH_STATUS variable was 0 in order to determine whether the cursor should continue to process the set of records.In our basic example we used the FETCH NEXT statement to move the cursor to whichever record was the next one in the result set.An SQL postfix clause is positioned in the second position and will be appended to the SELECT statement, following the where clause.The SQL postfix clause is most commonly used for clauses such as ORDER BY. The order of values should be in the same order as the fields.
An SQL prefix clause is positioned in the first position and will be inserted between the SELECT keyword and the SELECT COLUMN LIST.