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How do I iterate a table variable in SQL Server?
DECLARE @tempCategories TABLE ( Id INT, — Make sure, you have one unique column in the table CategoryName NVARCHAR(500), Processed INT DEFAULT 0 — This is the main column that will help us in looping through the table. ) Important: Make sure, you have one unique column in the table.
What is the difference between pairs and Ipairs?
pairs() and ipairs() are functions that can be used with a for loop to go through each element of an array or dictionary without needing to set starting or ending points. pairs() is used with dictionaries, and ipairs() is used with arrays. The “i” in ipairs() stands for “index.”
How to loop through a table variable in SQL Server?
Add an identity to your table variable, and do an easy loop from 1 to the @@ROWCOUNT of the INSERT-SELECT. KM. KM. Believe it or not, this is actually more efficient and performant than using a cursor.
How to use cursor to loop through table variable?
If possible, just treat this as a set and consider if you can rewrite the –Some operation as a single batch. It may require you to get smart with joins to other tables based on the date ranges – or perhaps you could split the date range further into StartDate and EndDate columns before doing your additional processing which might help with joins
How to see Table Records in while loop?
Let’s try to execute the while loop and iterate the table records one by one. The above table has the identity column values in the sequence order. It can be iterated and you can see the results. It has executed successfully and you can see all the records in the table.
How to execute while loop in SQL Server?
Lets create the Products. Lets insert some records into the products table. After several records are inserted, let’s see all the records. Let’s try to execute the while loop and iterate the table records one by one. The above table has the identity column values in the sequence order.