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15 wrz 2008 · From this link, we can understand IF THEN ELSE in T-SQL: IF EXISTS(SELECT * FROM Northwind.dbo.Customers WHERE CustomerId = 'ALFKI') PRINT 'Need to update Customer Record ALFKI' ELSE PRINT 'Need to add Customer Record ALFKI' IF EXISTS(SELECT * FROM Northwind.dbo.Customers WHERE CustomerId = 'LARSE') PRINT 'Need to update Customer Record LARSE ...
28 maj 2024 · In this article, we explored different options for executing IF-THEN logic in a SQL SELECT statement. These options include using CASE , IIF() , and CHOOSE() . Furthermore, if we want a query that’s used in almost every dialect, we must choose the CASE statement.
23 lis 2012 · select if(column_name = "value", "value_1", "value_2") as column_name from table_name; or. select (case when column_name = "value" then 'value_1' else 'value_2' end) as column_name from table_name;
20 gru 2013 · Instrukcja IF ELSE w sekcji SELECT wygląda bardzo podobnie do zaprezentowanych wcześniej. Tu jednak mała niespodzianka. O ile odpowiednik IF w SQL Server znacząco się różni, o tyle ELSE jest bardzo podobne, a co za tym idzie, chaba bardziej intuicyjne. Przyjrzyjmy się zatem przykładowej instrukcji.
30 paź 2023 · The SQL IF statement in SELECT queries is utilized to introduce conditional logic, allowing for more dynamic and flexible data retrieval. Essentially, it lets you specify conditions to dictate which data should be fetched or how it should be displayed.
3 wrz 2024 · Imposes conditions on the execution of a Transact-SQL statement. The Transact-SQL statement that follows an IF keyword and its condition is executed if the condition is satisfied: the Boolean expression returns TRUE.
26 wrz 2023 · How do I perform an IF...THEN in an SQL SELECT? If you've ever wondered how to add a pinch of decision-making magic to your SQL queries, you're in for a treat. Today, I'm your guide on a journey into the realm of SQL's IF...THEN magic within a SELECT statement.
