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15 wrz 2008 · Once you figure out how it works, you can convert three results to two results by deciding the behavior of null. E.g. this would treat null as not saleable: SELECT CASE WHEN obsolete = 'N' OR instock = 'Y' THEN 'true' ELSE 'false' -- either false or null END AS saleable. Share.
2 mar 2017 · If you are checking conditions against multiple variables then you would have to go for multiple IF Statements, Each block of code will be executed independently from other blocks. IF(@Var1 Condition1) BEGIN /*Your Code Goes here*/ END IF(@Var2 Condition1) BEGIN /*Your Code Goes here*/ END IF(@Var3 Condition1) BEGIN /*Your Code Goes here*/ END
28 maj 2024 · We can use either a CASE statement or an IIF() function to implement IF-THEN logic in SQL. In this tutorial, we’ll explore how to implement IF-THEN logic in SQL across various dialects such as SQL Server, MySQL, and PostgreSQL.
30 paź 2023 · It can be combined with other functions to mimic an SQL if statement in select, enabling you to specify various outcomes and choose among them based on a specified condition or index, thus making it possible to render results based on conditional logic directly within a SELECT statement.
3 lip 2019 · SELECT OrderId FROM OrdersTable WHERE Product in ('ProductA', 'ProductB') group by orderid having count(distinct Product) = 2; This will give you those orders that include at least those two products. The orders might include other products as well.
20 sie 2024 · In this article, we’ll explore how to use the CASE statement with multiple conditions, providing simple examples that should work across most major relational database management systems (RDBMS s).
26 wrz 2023 · The IF...THEN statement in SQL is often used in conjunction with the CASE expression. The basic syntax goes like this: SELECT . column1, column2, ... CASE WHEN condition1 THEN result1. WHEN condition2 THEN result2. ... ELSE else_result. END AS alias_name. FROM . your_table; column1, column2, etc.:
