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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.
SELECT CASE WHEN ColB = 'March' THEN (Select ColA FROM tablename WHERE ColB = 'January') END FROM tablename Or can be done without a CASE would be. SELECT (SELECT colA FROM tablename WHERE colB = 'January') FROM tablename WHERE colB = 'March' See example of second running here
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.
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).
23 sie 2024 · Here is the basic syntax of a Multiple CASE WHEN statement: SELECTcolumn1,column2,CASEWHENcondition1THENresult1WHENcondition2THENresult2...ELSEdefault_resultENDASnew_columnFROMyour_table; This construct proves invaluable in handling scenarios where more than one condition needs consideration.
2 cze 2023 · You can probably write two CASE statements to display it: SELECT CASE WHEN MOD(yourcolumn, 2)=0 THEN yourcolumn ELSE null END AS evenvalue, CASE WHEN MOD(yourcolumn, 2)=1 THEN yourcolumn ELSE null END AS oddvalue FROM yourtable; This will show even values in one column, odd values in another.
18 sty 2024 · CONTAINS is a SQL Server function to search for a word or phrase in one or more text columns using precise or fuzzy matching. Specifically, SQL CONTAINS is a predicate to use in the WHERE clause to perform full-text search. The column or columns to search in must be of character-based data types.
