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CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as <select_list>, IN, WHERE, ORDER BY, and HAVING. Transact-SQL syntax conventions.
Learn how to use the SQL CASE expression to check conditions and return values like an if-then-else statement. See syntax, examples and a demo database.
28 lut 2023 · CASE w SQL możemy wykonać na dwa sposoby. Poniżej przedstawiam schematy działania instrukcji. Pierwsza konstrukcja CASE polega na przypisaniu wyniku do wartości. CASE wartość_lub_nazwa_kolumny. WHEN wartość_1 THEN wynik_1. WHEN wartość_2 THEN wynik_2.
Here's a simple solution to the nested "Complex" case statment: --Nested Case Complex Expression. case when datediff(dd,Invdate,'2009/01/31')+1 >150 then 6 else. case when datediff(dd,Invdate,'2009/01/31')+1 >120 then 5 else. case when datediff(dd,Invdate,'2009/01/31')+1 >90 then 4 else.
20 kwi 2021 · In the T-SQL scripting language, you can use the SQL CASE statement to evaluate a condition and return one or more result expressions. This SQL Tutorial will teach you when and how you can use CASE in T-SQL statements.
28 cze 2024 · Możemy użyć CASE z UPDATE. Poniżej znajduje się przykładowy kod MS-SQL: UPDATE Guru99 SET Tutorial_Name = ( CASE WHEN Tutorial_Name = 'SQL' THEN 'Structured Query language.' WHEN Tutorial_Name = 'PL/SQL' THEN 'Oracle PL/SQL' WHEN Tutorial_Name = 'MSSQL' THEN 'Microsoft SQL.' WHEN Tutorial_Name = 'Hadoop' THEN 'Apache Hadoop.' END )
26 cze 2023 · The SQL CASE statement specifies a conditional expression to perform different actions depending on the input expression value. The syntax for the CASE statement in a SQL database is: CASE expression. WHEN value1 THEN result1. WHEN value2 THEN result2. ... WHEN valueN THEN resultN. ELSE defaultValue. END.
