WebSQL Server. The SQL Server ISNULL () function lets you return an alternative value when an expression is NULL: SELECT ProductName, UnitPrice * (UnitsInStock + ISNULL … Web4 jul. 2024 · If the IF statement contains an else statement, then a second group of SQL statements can be executed if the IF condition evaluates to false. The Transact-SQL …
SQL Server CASE Statement and CASE WHEN Examples
Web2 mrt. 2024 · Impone le condizioni per l'esecuzione di un'istruzione Transact-SQL. L'istruzione Transact-SQL che segue una parola chiave IF e le relative condizioni viene … Web1 mei 2024 · in this tutorial, i will show you how to use conditional statement in SELECT query. dianthus tros
MySQL IF Statement - MySQL Tutorial
WebThe simplest form of IF statement associates a Boolean expression with a sequence of statements enclosed by the keywords THEN and END IF. The sequence of statements … Web19 sep. 2024 · The Problem – Removing Duplicates in SQL Summary of Methods Method 1 – ROW_NUMBER Analytic Function Method 2: Delete with JOIN Method 3 – MIN or MAX Function Method 4 – DENSE_RANK Method 5 – Correlated Subquery with MIN or MAX Method 6: Use a Subquery with ANY Other Methods You Might Come Across Method 7: … WebThe following example will depict this point. select ename, job, sal, case when job = 'clerk' and sal < 1000 then '1' when job = 'clerk' and sal > 1000 then '2' when job = 'manager' … dianthus training wirral