Search results
The NULLIF function will convert any column value with only whitespace into a NULL value. Works for T-SQL and SQL Server 2008 & up. SELECT [column_name] FROM [table_name] WHERE NULLIF([column_name], '') IS NULL
16 wrz 2016 · 1. Use COALESCE which is shorthand for a CASE expression: COALESCE(expression1, expression2, ..., expressionN) is shorthand for. CASE. WHEN (expression1 IS NOT NULL) THEN expression1. WHEN (expression2 IS NOT NULL) THEN expression2. ... ELSE expressionN. END. therefore you can use. SELECT ParentOrderNumber, clientname,
select sum(case when Column_1 is null then 1 else 0 end) as Column_1, sum(case when Column_2 is null then 1 else 0 end) as Column_2, sum(case when Column_3 is null then 1 else 0 end) as Column_3, from TestTable
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.
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. 2. Using CASE. The CASE statement acts as a logical IF-THEN-ELSE conditional statement.
2 cze 2023 · The CASE statement allows you to perform an IF-THEN-ELSE check within an SQL statement. It’s good for displaying a value in the SELECT query based on logic that you have defined. As the data for columns can vary from row to row, using a CASE SQL expression can help make your data more readable and useful to the user or to the application.
1 wrz 2019 · You can use this after add column in power query editor: if ColumnA = 'yourvalue' then ColumnA. Else ColumnC . This save your column before do all on data 🙂 . if this help you mark this as a solution! Thank you
