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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
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 · In this article, we explored different options for executing IF-THEN logic in a SQL SELECT statement. These options include using CASE , IIF() , and CHOOSE() . Furthermore, if we want a query that’s used in almost every dialect, we must choose the CASE statement.
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
31 sty 2024 · 1. IS NULL. This key word returns any records with NULL value in the column specified in a Table. Syntax: WHERE {COLUMN NAME} IS NULL. Example: Select * from StudentsInfo . WHERE ContactPhone IS NULL. The above query checks for null values in the column ‘ContactPhone‘ from ‘StudenetsInfo‘ table. Below is the output. Output: IS NULL example output.
4 lip 2024 · The IF statement is an important building block for adding conditional logic to your Power Query transformations. It allows you to test a value with a specified condition, leading to two possible results (also known as a conditional statement). The if formula first checks if a condition is met.
The IF statement for stored programs implements a basic conditional construct. There is also an IF ()function, which differs from the IFstatement described here. See Section 14.5, “Flow Control Functions”. The IF statement can have THEN, ELSE, and ELSEIF clauses, and it is terminated with END IF. If a given search_condition evaluates to ...
