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I'd like to write a SELECT statement that uses just one test to return columns with no value (null, empty, or all spaces). I thought this would work: SELECT column_name from table_name WHERE column_name NOT LIKE '%_%';
Can anyone point out how to check if a select query returns non empty result set? For example I have next query: SELECT * FROM service s WHERE s.service_id = ?; Should I do something like next: ISNULL(SELECT * FROM service s WHERE s.service_id = ?) to test if result set is not empty?
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.
26 lut 2016 · The easiest way to do this would be to do the column in the query rather than the resulting data model table. Hit the Add Custom Column there and the code would be. if Text.Contains([ColumnName], "A") then "A" else "B". If you want to do it in DAX it's a bit more messy.
30 paź 2023 · It can be combined with other functions to mimic an SQL if statement in select, enabling you to specify various outcomes and choose among them based on a specified condition or index, thus making it possible to render results based on conditional logic directly within a SELECT statement.
9 lut 2009 · Handling the Issue of NULL and Empty Values. Then let’s try to handle the record having the NULL value and set as a new value the string “NewValue” for the result set of our select statement. SQL Server provides 2 functions for doing this; (i) the ISNULL; and (ii) the COALESCE.
31 sty 2024 · In this article let us discuss in detail, how to check if a column is Empty or NULL in SQL Server, with examples and different methods. Checking if a Column is Empty or NULL. In a Table Column sometimes there can be no actual or valid data and it could be NULL or Empty (”) or some space value saved.
