Filtering the Data from Tables
Explore filtering data in T-SQL by using the WHERE clause to specify conditions with comparison operators. Learn to retrieve rows based on exact matches, NULL checks, pattern matching with LIKE, and combining conditions using AND, OR, and NOT operators to refine query results.
We'll cover the following...
We'll cover the following...
Sometimes, we need to filter the table to find data that meets certain criteria. To retrieve the data we need, we can add a WHERE clause to our SELECT statement:
SELECT Column1, Column2, Column3
FROM TableSchema.TableName
WHERE [Condition]
The condition is a boolean expression (a comparison result). Similar to other programming languages, comparisons in T-SQL are made with the help of comparison operators.
Comparison operations
T-SQL ...