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Asked by Abdul Last Modified
Answer In SQL Server, you can select all columns from a table except one by explicitly specifying the columns you want in your SELECT statement. If you want to exclude a specific column, you can list all the other columns individually. Here's an example:
Let's assume you have a table named YourTable with columns Column1, Column2, Column3, and you want to select all columns except Column2. The query would look like this:
SELECT Column1, Column3 FROM YourTable; In this example, Column2 is excluded from the result set, and only Column1 and Column3 are selected.
If you have a large number of columns and want to avoid listing them individually, you can dynamically generate the column list using system tables or views to retrieve the column names. Here's an example using the INFORMATION_SCHEMA.COLUMNS view:
DECLARE @ExcludeColumn NVARCHAR(255) = 'Column2'; DECLARE @TableName NVARCHAR(255) = 'YourTable'; DECLARE @Columns NVARCHAR(MAX); SELECT @Columns = STRING_AGG(COLUMN_NAME, ', ') FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = @TableName AND COLUMN_NAME <> @ExcludeColumn; DECLARE @DynamicSQL NVARCHAR(MAX); SET @DynamicSQL = 'SELECT ' + @Columns + ' FROM ' + @TableName; EXEC sp_executesql @DynamicSQL; In this dynamic SQL example, the INFORMATION_SCHEMA.COLUMNS view is used to get the column names for the specified table, excluding the column specified in @ExcludeColumn. The STRING_AGG function concatenates the column names into a comma-separated list, which is then used to build a dynamic SQL statement. The sp_executesql stored procedure executes the dynamic SQL statement.
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