how to delete columns
To delete columns by using Table Designer. In Object Explorer, right-click the table from which you want to delete columns and choose Design. Right-click the column you want to delete and choose Delete Column from the shortcut menu. If the column participates in a relationship (FOREIGN KEY or PRIMARY KEY), a message prompts you to confirm the deletion of the selected columns and their relationships.
The Excelâs Go To Special Command can help you quickly select the multiple blank columns, and then you can delete them at once. 1. Select the range containing the blank columns that you want to remove. 2. Click Home > Find & Select > Go To Special, in the Go To Special dialog box, check the Blanks option. 3. And then click OK, all of the blank columns of the selected range are highlighted. 4. Then click Home > Delete > Delete Sheet Columns, the blank rows have been deleted from the selected range.