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Which of the following can be used to remove rows from a table based on where condition?
So the delete statement is used to delete rows from a table using the where clause to select only the rows to be deleted. Always use a unique identifier to locate the rows that you need to delete. To delete all the rows in a table, always use TRUNCATE TABLE.
How to eliminate rows in SQL?
To delete every row in a table:
- Use the DELETE statement without specifying a WHERE clause. With segmented table spaces, deleting all rows of a table is very fast.
- Use the TRUNCATE statement. The TRUNCATE statement can provide the following advantages over a DELETE statement:
- Use the DROP TABLE statement.
How do you delete rows and columns in Excel?
On the Home tab, in the Cells group, click the arrow next to Delete, and then click Delete Table Rows or Delete Table Columns. You can also right-click one or more rows or columns, point to Delete on the shortcut menu, and then click Table Columns or Table Rows.
How to delete specific rows from DataTable Stack Overflow?
The correct way would be to call Remove() on the source DataTable – dtPerson.Rows.Remove(dr). If you are using the DataTable to update a table in a database server, @Steve has a better answer. You can mark rows as deleted, update rows, and add new rows all in a single loop.
How do you remove duplicates from a table in Excel?
Click anywhere in the table. On the Design tab, in the Tools group, click Remove Duplicates. In the Remove Duplicates dialog box, under Columns, select the columns that contain duplicates that you want to remove. You can also click Unselect All and then select the columns that you want or click Select All to select all of the columns.
How do I add rows and columns to an Excel table?
After you create an Excel table in your worksheet, you can easily add or remove table rows and columns. You can use the Resize command in Excel to add rows and columns to a table: Click anywhere in the table, and the Table Tools option appears. Click Design > Resize Table.