Can we change the datatype of a column in SQL?

How do I change the datatype of a column in SQL?

To change the data type of a column in a table, use the following syntax:1SQL Server / MS Access: ALTER TABLE table_name. ALTER COLUMN column_name datatype;2My SQL / Oracle (prior version 10G): ALTER TABLE table_name. MODIFY COLUMN column_name datatype;3Oracle 10G and later: ALTER TABLE table_name.

Can we change data type in SQL?

Using SQL server You need to select the column whose data type you want to modify. In the Column Properties, you need to click the grid cell to change the Data Type property and then choose the data type from the appeared drop-down list. Now, click Savetable on the File menu to save the changes.

Can we change datatype of a field?

Change data types in Datasheet view Select the field (the column) that you want to change. On the Fields tab, in the Properties group, click the arrow in the drop-down list next to Data Type, and then select a data type. Save your changes.

Can we change datatype type of column in SQL without losing data?

In this article, I will explain how to alter a database table column without dropping the table with simple example. First of all we will create a table named tblManager using the following query. Notice that the Salary column's datatype is nvarchar.