I want to alter a table column to be nullable. I have used:
ALTER TABLE Merchant_Pending_Functions Modify NumberOfLocations NULL
This gives an error at Modify
. What is the correct syntax?
It means, if a column nullable type is defined as 0, it means it cannot be NULL, every time it will have some value.
Example# When creating tables it is possible to declare a column as nullable or non-nullable. CREATE TABLE MyTable ( MyCol1 INT NOT NULL, -- non-nullable MyCol2 INT NULL -- nullable ) ; By default every column (except those in primary key constraint) is nullable unless we explicitly set NOT NULL constraint.
1) Select the table in which you want to modify changes. 2) Click on Actions.. ---> select column ----> add. 3) Now give the column name, datatype, size, etc.
Assuming SQL Server
(based on your previous questions):
ALTER TABLE Merchant_Pending_Functions ALTER COLUMN NumberOfLocations INT NULL
Replace INT
with your actual datatype.
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With