Change column data type sql

Sql change column types

ALTER TABLE table_name
ALTER COLUMN column_name datatype;

-- Example
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);

Sql server alter column

ALTER TABLE table_name 
ALTER COLUMN column_name new_data_type(size);

Source: sqlservertutorial.net

Sql alter type of column

ALTER TABLE TableName
MODIFY COLUMN ColumnName DataType;

Source: stackoverflow.com

T-SQL Alter the column data type

ALTER TABLE dbo.MyTable ALTER COLUMN MyColumn VARCHAR(20) NOT NULL;

Source: stackoverflow.com

Change column data type sql

ALTER TABLE TableName 
ALTER COLUMN ColumnName NVARCHAR(200) [NULL | NOT NULL]

Source: stackoverflow.com

Alter column type

ALTER TABLE schema.table
    ALTER COLUMN column
    DROP DEFAULT;
ALTER TABLE schema.table
    ALTER COLUMN column TYPE INTEGER[]
    USING array[column]::INTEGER[];
ALTER TABLE schema.table
    ALTER COLUMN column SET DEFAULT '{}';

Source: stackoverflow.com

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