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How to change mariadb column type from varchar to blob or varchar2(500)
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The syntax to modify a column in a table in MariaDB (using the ALTER TABLE statement) is: ALTER TABLE table_name MODIFY column_name column_definition [ FIRST | AFTER column_name ]; table_name. The name of the table to modify.
SQL query to change the column type in MySQL Server. We can use ALTER TABLE MODIFY COLUMN statement to change the datatype of the column. The syntax to change the datatype of the column is following.
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.
A column's default value is part of its definition, but can be modified separately from other aspects of the definition. To change a default value, use ALTER col_name SET DEFAULT : ALTER TABLE mytbl ALTER j SET DEFAULT 1000; Default values must be constants.
You need an alter table query
ALTER TABLE table_name
MODIFY column_name column_definition
Example:
ALTER TABLE websites
MODIFY host_name varchar(50);
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