типы столбцов смены SQL
ALTER TABLE table_name
ALTER COLUMN column_name datatype;
-- Example
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);
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ALTER TABLE table_name
ALTER COLUMN column_name datatype;
-- Example
ALTER TABLE product
ALTER COLUMN description VARCHAR(250);ALTER TABLE table_name
ALTER COLUMN column_name new_data_type(size);
alter table my_table alter column my_column int null