create table catalogo
(nodecuenta varchar (12) primary key,
descripcion varchar (40) not null)
create table catalogo
(nodecuenta varchar (12) primary key,
descripcion varchar (40) not null)
As follows:
Do not forget to always mention the table and the field to be modified:
ALTER TABLE catalogo MODIFY COLUMN descripcion VARCHAR(70);
Try this code
ALTER TABLE catalogo
CHANGE COLUMN descripcion
descripcion VARCHAR(70) NOT NULL;