Cómo agregar restricción predeterminada en mysql
ALTER TABLE "name_table" ALTER "name_column"
SET DEFAULT value_default;
icy_milktea27
ALTER TABLE "name_table" ALTER "name_column"
SET DEFAULT value_default;//Sql Server
//Add a table
ALTER TABLE clients ADD Points INT DEFAULT 0
//Edit an existing table
ALTER TABLE clients ADD CONSTRAINT points DEFAULT 0 FOR Points