For example:
The first table: (id char(5), name varchar2(20))
The second table: (id char(5), name varchar2(20), age int)
The first table: (id char(5), name varchar2(20), age int, pc char(6))
......
I may need such tables more than 20.
if can inheret, I'll not care too much about the table name or type. Otherwise, if I should add one column into every table, that should be a hard work for me.
tks.
The first table: (id char(5), name varchar2(20))
The second table: (id char(5), name varchar2(20), age int)
The first table: (id char(5), name varchar2(20), age int, pc char(6))
......
I may need such tables more than 20.
if can inheret, I'll not care too much about the table name or type. Otherwise, if I should add one column into every table, that should be a hard work for me.
tks.