i did create the below tables

create table one (v_id int not null primary key generated always as identity(start with 1, increment by 1), v_date date, cs_cr char (1) default 's' constraint cscr check (cs_cr in('s','r')), total decimal (5) )

create table two (v_id int not null primary key generated always as identity(start with 1, increment by 1), one_v_id inf foreign key references one(v_id), prd_code int foreign key references prd(prd_code), qty double, uom int foreign key references uom(uom_code), rate decimal (3) )

create table three (v_id int not null primary key generated always as identity(start with 1, increment by 1), one_v_id int, one_v_date, two_v_id int, prd_code int ,qty double)

after create i want to know hw to create a single triger to insert/update [on change] values from "one", "two" to "three".

column in table three value from table(column)
v_id should be auto generated.
one_v_id one(v_id)
one_v_date one(v_date)
two_v_id two(v_id)
prd_code two(prd_code)
qty two(qty)

it could be found that the above table are without schema. if it is created with schema then hw to write a trigger.

Prakash





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