Subject | How to update data? |
---|---|
Author | W O |
Post date | 2011-04-05T15:46:08Z |
Hello everybody
I have a table PRODUCTS (Product_ID, Product_Name, LastDate)
A table MOVIMCAB (Movim_ID, Date) -- parent table
A table MOVIMDET (Movim_ID, Product_ID) -- child table
Each product can be several times in MOVIMDET
Tables MOVIMCAB and MOVIMDET can be relationated by the Movim_ID column.
What I need is:
- Each product having the last date, as found in MOVIMCAB
By example, if the date were 01/01/2010, 05/02/2010, 06/03/2010 then I need
that the column 'LastDate' of PRODUCTS have 06/03/2010
What I could to write for update the 'LastDate' column of the table PRODUCTS
with the last date in which that product can be found?
In other words, each product with its last date.
I use Firebird 2.1.3
Thanks in advance.
Walter.
[Non-text portions of this message have been removed]
I have a table PRODUCTS (Product_ID, Product_Name, LastDate)
A table MOVIMCAB (Movim_ID, Date) -- parent table
A table MOVIMDET (Movim_ID, Product_ID) -- child table
Each product can be several times in MOVIMDET
Tables MOVIMCAB and MOVIMDET can be relationated by the Movim_ID column.
What I need is:
- Each product having the last date, as found in MOVIMCAB
By example, if the date were 01/01/2010, 05/02/2010, 06/03/2010 then I need
that the column 'LastDate' of PRODUCTS have 06/03/2010
What I could to write for update the 'LastDate' column of the table PRODUCTS
with the last date in which that product can be found?
In other words, each product with its last date.
I use Firebird 2.1.3
Thanks in advance.
Walter.
[Non-text portions of this message have been removed]