SQL将新行插入到现有表中，更改除一列外的所有列

Question

I have a table with 14 columns. The first column is Part #. I need to insert a new line and add different data to the other 13 columns if the data in column 10 is different.

For example:

Part #  Description Lead Time   Price 1 Price 2 Price 3 Min. Buy    Date    ATA
1693    SHORTY PLUG     045  $-      $-      $4.25  100 110612  STC
2617    DOME PLUG            045     $-      $-      $0.75   100    111912  CIS
2617    DOME PLUG            045     $-      $-      $0.50  100 91012   STC
2617    DOME PLUG            045     $-      $-      $0.50  100 91012   STD
2646    PLUG (BLACK 045  $-      $-      $6.75  100 91012   STC
2646    PLUG (BLACK)    045  $-      $-      $6.00  100 91012   STD

The key column is the "ATA" column. How would I add, say Part # 2646 which had an ATA Code of "CIS". The Part # is the only Column which will stay the same. I want to leave the other Rows in the table, just add another row with a Part # of 2646 with the rest of the data different.

I'm not very proficient in SQL, and have tried everything I can find on the Internet with no success. Thanks for your help.

Answer 1

Sounds like you just need a simple insert statement. Replace the values part with the actual values you want to add to your database table.

Insert into YOUR_TABLE ([Part #], [Description], [Lead Time], [Price 1], [Price 2], [Price 3], [Min. Buy], [Date], [ATA])
Values (OLD_PART_NO, NEW_DESCRIPTION, NEW_LEAD_TIME, NEW_PRICE_1, NEW_PRICE_2, NEW_PRICE_3, NEW_MIN_BUY, NEW_DATE, NEW_ATA)

Answer 2

If you need a table where you can have multiple items with the same part number but must vary on a second column and still want to prevent duplicates you need to edit your PRIMARY KEY to include both the Part # and the ATA columns like so:

ALTER TABLE [name]
DROP CONSTRAINT [pk_constraint_name] [or DROP PRIMARY KEY for MySQL]

ALTER TABLE [name]
ADD PRIMARY KEY([Part #],[ATA])

Or you could have another column be the primary key and then define a UNIQUE INDEX on those two columns, either would likely have the desired end result.