I am trying to use a MERGE statement to insert or delete rows from a table, but I only want to act on a subset of those rows. The documentation for MERGE has a pretty strongly worded warning: It ...
I am attempting a single column merge between two tables. The first table (VisitorSession) has 40,000,000 rows. The second (ShoppingCart) has 9,000,000 rows. In my development environment, the query ...
The target table to which I'm trying to merge the data has ~660 columns. The code for the merge: MERGE TBL_BM_HSD_SUBJECT_AN_1 AS targetTable USING ( SELECT * FROM ...
I have a table test having columns id which primary key and auto incremented and name. I want to insert a new record if annd only if there are no records.For example input is id=30122 and name =john ...