Hi,
I need an SQL query that will take data from one table, and place it into an existing table, without overwriting the records that already exist, defined by a unique field.
this is what i've got so far (feel free to correct if its not right (i am a beginner):
SELECT <Data/column i want> INTO <table to be modified
FROM <source table> WHERE ? ;
what is the most efficient code to place in the Where section. Thanks in advance to anyone who can bail me out.
Adam.
I need an SQL query that will take data from one table, and place it into an existing table, without overwriting the records that already exist, defined by a unique field.
this is what i've got so far (feel free to correct if its not right (i am a beginner):
SELECT <Data/column i want> INTO <table to be modified
FROM <source table> WHERE ? ;
what is the most efficient code to place in the Where section. Thanks in advance to anyone who can bail me out.
Adam.