Question

I am trying to search employees based on their code and department.

I triggered a query using IN operator which has 1200 employee codes. When i executed the query I got an exception (‘Maximum 1000 records allowed in IN ‘).

Can anyone help me out with this issue.

Answer 1

Many DBMS don’t allow a query like

SELECT * FROM table WHERE col IN (...) 

with more than 1,000 values in the list. Maybe it is possible to split it up using chunks of less than 1,000 values:

SELECT * FROM table WHERE col IN (...) OR col IN (...) 

or

SELECT * FROM table WHERE col IN (...) UNION SELECT * FROM table WHERE col IN (...) 

(Although it would not make sense and is unlikely to work).

Otherwise, you should store your values in a temporary table and use a JOIN instead. Where do you get your 1,200 codes from — they don’t happen to be in the same database? 🙂