Scenario: There are 2 oracle tables TEST1 and TEST2 containing 2 columns each : EMP_ID and EMAIL_ID. How will you update column EMAIL_ID of table TEST1 with the values of EMAIL_ID of table TEST2. The join condition to be used will be on EMP_ID.
Solution:
update test1 set test1.email_id = (select test2.email_id from test2 where test1.emp_id=test2.emp_id)
where
exists (select 1 from test2 where test1.emp_id=test2.emp_id)
Posts
negative regexp
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if you want to grep anything except foo, use grep -v or negative lookahead
echo -e 'foo\nbar\nboz'|grep -P '^(?!.*foo).*$' bar boz it is just so
beautiful ...
1 month ago
3 comments:
Maaza nahi aaya...
Not a gaurav like query.
Maaza nahi aaya...
Not a gaurav like query.
Thank you so much for providing and enlightening more aspects of Informatica that help in avoiding it getting damaged and becoming useless.
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