SQL query problem
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by Pankaj
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Published on 2010-05-25T09:36:39Z
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2010/05/25
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mysql
Hello All
I have 2 tables Project and ProjectList like this
Project
ProjectID
Name
ProjectListID - allow null
In ProjectList
ProjectListID
ProjName
Now what i need here, i want only those recoed from ProjectList table which ProjectListID not in Project table. I made a query but it is taking lot of time to execute.
select * FROM projectslist pl where pl.ProjectsListID not in (SELECT p.ProjectsListID FROM project p where (p.ProjectsListID is not null and p.ProjectsListID <>0))
Please help me to create optimize query. I am using My SQL.
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