-- 1. List the teachers who have NULL for their department. SELECT name FROM teacher WHERE dept IS NULL; -- 2. Note the INNER JOIN misses the teachers with no department and the departments with no ...
IS NULL and IS MISSING are predicates that test for a missing value. IS NULL and IS MISSING are used in the WHERE, ON, and HAVING expressions. Each predicate resolves to true if the sql-expression's ...
If you set ANSI_NULLS off in SQL Server, you can create expressions that use the equality operator to compare to null. However, you can't prevent different connections from setting null options for ...
Abstract: The lack of information within relational databases expressed as NULL values presents a problem in ensuring the quality of data and the information retrieved by SQL queries. This is so ...
just some info for anyone else who's not a sql guru:<BR><BR>i did the following selection on a table:<BR><BR>SELECT * FROM Table WHERE myField <> 'active'<BR><BR>the values in that colum are a mix of ...
I have to write a query on a positively atrocious table (this is with MSSQL 2005). Basically, multiple "lists" are stored in a single gigantic table called "UserData". I'm building the SQL statement ...
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