Merge joins are not currently part of the heuristics. • Batch-mode memory grant feedback: Previously, SQL Server took a cardinality estimate for a given T-SQL batch and then estimated the minimum ...

SQL Server developers must understand two things: the difference between inner and outer JOINs and the effect of NULLs upon these choices. This tip addresses both subjects.

SQL JOINs make it easy to find and fix missing data Your email has been sent Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this ...

My thought was that the end result in table A would be the same on either approach - i.e. 1 not added to anything (inner join) is the same as 1 + 0 (left join with isnull ()) ...

Although the SQL Procedure Pass-Through Facility has always passed joins to the DBMS, it is now possible to pass joins to the DBMS without using Pass-Through. Beginning in Version 7, the LIBNAME ...