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How did you narrow down to the point that character set could be the problem

edited May 16, 2017 5:03AM in SQL Performance (MOSC) 1 commentAnswered

we have 2 database  one database is with character set WE8ISO8859P1 with this database  you have sql query that run fast with a good execution plan

on the other database  character set is WE8MSWIN1252 the same query run slower with very bad plan. It is possible that the character set have influence on the optimizer

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