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Hi, there're 2 solutions for this problem:
1 . Update to our latest version of KoolReport Pro 5.7 or KoolReport Core 5.1
2 . Pls open the file koolreport/core/src/datasources/SQLSRVDataSource.php
and replace all this string:
return strlen($k1) < strlen($k2);
with this one:
return strlen($k1) - strlen($k2);
Let us know how it works for you. Tks,
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