Practical SQL Patterns for Data Transformation and Performance Tuning

String and Temporal Data Extraction When extracting partial text or specific date components, standard string and datetime functions provide consistent results across most relational engines. Use SUBSTRING or dialect-specific shortcuts like LEFT to truncate values, and CONCAT_WS to merge fields with a consistent delimiter. -- Extract first 6 ch ...

Posted on Mon, 22 Jun 2026 16:14:31 +0000 by vivek