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SQL LEN() function(combine several special functions)
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Top SQL string functions in SQL Server 2017
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T-SQL 101: #40 String data types in SQL Server - The Bit Bucket
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Introduction to SQL Server's Common String Functions - CodeProject
T-SQL to Enforce Proper Case Capitalization – Justin Cooney
SQL Substring Examples for T-SQL, R and Python
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Top SQL string functions in SQL Server 2017
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SQL varchar data type deep dive
