SQL Substring function overview
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SQL Server LEN Function By Practical Examples
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LEN function in MSSQL and it's equivalent in MySQL
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SQL LEN() function(combine several special functions)
SQL LEN Function
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Substring() in SQL Server: How to use Function with Example
Learn SQL SUBSTRING Function
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SQL Substring Examples for T-SQL, R and Python
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SUBSTRING, PATINDEX and CHARINDEX string functions in SQL queries
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Learn SQL SUBSTRING Function
