LEN and DATALENGTH Function in SQL Server 2012
SUBSTRING, PATINDEX and CHARINDEX string functions in SQL queries
Exploring SQL Server LEN() Function - {coding}Sight
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PostgreSQL LENGTH() function - w3resource
SQL LEN() function(combine several special functions)
Sql Server 2012 | SqlHints.com
SQL LEN Function
Learn SQL SUBSTRING Function
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SQL DATALENGTH
sql - Is it faster to check if length = 0 than to compare it to an empty string? - Stack Overflow
SQL SERVER – How to store more than 8000 characters in a column | SQL Server Portal
Commonly Used Built In String Functions In SQL Server
How to Check if a Column Exists in a SQL Server Table? - GeeksforGeeks
LEN function in MSSQL and it's equivalent in MySQL
SQL SERVER - Increase Characters Displayed in Text Results - SQL Authority with Pinal Dave
LEN function in MSSQL and it's equivalent in MySQL
SQL TRIM() - SqlSkull
MySQL String Length | Explain LENGTH and CHAR_LENGTH Functions
SQL: How to limit characters in a SQL Server string when varchar(n) won't work - The Bit Bucket
