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Author: rzn-git

SQL String Functions + Use Cases.sql

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+
+
+--CREATE TABLE EmployeeErrors (
+--EmployeeID varchar(50)
+--,FirstName varchar(50)
+--,LastName varchar(50)
+--)
+
+--Insert into EmployeeErrors Values 
+--('1001 ', 'Jimbo', 'Halbert')
+--,(' 1002', 'Pamela', 'Beasely')
+--,('1005', 'TOby', 'Flenderson - Fired')
+
+Select *
+From EmployeeErrors
+
+-- Using Trim, LTRIM, RTRIM
+
+--Select EmployeeID, TRIM(employeeID) AS IDTRIM
+--FROM EmployeeErrors 
+
+--Select EmployeeID, RTRIM(employeeID) as IDRTRIM
+--FROM EmployeeErrors 
+
+--Select EmployeeID, LTRIM(employeeID) as IDLTRIM
+--FROM EmployeeErrors 
+
+
+-- Using Replace
+
+--Select LastName, REPLACE(LastName, '- Fired', '') as LastNameFixed
+--FROM EmployeeErrors
+
+
+-- Using Substring, when we dont have common ID like EmployeeID to match 2 tables
+
+--Select err.FirstName, Substring(err.FirstName,1,3), dem.FirstName, Substring(dem.FirstName,1,3)
+--FROM EmployeeErrors err
+--JOIN SQLTutorial.dbo.EmployeeDemographics dem
+--on Substring(err.FirstName,1,3) = Substring(dem.FirstName,1,3)
+
+
+
+
+-- Using UPPER and lower
+
+Select firstname, LOWER(firstname)
+from EmployeeErrors
+
+Select Firstname, UPPER(FirstName)
+from EmployeeErrors