SQL Server separate: FirstName, MiddleName and LastName - mysql

Question

Good day!
I get a "Varchar" which is the full name of a client, and need to split this "varchar" as:
"FirstName MidleName MiddleNameTwo LastName "
Need to enter the "FirstName" on "Col1"
Need to enter the "MiddleName, MiddleNameTwo in" col2 "
Need to enter the "LastName" in "Col3"
Thanks for your help!

Answer 1

You Should use subqueries for this task
INSERT INTO names(firstname, middlename, lastname)
SELECT substringfunctionofyours(name), substringfunctionofyours(name),
substringfunctionofyours(name) FROM namefield
keep in mind this is just a dummy query it won't work if you use it like this

Answer 2

Can you change the input method to 4 separate fields ?
If you can't, then implement a specific delimeter between the different parts of the string ?
In cases where the last name is built with 2 words, there is no deterministic way of processing the string if the delimeter is [space] or any other character like '-' or ' which are common in names.
Using a delimeter like '|' :
Declare #FullName varchar(100) = 'FirstName|MidleName|MiddleNameTwo|LastName'
Print 'FirstName = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'MiddleName1 = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'MiddleName2 = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'LastName = ' + #FullName
This will also work if you don't have one of the parts, as long as you maintain the structure.
Declare #FullName varchar(100) = 'FirstName|MidleName||LastName'
Print 'FirstName = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'MiddleName1 = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'MiddleName2 = ' + Substring(#FullName,1,charindex('|',#FullName)-1)
SELECT #FullName = Substring(#FullName,charindex('|',#FullName)+1,len(#fullName))
Print 'LastName = ' + #FullName

Answer 3

Let say you have a name like this "ABC DEF GHI"
now you want First Name, Middle Name and last Name From this string.
Here We Go
Select
Substring(Cast('ABC DEF GHI' as nvarchar),0,charindex(' ',Cast('ABC DEF GHI' as nvarchar))) as Col1,
Substring(Cast('ABC DEF GHI' as nvarchar),charindex(' ',Cast('ABC DEF GHI' as nvarchar)),4)as Col2,
Substring(Cast('ABC DEF GHI' as nvarchar),8,charindex(' ',Cast('ABC DEF GHI' as nvarchar)))as Col3
Note: This is MSSQL SERVER Query and Substring Function is Built in in MSSQL SERVER