SUBSTR

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Compatibility
SUBSTRING(s FROM i FOR j)
EngineOKAlternative
ingresYesSUBSTRING(s FROM i FOR j)
oracleYes
postgresYesSUBSTRING(s FROM i FOR j)
sqlserverNoSUBSTRING(s,i,j)

SUBSTR

SUBSTR allows you to extract part of a string.

   SUBSTR('Hello world', 2, 3) -> 'llo'    

In this example you put the region and the name together for each country.

SELECT name,
       SUBSTRING(name, 2, 5)
  FROM bbc
SELECT name,
       SUBSTR(name, 2, 5)
  FROM bbc