LEFT

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Compatibility
LEFT(s,i)
EngineOKAlternative
ingresYes
mysqlYes
oracleNoSUBSTR(s, 1, i)
postgresNoSUBSTRING(s, 1, i)
sqlserverYes

LEFT

LEFT(s,n) allows you to extract n characters from the start of the string s.

   LEFT('Hello world', 4) -> 'Hell'     
SELECT name,
       SUBSTRING(name, 1, 3)
  FROM bbc
SELECT name,
       SUBSTR(name, 1, 3)
  FROM bbc
SELECT name,
       LEFT(name, 3)
  FROM bbc

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