sql left characters
-- For Oracle only
-- syntax
SUBSTR(<main-string>,1,<number-of-characters>)
-- example
SUBSTR('Useless stuff',1,10) -- OUTPUT: Useless st
-- practical example
SELECT SUBSTR('Useless stuff',1,10)
FROM DUAL;sql left characters
-- For Oracle only
-- syntax
SUBSTR(<main-string>,1,<number-of-characters>)
-- example
SUBSTR('Useless stuff',1,10) -- OUTPUT: Useless st
-- practical example
SELECT SUBSTR('Useless stuff',1,10)
FROM DUAL;sql right characters
-- For Oracle only
-- syntax
SUBSTR(<main-string>,-<number-of-characters>)
-- example
SUBSTR('Useless stuff',-9) -- OUTPUT: ess stuff
-- practical example
SELECT SUBSTR('Useless stuff',-9)
FROM DUAL;Copyright © 2021 Codeinu
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