oracle leftmost 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;oracle leftmost 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;ORACLE SQL SUBSTR
SUBSTR(string, :START_POS, :SUBSTR_LENGTH);
SELECT SUBSTR('ABCDEFG',3,4) FROM DUAL;
--OUTPUT: CDEFCopyright © 2021 Codeinu
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