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Oracle SQRT(), SUBSTR(), SYSDATE Functions
Oracle SQRT(), SUBSTR(), SYSDATE Functions
SQRT(n) Square Root (returns NULL for negative no's)
select SQRT(49) from dual
Result :7
SUBSTR(char, s[,l])
A substring of char, starting at character s, length l
select SUBSTR('Earn Money Work at Home',11) from dual
Result :Work at Home
select SUBSTR('Earn Money Work at Home',11,5) from dual
Result :Work
SYSDATE The current system date & time
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