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OCA Oracle Database SQL Expert Exam Guide by Steve O'Hearn

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INDEX

SYMBOLS AND NUMBERS

“ ”...“ ” (double quotation marks), case sensitivity and, 53–55

!= (not equal), comparison operator, 172

<= (less than or equal to), comparison operator, 172

% (percent), as wildcard symbol, 175–176

* (wildcard operator), SELECT statement, 146

^= (not equal), comparison operator, 173

_ (underscore), as wildcard symbol, 175

|| (CONCAT) character function, 216–217

< (less than), comparison operator, 172

<> (not equal), comparison operator, 173

= (equal), comparison operator, 172

> (greater than), comparison operator, 172

> = (greater than or equal to), comparison operator, 172

1GLs (first generation languages), 27

1NF (first normal form), 16

2GLs (second generation languages), 27

2NF (second normal form), 16–17

3GLs (third ...

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