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How to display single quotes in SQL or Handling single quotes in Oracle SQL


Most of them have been asking me how do I display single quote in a select statement, here we go.

Single quotes are used to represent literal strings so one should always know how to handle them, Oracle provides different ways of handling single quotes.

1. If you want to begin and end with single quote,

SELECT '''hello how are you''' FROM DUAL;

'hello how are you'

Notice that you have to use 3 single quotes in the beginning  and at the end.

2. If you want to display single quote in a using concatenation operator,

SELECT 'hi, how' || '''' || 's mithun' FROM DUAL;

hi, how's mithun

Notice that you have to use 4 single quotes here.

3. If you want to display single quote in between,

SELECT 'hey how''z dhruv doing' FROM DUAL;

hey how'z dhruv doing

Notice that you have to use 2 single quotes here.




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Comments

K.N. Arun said…
what is the difference b/w 9i,10g, 11g.....?
January 4, 2014 at 6:46 AM
Smrt Vajir said…
9i :only internet & no recycle bin & varchar 2000
10g:internet+grid computing & recycle bin & varchar 4000
11c:cloud computing(any place u access the data with the help of internet).............i am student of mithun sir but not get any SQL interview call....
August 10, 2014 at 9:04 PM
Smrt Vajir said…
tell me sir how we join 3 table.........
August 11, 2014 at 2:19 AM
Richard Brown said…

Thank you for sharing useful information, sir, you really save my time!
Richard Brown secure dataroom
October 17, 2016 at 5:17 PM
Romeo said…
HI recently I face one issue with single quotes in subquery.
In tabe a column x I have below value
('A','c')

But subquery is not recognising above value.
Select * from table where f=(select a from abovetable)

Any idea?
October 27, 2016 at 11:25 PM
Romeo said…
HI recently I face one issue with single quotes in subquery.
In tabe a column x I have below value
('A','c')

But subquery is not recognising above value.
Select * from table where f=(select a from abovetable)

Any idea?
October 27, 2016 at 11:25 PM
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