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Inserting strings with quotes

Carey Brown
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Joined: Nov 19, 2001
Posts: 856

Is there an escape sequence that you can use to insert a string that contains a single quote? e.g.; "Carey's data". I tried a backslash but it didn't work, the backslash actually ended up in the database.

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Jamie Robertson
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Joined: Jul 09, 2001
Posts: 1879

The easiest way is to use a PreparedStatement instead of Statement. PreparedStatements automatically escape these troublesome characters. The other method is to escape single quotes with another single quote:
"insert into ... values ( "Sam", "O''Reilly" )
this will insert "O'Reilly" into the database.
Dorothy Finkel-Laverty
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Joined: Nov 24, 2001
Posts: 51
Jamie - is that two single quotes between the O and R? Or a double quote?
Jamie Robertson
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Joined: Jul 09, 2001
Posts: 1879

you've probably figured this out by now, but you are right, it should be:
"insert into ... values ( 'Sam', 'O''Reilly' )
this will insert O'Reilly into the database.
Adam Hardy
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Joined: Oct 09, 2001
Posts: 567
O'Really? ;-)
It'll mess up your HTML & Javascript too if you're not careful.

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It is sorta covered in the JavaRanch Style Guide.
subject: Inserting strings with quotes
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