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POHow do I escape SQL query's single quotes for query generated in javascript/jquery in cartodb database?
 

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  1. POHow do I escape SQL query's single quotes for query generated in javascript/jquery in cartodb database?
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    <p>I am using javascript/jquery to generate a sql query. I have a sql query I'm generating and using inside a javascript/jquery script.</p> <p>Something like this:</p> <pre><code>var storeName; var query = "SELECT * FROM stores where storeName = '" + storeName + "';"; </code></pre> <p>(<code>storeName</code> is generated through jquery when a user selects from html)</p> <p>So when <code>storeName</code> is something like <strong>"Jackson Deli"</strong> the query runs just fine.</p> <p>But then when <code>storeName</code> is <strong>"Jackson's Deli"</strong> it does not work and it seems to be because the apostrophe in <strong>Jackson's</strong> is treated like a closing quote. I know I can escape a quote by doubling it if I was hard-coding the query... so </p> <pre><code>SELECT * FROM stores where storeName = 'Jackson''s Deli'; </code></pre> <p>should work. But I'm not hard-coding the query. Instead it's being generated by user input and may or may not have an apostrophe in the name. How would I go about escaping <code>'</code> this character in this case? I would need it to work inside Javascript/jquery.</p> <p>Would I need to write an if statement that looks for <code>'</code> in <code>storeName</code> and replaces it with <code>''</code> ?? Or is there another way to go about this?</p> <p>EDIT: Ouch! Normally, yes, I realize the perils of generating a query on the client side.<br> So here's some more context. I'm working with <a href="http://www.cartodb.com" rel="nofollow">cartodb</a> and following their documentation. Here's an example from their repo doing something similar to what I'm talking about (they have other examples too):</p> <p><a href="https://github.com/CartoDB/cartodb.js/blob/develop/examples/layer_selector.html" rel="nofollow">https://github.com/CartoDB/cartodb.js/blob/develop/examples/layer_selector.html</a></p> <p>You can't run a query in cartodb that lets you modify data in any way -- you can only run queries that let you retrieve data. So I'm still thinking about what the best way to escape this quote character would be.</p>
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      1. POHow do I escape SQL query's single quotes for query generated in javascript/jquery in cartodb database?
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      1. VTUpMod
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    1. COHoly SQL injection batman. Who or where did you ever learn to create dynamic SQL strings on the client?>!
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    2. COJust curious, are you generating SQL queries on the client side? If anything, **THAT** takes SQL injection to a new level! The way to go about _that_ would be to **throw it as far as possible. Or even farther!**
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    3. COI really hope you're doing this in Node or Rhino. If this is being executed from a browser, your DB is toast.
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