mysql - How to put single quotes around variables in a dynamic query -

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I am trying to create a dynamic query. Initially, the query query is set to string and then I want to add the WHERE clause dynamically. This works, except that in this case the single quotes around the string are not @valval due to an error. 

  SET @Query = @Query + 'WHERE' + How do I include a single quotation mark, so that it can be added correctly?  
 '' + Palalam + '' + operator + '+' '+ @val +';;

Thanks!

You must keep a quote between quotes but avoid, so it can not break your code. This will look like the following: 

  SET @Query = @Query + 'WHERE' + '' @param + '+ @operator +' '+' \ '+ + val +' \ ' ';  Edit  
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