Too bad that in spite of being my favourite director, I can only remember his last name: oh well, that will have to do. Now I am going to get a list of movies of my favourite director. 60 Dislike Share Save Coding Simplified 31.1K subscribers Welcome to Coding Simplified (In this video, we're going to reveal regex query operator used in. As an example let´s imagine we got a MongoDB collection of movies that has the following fields: title, plot, and director. Let’ also assume that we have the following documents in our collection. Let’s assume that we have our same Employee collection which has the Field names of Employeeid and EmployeeName. The following example shows how this can be done. For Case insensitive query please prepare a query as explained in the above first example. The regex operator in MongoDB is used to search for specific strings in the collection. In MongoDB we can query string fields quite easily using regular expressions. filter builder.Regex ('Author', '' + search + '.') Search Result: The above query returns all the Authors which starts with J values. Now let´s see how we can achieve the same with MongoDB. SELECT * FROM names n where n.name LIKE '%a%' This query will find all values that contains a ‘a’ in any position: SELECT * FROM names n where n.name LIKE '%Smith' This query will get all the values ending with ‘Smith’: SELECT * FROM names n where n.name LIKE 'James%' Developers who had worked with SQL Server are well familiar with the % wildcard that represents 0 or any number of characters.įor example, this query will find all values starting with ‘James’: MongoDB queries that filter data by searching for exact matches, using greater-than or less-than comparisons, or by using regular expressions will work well enough in many situations. SELECT * FROM names n where n.name LIKE 'James Smith'īy combining the use of the LIKE function with wildcards, we can find all values that start, end, or contain a string at a given position. The author selected the Open Internet/Free Speech Fund to receive a donation as part of the Write for DOnations program. MongoDB uses PCRE (Perl Compatible Regular. LIKE allow us to check if 2 strings are equal: MongoDB also provides functionality of regular expression for string pattern matching using the regex operator. and operator search with regular expression mongodb compass.
#Mongodb compass filter regex symbols series#
Regex is a series of characters forming a pattern to. In SQL we commonly use the LIKE function to compare strings. 'compass' mongodb filter or search regex. To execute a MongoDB equivalent of a MySQL like clause, MongoDB uses regex.
#Mongodb compass filter regex symbols how to#
In this post we saw the basics of MongoDB filtering, now it is time to have a closer look at how to filter and search information in MongoDB collections when dealing with attributes of type string.
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