6/4/2023 0 Comments Eloquent whereExample 1: Laravel where Like Query use with Eloquent Model You can use the LIKE MySQL keyword and wildcard character with the where clause. The biggest danger in Raw Queries is that they are not automatically secured, so if you are passing any parameters to the query, please triple-check and validate that they have correct values (like a number and not a string) and in a correct format. In laravel, using whereLike () eloquent method, you can implement laravel where like search query, laravel where like multiple columns and laravel collection with where like. Warning: be careful with parameters, always validate them In my experience, it’s often used in database migrations, when some table structure changes and old data needs to be updated with a new structure.ĭB::statement('UPDATE users SET role_id = 1 WHERE role_id IS NULL AND YEAR(created_at) > 2020') Īlso, DB::statement() can perform any SQL query with schema, outside of columns or values.ĭB::statement('ALTER TABLE projects AUTO_INCREMENT=123') If you need to execute some SQL query, without processing any results, like INSERT or UPDATE without any parameters, you can use DB::statement(). $results = DB::select('select * from users where id = ?', ) ĥ. DB::select() is a perfectly fine statement. >selectRaw("(CASE WHEN (gender = 1) THEN 'M' ELSE 'F' END) as gender_text")Ī pretty typical example is when you have an SQL statement from some older project, and you need to convert it to Eloquent or Query Builder. >selectRaw('price - discount_price AS discount') $products = Product::select('id', 'name') If you want to return one specific column as a calculation from other columns, and you want that calculation to happen in SQL query, here’s how it can look: Calculating one field with sub-query: selectRaw() $results = User::selectRaw('YEAR(birth_date) as year, COUNT(id) as amount')ģ. Also, we can use additional “where” statement after grouping, by “having” SQL statement with havingRaw().įor example, how to group by a YEAR of a certain date/time field? We have methods like groupByRaw() and orderByRaw() for this. What if you want to add some SQL calculations inside of “group by” or “order by”? Filtering YEARS: groupByRaw, orderByRaw and havingRaw >selectRaw('companies.name as company_name, avg(salary) as avg_salary, count(*) as people_count') >selectRaw('COUNT(*) as nbr', 'products.*')Īnother example – we can even perform avg() and count() in the same statement. >leftjoin('category','category.product_id','=','products.id') >selectRaw('count(*) as user_count, status') If you need to perform groupBy() and then use some aggregation function from MySQL, like AVG() or COUNT(), it’s useful to perform a Raw Query for that specific section. Most Typical: selectRaw() with Avg/Sum/Count Calculations In this article, I will show you the most common examples of this approach.ġ. MySQL was running on RDS, and this image was took from AWS CloudWatch.īelow, you can see the methods this package implements and also the Laravel equivalent.Laravel has a great database mechanism called Eloquent, also a powerful Query Builder, but sometimes it makes sense to just use plain SQL, in the form of Raw Queries. That said, below you can see one example of the MySQL CPU usage after deploying a change to use hasUsingJoins instead of has, in one of our client's application. You shouldn't assume this is true for every query, and you should use tools like Laravel Debugbar, Laravel Telescope or any tool of your choice to figure out what's best for YOUR use-case. Performanceįirst thing to be aware here, is that the below example is one use-case where using joins over where exists is a lot more performant. This package also implements almost all Laravel methods for querying relationship existence using joins instead of where exists. However, it uses the where exists syntax which is not always the best and more performant choice, depending on how many records you have or the structure of your table. Querying relationship existence is a very powerful and convenient feature of Eloquent.
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