laravel eloquent select
Laravel's database query builder provides a convenient, fluent interface to creating and running database queries. It can be used to perform most database operations in your application and works on all supported database systems. The Laravel query bu,Sometimes you may wish to define a scope that applies to all queries performed on a model. In essence, this is how Eloquent's own "soft delete" feature works. Global scopes are defined using a combination of PHP traits and an implementation ,Since each Eloquent model serves as a query builder, you may also add constraints to queries, and then use the get method to retrieve the results: $flights = App-Flight::where('active', 1) ->orderBy('name', 'desc') ->take(10),Sometimes you may wish to use one database connection for SELECT statements, and another for INSERT, UPDATE, and DELETE statements. Laravel makes this a breeze, and the proper connections will always be used whether you are using raw queries, the query bu, Keep in mind that when selecting for only certain fields, you will have to make another query if you end up accessing those other fields later in the request (that may be obvious, just wanted to include that caveat). Including the id field is usually a g, lists() turns the resulting collection into an array with key value. You can only have two database columns in there. Otherwise you have to use select() but then you will get a collection of models not just an array. $categories = CategoryModel::select(&,@JarekTkaczyk Thanks for explaining that to me, I thought it was a performance issue. I got it wrong before, thought I had to use pluck() since I cant see either get([]) / first([]) with an array looking at the Laravel docs on the website http://laravel.c,資料庫查詢產生器(query builder) 提供方便流暢的介面，用來建立及執行資料庫查詢語法。在你的應用程式裡面，它可以被使用在大部分的資料庫操作，而且它在所有支援的資料庫系統上都可以執行。 注意: Laravel 查詢產生器使用PDO 參數綁定，以保護應用程式免於資料隱碼攻擊(SQL injection)，因此傳入的參數不需額外跳脫特殊字 ... , Introduction Eloquent ORM 為您的database操作提供了一個優雅且簡單的ActiveRecord 的實作。每個database 的table 有一個對應的"M...
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 laravel eloquent select 相關參考資料
Database: Query Builder - Laravel - The PHP Framework For Web ...
Laravel's database query builder provides a convenient, fluent interface to creating and running database queries. It can be used to perform most database operations in your application and works ... https://laravel.com Eloquent ORM - Laravel - The PHP Framework For Web Artisans
Sometimes you may wish to define a scope that applies to all queries performed on a model. In essence, this is how Eloquent's own "soft delete" feature works. Global scopes are defined u... https://laravel.com Eloquent: Getting Started - Laravel - The PHP Framework For Web ...
Since each Eloquent model serves as a query builder, you may also add constraints to queries, and then use the get method to retrieve the results: $flights = App-Flight::where('active', 1) -&g... https://laravel.com Database: Getting Started - Laravel - The PHP Framework For Web ...
Sometimes you may wish to use one database connection for SELECT statements, and another for INSERT, UPDATE, and DELETE statements. Laravel makes this a breeze, and the proper connections will always ... https://laravel.com how to select specific columns in laravel eloquent - Stack Overflow
Keep in mind that when selecting for only certain fields, you will have to make another query if you end up accessing those other fields later in the request (that may be obvious, just wanted to incl... https://stackoverflow.com php - How to Select Certain Fields in Laravel Eloquent? - Stack ...
lists() turns the resulting collection into an array with key value. You can only have two database columns in there. Otherwise you have to use select() but then you will get a collection of models n... https://stackoverflow.com Select specific columns using eloquent orm - Laracasts
@JarekTkaczyk Thanks for explaining that to me, I thought it was a performance issue. I got it wrong before, thought I had to use pluck() since I cant see either get([]) / first([]) with an array look... https://laracasts.com 查詢產生器- Laravel - 為網頁藝術家創造的PHP 框架
資料庫查詢產生器(query builder) 提供方便流暢的介面，用來建立及執行資料庫查詢語法。在你的應用程式裡面，它可以被使用在大部分的資料庫操作，而且它在所有支援的資料庫系統上都可以執行。 注意: Laravel 查詢產生器使用PDO 參數綁定，以保護應用程式免於資料隱碼攻擊(SQL injection)，因此傳入的參數不需額外跳脫特殊字 ... https://laravel.tw Laravel-Eloquent ORM(上) « 無用洪的部落格
Introduction Eloquent ORM 為您的database操作提供了一個優雅且簡單的ActiveRecord 的實作。每個database 的table 有一個對應的"M... http://jocoomadao.logdown.com |