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Using a SELECT statement after the INSERT statement with a database-specific function that returns the generated primary key for the most recently inserted row. For example, LAST_INSERT_ID() for MySQL. Using a unique combination of elements from the original SQL INSERT in a subsequent SELECT statement.
[1] [2] The interface of an object conforming to this pattern would include functions such as Insert, Update, and Delete, plus properties that correspond more or less directly to the columns in the underlying database table. The active record pattern is an approach to accessing data in a database. A database table or view is wrapped into a class.
SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.
A common table expression, or CTE, (in SQL) is a temporary named result set, derived from a simple query and defined within the execution scope of a SELECT, INSERT, UPDATE, or DELETE statement. CTEs can be thought of as alternatives to derived tables ( subquery ), views , and inline user-defined functions.
6. Pack a dog-friendly travel kit. Make sure you have all the essentials on hand to help make your dog’s journey as smooth and comfortable as possible. Water, a pet bowl, food and treats for ...
While controller classes are a necessary part of development under CodeIgniter, models and views are optional. [6] CodeIgniter can be also modified to use Hierarchical Model View Controller (HMVC [7]) which allows the developers to maintain modular grouping of Controller, Models and View arranged in a sub-directory format.
The U.S. ambassador to Mexico, Ken Salazar, said on Wednesday that the country is not safe and criticized the previous president for a failed security policy and refusing to accept American ...
The Oilers had a 6-on-5 advantage in the final two minutes when Ryan Nugent-Hopkins had a chance to tie the game. But his rebound shot went off Hill's right leg with 1:25 left. Key stat