MS SQL Server (via mssql driver): mssql:host=localhost;dbname=mydatabase Oracle: oci:dbname=//localhost:1521/mydatabase请注意,如果你是通过 ODBC 来连接数据库,你应该配置 yii\db\Connection::$driverName 属性,以便 Yii 能够知道实际的数据库种类。例如:'...
Placement of SQL statementsIn all the example above the SQL statements were inline with the command object, a better idea is to create a class, in this case SqlStatements.cs and place the SQL in there.In the last code sample the SQL took up a lot of space and can only be used in ...
The intermediaryFunctionalBuilder#CanBuildX(created byandcombinators) takes a function that translates a complex typeTto a tuple matching the individual pathWrites. Although this is symmetrical to theReadscase, theunapplymethod of a case class returns anOptionof a tuple of properties and must be ...
If for some reason mustache isn't working out for you and you want to use node-postgres's safe parameterized queries (which protect against sql injection attacks), you can use those too. Just use the object-as-first-arg form of@sqland pass it aparamsproperty: ...
Creating SQL statements by string concatenation can easily cause a backdoor for SQL injection, what means hackers can steal or destroy all your data. From software architecture side, SQL statements in front end make software un-maintainable over a short lifetime. The only part of a software sys...
Using parameters makes your application more secure because it prevents the possibility of SQL injection attacks. It makes it possible to use objects in queries (rather than only SQL literal values). It also makes statements run more efficiently because they can be reused without needing to be ...
Both the Insert and Update methods return an integer that represents the number of rows added or updated. Insert also offers an overload that accepts a string containing additional SQL statements you might want to execute against the inserted rows. Also, it’s worth mentioning that Insert automat...
Working with SQL Server LocalDB https://docs.asp.net/en/latest/tutorials/first-mvc-app/working-with-sql.html TheApplicationDbContextclass handles the task of connecting to the database and mappingMovieobjects to database records. The database context is registered with theDependency Injection...
Bulk Copy Program - Sqlstate=37000, Native Error=4060 Login failed bundles/jquery Failed to load resource: the server responded with a status of 404 (Not Found) Button click event -execute clientside code as well as serverside code Button click event can be used in MVC? Button click is ...
When creating a DB command from a SQL with parameters, you should almost always use the approach of binding parameters to prevent SQL injection attacks. For example,$post = Yii::$app->db->createCommand('SELECT * FROM post WHERE id=:id AND status=:status') ->bindValue(':id', $_GET['...