Flexible queries play important roles in intelligent information retrieval and have become the main means to realize data querying. Bosc and Pivert [25] point out that a query is flexible if it satisfies one of
SQL query recommendation suggests an SQL statement to a user, based on his submitted requests and on queries of other users stored in a log. Such methods need to be scalable and data-aware. Data awareness means that the filtering condition, the most crucial element of the recommendation, conta...
Semantic Web inquiry system and method is based on the present invention relates to (DBMS)-of a kind of data base management system to inquire using parametrization SPARQL. The present invention is configured to include output means, generates a parameter list from SPARQL query statements, is ...
In the following, we explain how to use these query builder methods. For simplicity, we assume the underlying database is MySQL. Note that if you are using other DBMS, the table/column/value quoting shown in the examples may be different....
If not set, it means selecting all columns. 参见select(). public array $select = null $selectOption 公共 属性 Additional option that should be appended to the 'SELECT' keyword. For example, in MySQL, the option 'SQL_CALC_FOUND_ROWS' can be used. public string $selectOption = null $...
Furthermore, theCDbConnection::createCommand()method can take an array as the parameter. The name-value pairs in the array will be used to initialize the properties of the createdCDbCommandinstance. This means, we can use the following code to build a query: ...
If the executed statement does not retrieve data, results are displayed in theOutputtab. Active Result tab Active Output tab New console means a new connection to a data source. You can work with just one connection for the data source and have all consoles use that same one connection. Rea...
Of course, eliminating the need for ETL to get transactional data into a form usable for complex, high-performance queries not only simplifies operations and eliminates a key source of human error but also eliminates the latency caused by ETL, which means decisions can now be made in real ...
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In this realm, regression models, being a principal, powerful means for predictive analytics, are of particular interest to both analysts and data analytics platforms. An increasing number of major database vendors include in their products data mining and machine learning analytic tools. RMs are pl...