in子查询 EntityQueryable<StringProxy, String> idQuery = easyEntityQuery.queryable(BlogEntity.class) .where(o -> o.id().eq("1" )) .select(o -> new StringProxy(o.id())); List<Topic> list1 = easyEntityQuery.queryable(Topic.class) .where(o -> o.id().in(idQuery)) .toList(); ...
You can paste an SQL query in theQuerytext box or, if you don't have an SQL query prepared and you need to see a list of tables, check theList of Tablesbox. You can double-click the tables and columns that appear in the list to construct an SQL query by either double-clicking it...
Note: The information in this topic applies only to a Microsoft Access project (.adp). The Query Designer consists of three panes: the Diagram pane, the Grid pane,and the SQL pane. The Three Panes of the Query Designer The Diagram pane displays the tables, views, and in-line funct...
You can add the recommended directories or add tables in the data sources on which you have query permissions to a new directory. After you add tables to a new directory, you can view the tables in the directory. You can also view the schema of a table and perform simple operations to ...
The large class of commands that start with .show, are used to display metadata or data. For example, the .show tables command returns a list of all tables in the current database. For more information on management commands, see Management commands overview. KQL in other services KQL is ...
To toggle theIn-Editor Resultsfeature for all files across the IDE, open settings by pressingCtrlAlt0Sand navigate toDatabase | Query Execution | Output and Results | Results. Select or clear theShow results in editorcheckbox. Run queries to tables that you want to compare. ...
For example, when you connect to a data source, such as a SQL Server database, notice on the right-hand side of your screen that there's a section called applied steps. This section displays all the steps or transforms used in your query. In this sense, the Power Query editor serves ...
display(employees_table.select("age","salary").groupBy("age").avg("salary")) Write data with JDBC Saving data to tables with JDBC uses similar configurations to reading. See the following example: Python Python (employees_table.write .format("jdbc") .option("url","<jdbc-url>") .option...
Change the data type of a field to do a cross-database join When you want to perform a join between two tables in the physical layer of the canvas, the data type of the fields you join on must be the same. In cases when the data type of the fields are not the same, you can ...
Display Query & View Designer Panes Create Queries with Unnamed Parameters Work with Diagram Layout Add New Rows in the Results Pane Join Tables on Multiple Columns Add Tables to Diagrams Create Full-Text Search Queries Sort Multiple Columns in Queries Navigate in Database Diagram D...