Examples of using Subquery in English and their translations into Romanian
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Colloquial
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Medicine
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Ecclesiastic
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Programming
An example of connecting two tables and a subquery.
This module describes several types of subquery and how and when to use them.
Use the EXISTS predicate to efficiently check for the existence of rows in a subquery.
If the selected object is a subquery, this control contains the text of the subquery.
A full outer join in which all rows from both tables will be included, even if they do not have matches in the related table, view,user-defined function, or subquery.
Specifies the name of the table, view,user-defined function, or subquery for the associated data column.
Use a subquery in a WHERE clause You can use a subquery as part of a WHERE clause in a crosstab query.
Each table, view,user-defined function, or subquery appears as a separate window in the Diagram pane.
For some queries that contained a derived table(subquery in the FROM clause), delay of materialization resulted in a suboptimal execution plan due to a less accurate row-count estimate.
For example, if you select a column for output in a table, view,user-defined function, or subquery window in the Diagram pane, the Query Designer adds the data column to the Grid pane and to the SQL statement in the SQL pane.
If the joined data columns are not displayed(for example, the table, view,user-defined function, or subquery window is minimized or the join involves an expression), the Query Designer places the join line in the title bar of the rectangle representing the table, view, user-defined function, or subquery.
Subqueries are not supported on the server.
Write queries that use correlated subqueries in a SELECT statement.
Queries That Use Correlated Subqueries.
Describe where subqueries may be used in a SELECT statement.
Module 10: Using Subqueries.
Fixed a rare query error when using deeply nested subqueries.
You can also use subqueries as predicates- specifically, those in the WHERE clause- in a crosstab query.
If you consider connecting a large number of subqueries and assembling data into a single table row by row, you can also use the Union and Union All operators.
Building complex queries impliesuse to select data a significant number of tables and subqueries related to each other.
Oracle Database: Introduction to SQL training helps you write subqueries, combine multiple queries into a single query using SET operators and report aggregated data using group functions.
FIX: You may receive incorrect results when you run a complex query that contains aggregates functions, join functions, anddistinct functions in subqueries in a SQL Server 2008 environment.
Typically, the samples can be from a fairly large number of not only interconnected tables, butalso the nested queries/ subqueries that the programmer itself makes, depending on the task assigned to it.
The SQL language and the Join Inner Join operator can beUse not only to merge two or more tables, butalso to connect other subqueries, which greatly facilitates the work of database administrators and, as a rule, can significantly speed up the execution of certain structurally complex queries.