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What is query expression in net?
Query expressions are a declarative query syntax .Query expressions allows a programer to write queries in a high-level language.It is similar to Transact-SQL or XQuery. By using query expression ,complex data source operations like filtering, ordering, and grouping operations on data sources can be perform easily with less code.
What is the most important feature of a database?
query
Can write query within the query?
Yes, you can have a query inside a query. That is known as a sub-query.
What is a Brio Query File used for?
A brio query file - file extension bqy - is typically an sql query that can be connected to a RDBMS and return an answer or result set. A brio query file is created using Brio explorer or designer software. This sofware creates SQL queries using a graphic interface to render database objects that can be dragged and dropped on to the designer space. Query design is similar to MS Access.
What is post query and pre query?
pre query
A query that prompts for input whenever it is run is a run-time query?
A query that prompts for input whenever it is run is a Paremeter Query
What is a nested query?
It is a query inside another query. Sometimes we might use one query to reduce down the amount of data to go through and then use another query based on the output of that query to get what you want. The first query is inside or nested in the first query.
What is a querie is used for?
A brio query file - file extension bqy - is typically an sql query that can be connected to a RDBMS and return an answer or result set. A brio query file is created using Brio explorer or designer software. This sofware creates SQL queries using a graphic interface to render database objects that can be dragged and dropped on to the designer space. Query design is similar to MS Access.
What are subqueries used for in a database?
A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.A subquery is basically a query inside another query. Sometimes a main query needs to process data that is the result of another query. To extract that data a subquery could be built into a field in a main query. This is known as a subquery.
What is query Optimization?
Queries of a database can be fast or slow. Depends on a lot of things. The size of the table, the amount of data you are requesting from the query, etc. One of the ways a dba can help query optimization, is by "updating statistics" on a table. Statistics of a table allows the query to find the most efficient way to gather the data from the table.
Examples of database Query?
The database we use is based on structured query language . To add or retrieve data from the database we use SQL . SQL is the structured query language that provides the syntax to add, modify, update or retrieve data from the database.
Can you use query language to extrapolate information from a database?
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