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A database query is similar to a command that can be used to perform a specific function on a database table. Some common types of queries are:
- INSERT - Used to insert data into a table
- UPDATE - Modify data that is already existing in a table
- DELETE - Delete data from a table
- SELECT - To fetch and display data from a table
What else can I help you with?
A query language is an example of?
Any thing that has to do with database is a query lanquage. As in query the data to retrieve whatever you are looking for.
What is query explain with the help of an example?
Literally "query" is just another word for "question". So right up there is an example. In SQL, a query would be something like SELECT NAME FROM EMP WHERE DEPARTMENT = 'MARKETING';
What is a select query?
Select query is a DRL. DRL stands for Data retrieval language. Example select * from table_name;
What is select query?
Select query is a DRL. DRL stands for Data retrieval language. Example select * from table_name;
What does QBE stand for?
QBE stands for Query by Example.
What is an example of an imperfect URL query?
http://ww.google.com
What is the use of query by example?
A query by example is where you fill in data that in effect acts like a sample of what you want the query to retrieve. So if you have a set of data of employees and want to show ones that work in a particular department, you would type the name of the department into the query to correspond to the field that shows the department. So in the query, you would have chosen your fields, and in the criteria under the department field you might type something like "Sales", indicating that you want records that have "Sales" in the department field. What you type in acts as an example of the data you want to get. You could use lots of criteria in different ways and build more complex queries, but still using a query by example approach.
Give an Example for knapsack problem?
pls soon answer my query....
How can I suppress 0 in an access query expression?
You would need to exclude the unwanted values in the where clause of the query, for example;select * from InvoiceLines where InvoiceValue 0
What does the mean in Microsoft Access?
The * symbol is a universal wildcard symbol. In the Access Query By Example Design Pane, the * represents all fields in the table or query.
What is ment by query?
Query is an instruction given to Database engine to retrieve the results. Example: Select EmployeeName From tblEmployees Where EmployeeID = 123; This is a sample query to retrieve the Name of a particular employee from the set of records saved already.
What is an example of a standard query language used in relational databases?
The standard query language for relational databases, as adopted by the American National Standards Institute (ANSI), is SQL, which is generally understood to be an abbreviation for "structured query language."
