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How would you write SQL query to show avarege number of something?
Wiki User
∙ 11y ago
That's something like:
SELECT AVG(column) AS average_value_of_column FROM table;
Wiki User
∙ 11y ago
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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';
Is 10000 the smallest 4 digit number?
I would have guessed 0000, but you might be on to something.
How accurate are credit reports?
They are very accurate - You get the same information that a large corporation would receive from their query.
How do you say the number one in Portuguese?
The number one in portuguese translates as "um". Phonetically it would sound something like "oom".
Why is 7 a factor of 168?
Factor means a number times another numbers equals a larger number. Since 7 can be called "a number" and 168 is the "larger number" then the "another number" would be something the multiplys by 7 to equal 168. That number would be 24
How to change a field to Uppercase in a query?
Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.Use an Update query and in it you would use the Upper function.
What is a simple query?
A simple query would do something like just list of data in the table, without any other elements such as conditions or sub-queries or being a parameter query or using functions or formulas. So if all you wanted to do was list of all the names of people in a table, that would be a simple query.
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 would be an avarege monthly recreational bill for a single person?
for me it would be a bout 1,000$$$ but for most people probably 700-900$
How do I create a SQL Select query that will return the number of columns not rows in my query result. So if my query returns 1 row with 5 columns I want the query to generate the number 5.?
I have the same question but well a not-so-elegant solution would be to define a view within your DBMS e.g. CREATE VIEW view_name AS (SELECT ...your_query) and then apply a SELECT COUNT(*) FROM view_name
How can you sort the results from an sql statement?
You can sort the results of a query by using the order by clause. Ex: Select * from tbl_employee order by emp_num The above query would sort the results by the employee number and display them. The default sort is ascending order. Ex: Select * from tbl_employee order by emp_num desc The above query would sort the results by descending order of employee number and display them.
What query do you use to extract data from two tables?
You would use a JOIN query for this.
Where can one find tutorials on writing queries?
Tutorials on writing queries can be found in a number of places depending on what type of query you would like to write. For example, if you would like to write a query letter to a literary agent, you can find excellent advice at Absolute Write. You can also visit your local library and purchase books on how to write query letters.
Why DBA understand query optimization?
he is the main person for the data administration for the relational database management systems. therefore, he needs to understand the query plan and be able to suggest the suitable query plan that would satisfy the query.
Why do data appear many times on a query using access database?
It will depend on the design of your table and your query. If you have done something like brought the table in twice into the design of the query you will get multiple records. There are occasions when you would need to bring in the same table twice, but usually you don't. If you have it in twice it will list records multiple times. Go to the design view of the query and if you see the table there more than once, delete the extra copies of it, so that there is only one. Then design your query and it should be ok.
What is the use of query by example?
Query by Example (QBE) is a database query language where users can perform searches by providing an example of the data they are looking for. It simplifies the process of constructing queries for users by allowing them to specify criteria in the form of example data entries. This method is user-friendly and does not require knowledge of complex query syntax.
What is a parameters?
a parameter query is a query that prompts the user to enter specific criteria every time the query is run. When building the query, you would enter the prompt in the criteria line under the field you want the information to be filtered from. For example, if you wanted to look at items that sold on a specific date each time you ran the query, your criteria line would look like this: [enter date of sale] So when you ran the query, before your results even appeared, a parameter box would pop up telling you "enter date of sale", the user would enter the date and then the filtered criteria of the query results will show.
