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A web query is helpful when you want to get data from a website and update yourself with it.

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Q: When might you want to use a web query to capture data?
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When you want to extract data from two or more tables you use an query?

The answer is Join Query


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.


How do you combine two tables data without using joins?

It depends on what you specifically want to do, but you might be able to use a Union query. You could also use a Make Table query, using the Select Into commands.


What is the difference between XML and SQL data storage?

In XML data storage, the data is stored in a file which represents an XML Schema of the data. To read the data, you have to pull and open the entire file in memory and use technics like xpath to get the data element you want. In SQL data storage, the data is stored in a database ( usually relational database). To read the data, you simple sent an SQL query to the database. The database management engine analysis the query and get the required data elements you ask for in your query which is finally sent to you as a reply.


Why is it important to learn SQL?

SQL is the language used to access a database. So if you want to work with databases, especially to query or manipulate data, then it is important that you learn SQL. Even if you use other APIs, you will still need to use SQL queries.

Related questions

What are the advantages and disadvantages of using a web query?

allows you access at anytime and you can refresh the data as-well


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.


When might you want to use this system of data capture?

This question needs more context


When you want to extract data from two or more tables you use an query?

The answer is Join Query


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.


How do you combine two tables data without using joins?

It depends on what you specifically want to do, but you might be able to use a Union query. You could also use a Make Table query, using the Select Into commands.


When you want to build a form for a subset of data you can base the form on what?

Query


When might you want to use sensor capture physical data?

when ya suckkk ya mom ygm fham :P


What is the best source to create form should it from query or table?

There is no definitive answer to that, as it depends what you want on the form. Ultimately all data comes from tables. If you just want to show all the records as they are you could base the form on the table. However if you want to display only selected records or certain calculations, you might create a query to do those operations and then base the form on the query.


What is on a Data Capture form?

Whatever data you want to capture i.e. name, address, shoe size, school, age etc.


What is the difference between XML and SQL data storage?

In XML data storage, the data is stored in a file which represents an XML Schema of the data. To read the data, you have to pull and open the entire file in memory and use technics like xpath to get the data element you want. In SQL data storage, the data is stored in a database ( usually relational database). To read the data, you simple sent an SQL query to the database. The database management engine analysis the query and get the required data elements you ask for in your query which is finally sent to you as a reply.


Why should you create a data capture from your spreadsheet work?

It is not clear what you mean by data capture. You can save the spreadsheet and you will have all your data "captured." If this does not answer your question, please ask again using words that make it clear what you want to know.