1. How can you select two fields simultaneously in table design window?
2.How can you place the heading just above the list?
3.What is the extension of Base files?
4. Name any two steps to query generation using wizard?
5. Can you set more than one key as primary key?
Answers
Answer:
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1. We can select two fields simultaneously in table design window by clicking two times on the design view.
2. We can place the heading just above the list by using a heading tag.
3. The extensions of Base files can be HTM, ODT and PPTX.
4. The two steps to query generation using wizard are provided below.
5. No, we cannot set more than one key as primary key.
Explanation:
1. In a table design window, two fields can be selected simultaneously by clicking two times on the design view for creating a query. By clicking on 'add' and then on 'close', the field list appears. Therefore, by selecting a typographical symbol which is (*) of a particular table, two or more fields can be selected simultaneously.
2. The heading tag is a tool which is used for the purpose of heading in the HTML language. Under this tag, opening and closing of the heading both take place. Therefore, a heading tag is used to place a heading on the list.
3. Base files are the files which are primarily associated with the operating systems. They created by a subversion, that is an open source version of control system. The extensions of base files can be TXT, HTM, ODT, PPTX, and ODS. The files with extension can be opened only with the use of different programs.
4. A query wizard is a sub-system by which database tables can be viewed. Any two steps of the query generation by using wizard are as follows:
i. Selecting the fields.
ii. Selecting the sorting order.
5. A primary key is a type of key that is used in relational database for unique records. The answer is No, the primary key cannot be set as more than one key. There is always only one primary key. However, it can consists of more than one columns so that one can easily identify the rows.
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