Explain how the SELECT and WHERE commands help a user to view the necessary data from multiple database files (tables).
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Explain how the SELECT and WHERE commands help a user to view the necessary data from...
Hi Please help me ASAP need SQL commands only for MS Access The following tables provide a very small portion of the data that will be kept in the database. The data needs to be inserted into the database for testing purposes. Write the INSERT commands necessary to place the following data in the tables that were created in Problem 47. (If required by your DBMS, be certain to save the rows permanently.) only for MS Access!!!
Define the following terms: database catalog, program-data independence, user view, DBA, end user, canned transaction, deductive database system, persistent object, meta-data, and transaction-processing application.
Explain why the following two commands produce different results: SELECT DISTINCT COUNT (V_CODE) FROM PRODUCT; SELECT COUNT (DISTINCT V CODE) FROM PRODUCT;
Secondary Data Source Examples Please select a secondary data source (such as a specific healthcare index, registry or database) and explain it in detail, including when and how it is used and where the data comes from (the primary source), etc.
Does a wizard function allow the user to enter or modify data in the records? Select Yes or No. A) Yes B) No What are procedures that help keep a database current? A) Database query procedures B) Report generation procedures C) File maintenance procedures D) Data entry procedures What is one advantage of using a relational database over a spreadsheet or flat file to store data? A) It allows for reduced complexity in the design and implementation. B) It enables...
HEALTH CARE DATABASE Database specification: The database will be like a repository of illnesses, symptoms, checkup results, physician opinions, given medicines, treatment plans, x-rays requested, and any other necessary information that may help researchers, physicians, pharmacists, health care developers, or anyone who is interested For each illness case, the database should contain information related to the hospital accepted the case, physicians treated the case and how it was treated, the result of the treatment and how long it took The...
Discuss the criteria you would use to select a style to present you end-user data. Explain
Explain how Data Tables work. State why do we use the Data Tables. Give an example if necessary
I need help with this. 22. Show a command that will create a file named "etc.tar" in your home directory from recursively going through all of the files in the "/etc" directory. In other words, the "etc.tar" file will include the files in the "/etc" directory as well as all of its subdirectories. IMPORTANT: This command must work for any user as well as work from any directory. 23. In bash, multiple commands can appear on a single command line...
Contrast the logical and the physical views of data and discuss why separate views are necessary in database applications. Describe which perspective is most useful for each of the following employees: a programmer, a manager, and an internal auditor. The relational data model represents data as being stored in tables. Spreadsheets are another tool that accountants use to employ a tabular representation of data. What are some similarities and differences in the way these tools use tables? How might an...