38 Questions
What can be obtained using the relational data in the four tables?
A complete description of any book title
What is the PubID of the book 'Step-by-step dBase IV'?
52
What is the purpose of a database management system (DBMS)?
To create and maintain databases
What is a query in the context of a database?
A request for information from the database tables
What is the author identification (Au_ID) of the book 'Step-by-step dBase IV'?
171
What is the result of using the PubID in the Publishers table?
The book's publisher is obtained
What is an example of a virtual table or logical view?
A table of all authors and books published after 1992
What is an example of a commercial DBMS program?
Microsoft Access
What is the purpose of following the steps in order?
To avoid potential data access errors
What type of control is placed on the form?
ADO data control
What is the name of the database being accessed?
BIBLIO.MDB
What is the purpose of setting properties for the controls?
To set the properties in a specific order
What type of application is being developed?
Desktop application
What is the purpose of the label boxes and text boxes?
To display data from the database
What is the purpose of building a virtual table?
To display only the information we want the user to see
What property of the dtaTitles control needs to be replaced with the SQL statement?
RecordSource
What is the purpose of the ORDER BY clause in the SQL statement?
To sort the data in a specific order
What is the correct syntax for the SQL statement in the RecordSource property?
A single line with spaces separating the clauses
What happens if there is a syntax error in the SQL statement?
The program will tell you that there is an error, but not what it is
What is the purpose of adding a label box and text box to the form?
To display the author name
What fields are selected from the tables in the SQL statement?
Author, Titles.ISBN, Title
What is the result of the SQL statement?
A table with only the selected fields and matching data
What is the purpose of typing 'SELECT * FROM TableName' in the Command Text (SQL) box?
To select all fields from a table
What is the relationship between the Data Control and its two primary properties?
Database file -> Database table -> ADO Data control
What type of access does a Text Box provide to a specified text data field?
Read/write access
What type of field is a Check Box typically used for?
Boolean field
What is the name of the file to be created in the folder where you will store your data link file?
BIBLIO.UDL
Which tab do you select to choose the type of database to connect to?
Provider tab
What is the purpose of setting the RecordSource property?
To establish a Recordset property
What is the purpose of using a bound control?
To provide read/write access to a database field
What is the purpose of the UDL file?
To establish a connection to a database
What type of access does a Label provide to a specified text data field?
Read-only access
What is the language used to make a query to a database?
SQL
What is the purpose of the RecordSource property?
To assign a table to a data control
What is required to use a bound control?
One or more data controls must be on the form
What is the result of a query to a database?
A new table of records and fields
What is the name of the provider to select for an Access database?
Microsoft Jet 3.51 OLE DB Provider
What is the purpose of clicking the Test Connection button?
To verify that the connection to the database is working
Study Notes
Relational Database and Data Management
- A relational database consists of multiple tables that are connected by relationships, enabling the creation of a complete description of any book title in the database.
- The database is managed by a database management system (DBMS), which handles the creation and maintenance of databases.
Database Management System (DBMS)
- Examples of commercial DBMS programs include Microsoft Access, Microsoft FoxPro, Borland Paradox, Borland dBase, and Claris FileMaker.
- A DBMS can also be developed using Visual Basic.
Data Link File
- A data link file is created to connect to a database, such as the BIBLIO.MDB database.
- The file is created by right-clicking in the Explorer window, selecting New, and then Microsoft Data Link.
- The file is renamed, and its properties are set to connect to the database using the Microsoft Jet 3.51 OLE DB Provider.
Assigning Tables
- Once connected to a database, a table is assigned to the data control using the RecordSource property.
- The language used to make queries of the database is SQL (Structured Query Language).
- A table is assigned by placing a valid SQL statement in the RecordSource property of the data control.
Bound Data Tools
- Bound data tools, such as labels, text boxes, check boxes, and combo boxes, are used to provide display-only or read/write access to specific database fields.
- These tools are used in conjunction with an ADO data control to display and edit database data.
Example: Accessing the Books Database
- An ADO data control, labels, and text boxes are used to display titles and ISBN values from the BIBLIO.MDB database.
- The RecordSource property is used to set the SQL statement that retrieves the required data from the database.
Forming a Virtual Table
- A virtual table is formed by using a SQL statement that selects specific fields from multiple tables and joins them based on common fields.
- The SQL statement is placed in the RecordSource property to retrieve the required data from the database.
This quiz covers the basics of database systems, including data modeling, normalization, and querying. Test your knowledge of database concepts and relational data
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