You are given a table table1 with fields id (primary key, autonumber) and x of type short text and a table table2 with fields id (primary key, autonumber) and y of type number. you write a query which produces this output:

col1 x "hello" "how" "are"
col2 y 1 2 3
col3 id 4 5 6
what can you say about the relationship between the two tables? complete the following statement:

there is a relationship from to field in . hint: the relationship is between a field of type autonumber and a field of type number.

table1 contains 3 rows with keys 1,2,3. what can you say about the contents of those rows? compete the following statements:

what is in field x in row , row , row ?
what is the minimum of rows that table table2 must contain?

The concept of comes from the acknowledgment that data changes form and often gets copied, moved, and stored in many places. sensitive data often leaves the protection of application databases and ends up in e-mails, spreadsheets, and personal workstation files.

Data is processed, stored, and transmitted as a series of 1s and 0s. each 1 or 0 is called a(n) . a series of eight 0s and 1s, called a(n) , represents one character—a letter, number, or punctuation mark. data becomes when it is presented in a format that people can understand and use. digital signals are represented by two different , such as +5 volts and +.2 volts. digital data can also take the form of light and dark spots etched onto the surface of a cd or the positive and negative orientation of particles on the surface of a hard disk. data consists of numbers that might be used in arithmetic operations. it can be represented digitally using the number system. data is composed of letters, symbols, and numerals that are not used in arithmetic operations. computers represent this type of data using , ebcdic, unicode, or utf-8. data is quantified using terms such as or kibibyte (1024 bytes), and prefixes such as or mebi (1,048,576), and giga or (1,073,741,824). to reduce file size and transmission times, digital data can be compressed. compression provides the means to compress data and reconstitute it into its original state. compression throws away some of the original data during the compression process. compressed files usually have at the end of the file name and are represented with special icons. these files have to be or unzipped before you can view the data they contain.

John recently worked on a project about various programming languages. he learned that though procedural language programs are useful, they have disadvantages too. what is a disadvantage of programs written in procedural languages? a. programs do not represent data complexity. b. programs take more time to execute. c. programs are prone to security threats. d. programs do not interface with multiple platforms.