Question

What Java data types correspond with the following SQL types? • INTEGER • INT • REAL • CHAR • CHARACTER • VARCHAR • DOUBLE

Short answer

Answer: The corresponding Java data types for the given SQL data types are: - INTEGER / INT => int - REAL => float - CHAR / CHARACTER => char - VARCHAR => String - DOUBLE => double

Step-by-step solution

List SQL data types

The given SQL data types are: 1. INTEGER 2. INT 3. REAL 4. CHAR 5. CHARACTER 6. VARCHAR 7. DOUBLE

List Java data types

The common Java data types are: 1. byte 2. short 3. int 4. long 5. float 6. double 7. char 8. String

Match each SQL data type with its corresponding Java data type

1. SQL INTEGER: Represents an integer numeric value. Its corresponding Java data type is int, as both can store a range of integer values. 2. SQL INT: Represents an integer numeric value as well. It also corresponds to the Java data type int, as they both have the same purpose as INTEGER. 3. SQL REAL: Represents a single-precision floating-point number. The corresponding Java data type is float, which also represents single-precision floating-point numbers. 4. SQL CHAR: Represents a single character. This corresponds to the Java data type char. Both can hold a single character value. 5. SQL CHARACTER: Represents a single character as well. It corresponds to the Java data type char for the same reasons as SQL CHAR. 6. SQL VARCHAR: Represents a variable-length string of characters. This corresponds to the Java data type String, which also represents a variable-length string of characters. 7. SQL DOUBLE: Represents a double-precision floating-point number. The corresponding Java data type is double, as both represent double-precision floating-point numbers. In conclusion, we have found the corresponding Java data types for the given SQL data types, as follows: - INTEGER / INT => int - REAL => float - CHAR / CHARACTER => char - VARCHAR => String - DOUBLE => double