Change Parameter window

Use the Change Parameters window to map the Java™ parameter to a corresponding SQL data type.

In
Specifies that the parameter is an input parameter that passes values to the routine from the client application. Input parameters do not contain a value when the routine returns control to the client application.
Out
Specifies that the parameter is an output parameter that returns values from the routine to the client application. If a routine fails to set one or more of the output-only parameters, the database does not detect the error in the routine. Instead, the database returns the output parameters to the client application with the values that were established when the routine was started.
InOut
Specifies that the parameter is both an input and output parameter. Input and output parameters can pass values to the routine from the client application and return values from the routine to the client application.
Java name
Shows the Java name.
SQL name
Shows the SQL name.
SQL type
Select the SQL data type.
Length
Type a length for the selected SQL type. This option is available only for the following SQL data types: BLOB, CHAR, CLOB, DBCLOB, GRAPHIC, VARGRAPHIC, and VARCHAR.
Unit
Select a unit of size for the selected SQL data type. This option is available only for the following SQL data types: BLOB, CLOB, and DBCLOB.
Precision
Type a number (between 1 and 31) for the total number of digits that the value can contain. This option is available only for the following SQL data types: DECIMAL, FLOAT, and NUMERIC. The precision of binary integers and decimal numbers is the total number of binary or decimal digits, excluding the sign. The precision of floating-point numbers is either single or double, which refers to the number of digits in the fraction. The precision cannot be negative.
Scale
Type a number for the number of digits to the right of the decimal point. This option is available only for the following SQL data types: DECIMAL, FLOAT, and NUMERIC. The scale cannot be negative or greater than the precision. The maximum precision is 31 digits. If you specify a scale, you must also specify a precision. By default, the scale is 0.
Comments
Type comments.
For bit data
Specifies the bit data subtype for all character strings. Available only for the following SQL data types: CHAR and VARCHAR. The bytes of a character string with the bit data subtype do not represent characters. When you specify this option, no character conversion is performed on character strings. Tip: This option is useful when you are passing large binary strings, such as encrypted passwords, to a routine.

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