New XML Table Function wizard - Add Column Definition window

Use the Add Column Definition window of the New XML Table Function wizard to specify information about the column definitions.
Relative path
Type a path to the column element relative to the row element. For example, author where the table path is Books/Literature/ and the row path is Book.
Name
Type a column name (up to 18 characters) for the UDF RETURNS TABLE clause.
SQL Type
Select the column data type for the UDF RETURNS TABLEclause.
Length
Type a length for the selected SQL type. This field is available only for the following SQL types: BLOB, CHAR, CLOB, DBCLOB, GRAPHIC, and VARCHAR.
Unit
Select a unit size (bytes, kilobytes, megabytes, or gigabytes) for the selected SQL type. This field is available only for the following SQL 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 field is available only for the SQL types DECIMAL and FLOAT. 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, referring to the number of digits in the fraction.
Scale
Type a number for the number of digits to the right of the decimal point. This field is available only for the SQL types DECIMAL and FLOAT. The scale cannot be negative or greater than the precision. The maximum precision is 31 digits; therefore, the precision plus the scale must be 31 digits or less. If you specify a scale, you must also specify a precision. By default, the scale is zero.

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