AST_COLUMNNAME

Get the name of the column at a given index within the Table

Description:

This function returns a string holding the name of the column with the given index within the Table.

This function is intended primarily as a means of iterating round all the columns in a Table. For this purpose, the number of columns in the Table is given by the Ncolumn attribute of the Table. This function could then be called in a loop, with the index value going from one to Ncolumn.

Note, the index associated with a column decreases monotonically with the age of the column: the oldest Column in the Table will have index one, and the Column added most recently to the Table will have the largest index.

Invocation

RESULT = AST_COLUMNNAME( THIS, INDEX, STATUS )

Arguments

THIS = INTEGER (Given)
Pointer to the Table.
INDEX = INTEGER (Given)
The index into the list of columns. The first column has index one, and the last has index " Ncolumn" .
STATUS = INTEGER (Given and Returned)
The global status.

Returned Value

AST_COLUMNNAME = CHARACTER ( AST__SZCHR )
The upper case column name.

Notes: