1 Version 4.0 -- 5/1/89 dbaltop
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NAME: dbaltop
FUNCTION:
Return the type of aggregate operator for a particular compute
column.
SYNTAX:
int dbaltop(dbproc, computeid, column)
DBPROCESS *dbproc;
int computeid;
int column;
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COMMENTS:
o This routine returns the type of aggregate operator for a par-
ticular column in a compute. For example, given the SQL state-
ment:
select dept, name from employee
order by dept, name
compute count(name) by dept
the call dbaltop(dbproc, 1, 1) will return the token value for
count since the first aggregate operator in the first compute
is a count.
o You can convert the token value to a readable token string with
dbprtype(). See the dbprtype() manual page for a list of all
token values and their equivalent token strings.
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PARAMETERS:
dbproc - A pointer to the DBPROCESS structure that provides the
connection for a particular front-end/SQL Server process. It
contains all the information that DB-Library uses to manage
communications and data between the front end and SQL Server.
computeid - The id that identifies the particular compute row of
interest. A SQL SELECT statement may have multiple COMPUTE
clauses, each of which returns a separate compute row. The
computeid corresponding to the first COMPUTE clause in a
SELECT is 1. The computeid is returned by dbnextrow() or
dbgetrow().
column - The number of the column of interest. The first column
is number 1.
RETURNS:
A token value for the type of the compute column's aggregate
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operator.
SEE ALSO:
dbadata, dbadlen, dbaltlen, dbnextrow, dbnumalts, dbprtype