TBTOP—set the row pointer to the top

The TBTOP service sets the current row pointer (CRP) to the top of a table, ahead of the first row.

Command invocation format


>>-ISPEXEC--TBTOP--table-name----------------------------------><


>>-CALL--ISPEXEC--(buf-len,--buffer);--------------------------><


>>-CALL--ISPLINK--('TBTOPbbb'--,--table-name);-----------------><

table-name: Specifies the name of the table to be used.
buf-len: Specifies a fullword fixed binary integer containing the length of "buffer".
buffer: Specifies a buffer containing the name of the service and its parameters in the same form as they would appear in an ISPEXEC call for a command procedure.

These return codes are possible:

For the table TELBOOK, move the current row pointer (CRP) to the row immediately before its first row.

ISPEXEC TBTOP TELBOOK

Set the program variable BUFFER to contain:

TBTOP TELBOOK

Set program variable BUFLEN to the length of the variable BUFFER. Issue the command:

CALL ISPEXEC (BUFLEN, BUFFER);

or alternately

CALL ISPLINK ('TBTOP   ','TELBOOK ');