VTSFIRST and VTSLAST are two parameters that can be used to control the sequence in which tableBASE searches libraries when DataKinetics VTS product is installed.
VTSFIRST is the name of the VTS-TSR that is to be searched for tables before searching any libraries listed in the tableBASE library-list. VTSLAST is the name of the VTS-TSR that is to be searched for tables after searching any libraries listed in the tableBASE library-list.
If you wish to override the installation default for this parameter, it is strongly recommended that you use the TBOPT DD statement described later in this chapter to do so. If you set the VTSFIRST parameter by tailoring the installation parameters at installation time, problems may occur. For example, any processes that operate on the library copy of a table that is open in VTS may abend with a tableBASE error code of 3 or may return unpredictable results.
The delivered defaults are VTSFIRST, VTSLAST set to null strings. This sets them to be ignored.
This option applies to this region’s users, regardless of which TSR they access.
To see how this method to access VTS-TSRs compares to other methods see Virtual Table Share (VTS-TSR)
These options can be specified for all interfaces except VTS.