Response capabilities

Table 2-2 describes each response capability.

Response capabilities indicate the kinds of responses the client does not want to receive.

**Table 2-2: Response capabilities**
CS_RESPONSE capability	Meaning	Capability relates to
CS_CON_NOINBAND	No in-band (non-expedited) attentions	Connections
CS_CON_NOOOB	No out-of-band (expedited) attentions	Connections
CS_NO_SRVPKTSIZE	No server-specified packetsize	Connections
CS_DATA_NOBIN	No binary datatype	Datatypes
CS_DATA_NOVBIN	No variable-length binary type	Datatypes
CS_DATA_NOLBIN	No long variable-length binary datatype	Datatypes
CS_DATA_NOBIT	No bit datatype	Datatypes
CS_DATA_NOBOUNDARY	No boundary datatype	Datatypes
CS_DATA_NOCHAR	No character datatype	Datatypes
CS_DATA_NOVCHAR	No variable-length character datatype	Datatypes
CS_DATA_NOLCHAR	No long variable-length character datatype	Datatypes
CS_DATA_NODATE	No date datatype	Datatypes
CS_DATA_NODATE4	No short datetime datatype	Datatypes
CS_DATA_NODATE8	No datetime datatype	Datatypes
CS_DATA_NODATETIMEN	No null datetime values	Datatypes
CS_DATA_NODEC	No decimal datatype	Datatypes
CS_DATA_NOFLT4	No 4-byte float datatype	Datatypes
CS_DATA_NOFLT8	No 8-byte float datatype	Datatypes
CS_DATA_NOIMAGE	No image datatype	Datatypes
CS_DATA_NOINT1	No tiny integer datatype	Datatypes
CS_DATA_NOINT2	No small integer datatype	Datatypes
CS_DATA_NOINT4	No integer datatype	Datatypes
CS_DATA_NOINT8	No big integer datatype	Datatypes
CS_DATA_NOINTN	No null integers	Datatypes
CS_DATA_NOMNY4	No short money datatype	Datatypes
CS_DATA_NOMNY8	No money datatype	Datatypes
CS_DATA_NOMONEYN	No null money values	Datatypes
CS_DATA_NONUM	No numeric datatype	Datatypes
CS_DATA_NOSENSITIVITY	No sensitivity datatype	Datatypes
CS_DATA_NOTEXT	No text datatype	Datatypes
CS_DATA_NOTIME	No time datatype	Datatype
CS_DATA_NOUCHAR	No 2-byte character datatype	Datatypes
CS_DATA_NOUNITEXT	No Unitext datatype	Datatypes
CS_DATA_NOXML	No XML datatype	Datatypes
CS_RES_NOEED	No extended error results	Results
CS_RES_NOMSG	No message results	Results
CS_RES_NOPARAM	No result parameters	Results
CS_RES_NOTDSDEBUG	No TDS debug token	Results
CS_NO_LARGEIDENT	No large identifiers	Commands
CS_NOWIDETABLES	No increase in column size or number of columns per table	Commands

When an Open Server application defines the client data format using the srv_descfmt routine, Open Server verifies that the response capability for the relevant datatype is not set. If it is set, either the client has requested the server not to send results pertaining to that datatype or the TDS version of the client connection does not support that datatype. In such cases, Open Server raises an error and srv_descfmt returns CS_FAIL.