c-treeDB API API for C

ctdbGetFieldAsBlob

Retrieve field as blob value.

Declaration

CTDBRET ctdbGetFieldAsBlob(CTHANDLE Handle, NINT FieldNbr,

pCTBLOB pValue)

Description

ctdbGetFieldAsBlob() retrieves field as a blob value. Any field may be retrieved as a CTBLOB, and when this happens, no conversion is applied, and the binary value of the field is copied into the binary buffer.

Use ctdbSetFieldAsBlob() to set field as a CTBLOB value.

• Handle [in] the record handle.
• FieldNbr [in] the field number to be retrieved. To retrieve the field number given the record handle, use ctdbGetFieldNumberByName().
• pValue [out] the pointer to the blob value.

Returns

ctdbGetFieldAsBlob() returns CTDBRET_OK if successful, or the c-tree error code on failure.

See also

ctdbAllocRecord(), ctdbGetFieldAsBool(), ctdbGetFieldAsSigned(), ctdbGetFieldAsUnsigned(), ctdbGetFieldAsDate(), ctdbGetFieldAsTime(), ctdbGetFieldAsMoney(), ctdbGetFieldAsFloat(), ctdbGetFieldAsDateTime(), ctdbGetFieldAsString(), ctdbSetFieldAsBlob()