func (def *defRowid) define(position int, rset *Rset) error {
def.rset = rset
// using a character host variable of width between 19
// (18 bytes plus the null-terminator) and 4001 as the
// host bind variable for universal ROWID.
if len(def.buf) < 4001 {
def.buf = make([]byte, 4001)
}
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.buf[0]), //void *valuep,
C.LENGTH_TYPE(len(def.buf)), //sb8 value_sz,
C.SQLT_STR, //ub2 dty,
nil, //void *indp,
nil, //ub2 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defBool) define(position int, columnSize int, isNullable bool, rset *Rset) error {
def.rset = rset
def.isNullable = isNullable
if cap(def.buf) < columnSize {
def.buf = make([]byte, columnSize)
}
//Log.Infof("defBool.define(position=%d, columnSize=%d)", position, columnSize)
// Create oci define handle
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.buf[0]), //void *valuep,
C.LENGTH_TYPE(columnSize), //sb8 value_sz,
C.SQLT_AFC, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
nil, //ub2 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defBfile) define(position int, rset *Rset) error {
def.rset = rset
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.ociLobLocator), //void *valuep,
C.LENGTH_TYPE(unsafe.Sizeof(def.ociLobLocator)), //sb8 value_sz,
C.SQLT_FILE, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
nil, //ub4 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defUint64) define(position int, isNullable bool, rset *Rset) error {
def.rset = rset
def.isNullable = isNullable
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.ociNumber), //void *valuep,
C.LENGTH_TYPE(C.sizeof_OCINumber), //sb8 value_sz,
C.SQLT_VNU, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
nil, //ub2 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defString) define(position int, columnSize int, isNullable bool, rset *Rset) error {
def.rset = rset
def.isNullable = isNullable
//Log.Infof("defString position=%d columnSize=%d", position, columnSize)
n := columnSize
// AL32UTF8: one db "char" can be 4 bytes on wire, esp. if the database's
// character set is not AL32UTF8 (e.g. some 8bit fixed width charset), and
// the column is VARCHAR2 with byte semantics.
//
// For example when the db's charset is EE8ISO8859P2, then a VARCHAR2(1) can
// contain an "ű", which is 2 bytes AL32UTF8.
if !rset.stmt.ses.srv.dbIsUTF8 {
n *= 2
}
if n == 0 {
n = 2
}
if n%2 != 0 {
n++
}
if def.buf == nil || cap(def.buf) < n {
def.buf = make([]byte, n)
}
// Create oci define handle
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.buf[0]), //void *valuep,
C.LENGTH_TYPE(n), //sb8 value_sz,
C.SQLT_CHR, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
nil, //ub2 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defLongRaw) define(position int, bufSize uint32, isNullable bool, rset *Rset) error {
def.rset = rset
def.isNullable = isNullable
def.buf = make([]byte, int(bufSize))
//logF(true, "position %v, def.buf %v", position, len(def.buf))
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.buf[0]), //void *valuep,
C.LENGTH_TYPE(len(def.buf)), //sb8 value_sz,
C.SQLT_LBI, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
&def.returnLength, //ub4 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r == C.OCI_ERROR {
return def.rset.stmt.ses.srv.env.ociError()
}
return nil
}
func (def *defLob) define(position int, charsetForm C.ub1, sqlt C.ub2, gct GoColumnType, rset *Rset) error {
def.rset = rset
def.gct = gct
def.sqlt = sqlt
def.charsetForm = charsetForm
def.ociLobLocator = nil
r := C.OCIDEFINEBYPOS(
def.rset.ocistmt, //OCIStmt *stmtp,
&def.ocidef, //OCIDefine **defnpp,
def.rset.stmt.ses.srv.env.ocierr, //OCIError *errhp,
C.ub4(position), //ub4 position,
unsafe.Pointer(&def.ociLobLocator), //void *valuep,
C.LENGTH_TYPE(unsafe.Sizeof(def.ociLobLocator)), //sb8 value_sz,
sqlt, //ub2 dty,
unsafe.Pointer(&def.null), //void *indp,
nil, //ub2 *rlenp,
nil, //ub2 *rcodep,
C.OCI_DEFAULT) //ub4 mode );
if r != C.OCI_SUCCESS {
return def.rset.stmt.ses.srv.env.ociError()
}
prefetchLength := C.boolean(C.TRUE)
return def.rset.stmt.ses.srv.env.setAttr(unsafe.Pointer(def.ocidef), C.OCI_HTYPE_DEFINE, unsafe.Pointer(&prefetchLength), 0, C.OCI_ATTR_LOBPREFETCH_LENGTH)
}