func (rc *OCI8Rows) ColumnTypeLength(i int) (length int64, ok bool) {
var p unsafe.Pointer
var lp C.ub2
rp := C.WrapOCIParamGet(rc.s.s, C.OCI_HTYPE_STMT, (*C.OCIError)(rc.s.c.err), C.ub4(i+1))
if rp.rv != C.OCI_SUCCESS {
return 0, false
}
p = rp.ptr
lpr := C.WrapOCIAttrGetUb2(p, C.OCI_DTYPE_PARAM, C.OCI_ATTR_DATA_SIZE, (*C.OCIError)(rc.s.c.err))
if lpr.rv != C.OCI_SUCCESS {
return 0, false
}
lp = lpr.num
return int64(lp), true
}
func (s *OCI8Stmt) Query(args []driver.Value) (rows driver.Rows, err error) {
var (
fbp []oci8bind
)
if fbp, err = s.bind(args); err != nil {
return nil, err
}
defer freeBoundParameters(fbp)
iter := C.ub4(1)
if retUb2 := C.WrapOCIAttrGetUb2(s.s, C.OCI_HTYPE_STMT, C.OCI_ATTR_STMT_TYPE, (*C.OCIError)(s.c.err)); retUb2.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else if retUb2.num == C.OCI_STMT_SELECT {
iter = 0
}
// set the row prefetch. Only one extra row per fetch will be returned unless this is set.
if prefetch_size := C.ub4(s.c.attrs.Get("prefetch_rows").(int)); prefetch_size > 0 {
if rv := C.WrapOCIAttrSetUb4(s.s, C.OCI_HTYPE_STMT, prefetch_size, C.OCI_ATTR_PREFETCH_ROWS, (*C.OCIError)(s.c.err)); rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
}
}
// if non-zero, oci will fetch rows until the memory limit or row prefetch limit is hit.
// useful for memory constrained systems
if prefetch_memory := C.ub4(s.c.attrs.Get("prefetch_memory").(int64)); prefetch_memory > 0 {
if rv := C.WrapOCIAttrSetUb4(s.s, C.OCI_HTYPE_STMT, prefetch_memory, C.OCI_ATTR_PREFETCH_MEMORY, (*C.OCIError)(s.c.err)); rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
}
}
mode := C.ub4(C.OCI_DEFAULT)
if !s.c.inTransaction {
mode = mode | C.OCI_COMMIT_ON_SUCCESS
}
if rv := C.OCIStmtExecute(
(*C.OCISvcCtx)(s.c.svc),
(*C.OCIStmt)(s.s),
(*C.OCIError)(s.c.err),
iter,
0,
nil,
nil,
mode); rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
}
var rc int
if retUb2 := C.WrapOCIAttrGetUb2(s.s, C.OCI_HTYPE_STMT, C.OCI_ATTR_PARAM_COUNT, (*C.OCIError)(s.c.err)); retUb2.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
rc = int(retUb2.num)
}
oci8cols := make([]oci8col, rc)
for i := 0; i < rc; i++ {
var p unsafe.Pointer
var tp C.ub2
var lp C.ub2
if rp := C.WrapOCIParamGet(s.s, C.OCI_HTYPE_STMT, (*C.OCIError)(s.c.err), C.ub4(i+1)); rp.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
p = rp.ptr
}
if tpr := C.WrapOCIAttrGetUb2(p, C.OCI_DTYPE_PARAM, C.OCI_ATTR_DATA_TYPE, (*C.OCIError)(s.c.err)); tpr.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
tp = tpr.num
}
if nsr := C.WrapOCIAttrGetString(p, C.OCI_DTYPE_PARAM, C.OCI_ATTR_NAME, (*C.OCIError)(s.c.err)); nsr.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].name = string((*[1 << 30]byte)(unsafe.Pointer(nsr.ptr))[0:int(nsr.size)])
}
if lpr := C.WrapOCIAttrGetUb2(p, C.OCI_DTYPE_PARAM, C.OCI_ATTR_DATA_SIZE, (*C.OCIError)(s.c.err)); lpr.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
lp = lpr.num
}
/*
var (
defp *C.OCIDefine
)
*/
*s.defp = nil
switch tp {
case C.SQLT_CHR, C.SQLT_AFC, C.SQLT_VCS, C.SQLT_AVC:
// TODO: transfer as clob, read all bytes in loop
// lp *= 4 // utf8 enc
oci8cols[i].kind = C.SQLT_CHR // tp
oci8cols[i].size = int(lp) * 4 // utf8 enc
oci8cols[i].pbuf = C.malloc(C.size_t(oci8cols[i].size) + 1)
case C.SQLT_BIN:
oci8cols[i].kind = C.SQLT_BIN
oci8cols[i].size = int(lp)
oci8cols[i].pbuf = C.malloc(C.size_t(oci8cols[i].size))
case C.SQLT_NUM:
oci8cols[i].kind = C.SQLT_CHR
oci8cols[i].size = int(lp * 4)
oci8cols[i].pbuf = C.malloc(C.size_t(oci8cols[i].size) + 1)
case C.SQLT_IBDOUBLE, C.SQLT_IBFLOAT:
oci8cols[i].kind = C.SQLT_IBDOUBLE
oci8cols[i].size = int(8)
oci8cols[i].pbuf = C.malloc(8)
case C.SQLT_CLOB, C.SQLT_BLOB:
// allocate +io buffers + ub4
size := int(unsafe.Sizeof(unsafe.Pointer(nil)) + unsafe.Sizeof(C.ub4(0)))
if oci8cols[i].size < blobBufSize {
size += blobBufSize
} else {
size += oci8cols[i].size
}
if ret := C.WrapOCIDescriptorAlloc(s.c.env, C.OCI_DTYPE_LOB, C.size_t(size)); ret.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].kind = tp
oci8cols[i].size = int(unsafe.Sizeof(unsafe.Pointer(nil)))
oci8cols[i].pbuf = ret.extra
*(*unsafe.Pointer)(ret.extra) = ret.ptr
}
// testing
// case C.SQLT_DAT:
//
// oci8cols[i].kind = C.SQLT_DAT
// oci8cols[i].size = int(lp)
// oci8cols[i].pbuf = C.malloc(C.size_t(lp))
//
case C.SQLT_TIMESTAMP, C.SQLT_DAT:
if ret := C.WrapOCIDescriptorAlloc(s.c.env, C.OCI_DTYPE_TIMESTAMP, C.size_t(unsafe.Sizeof(unsafe.Pointer(nil)))); ret.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].kind = C.SQLT_TIMESTAMP
oci8cols[i].size = int(unsafe.Sizeof(unsafe.Pointer(nil)))
oci8cols[i].pbuf = ret.extra
*(*unsafe.Pointer)(ret.extra) = ret.ptr
}
case C.SQLT_TIMESTAMP_TZ, C.SQLT_TIMESTAMP_LTZ:
if ret := C.WrapOCIDescriptorAlloc(s.c.env, C.OCI_DTYPE_TIMESTAMP_TZ, C.size_t(unsafe.Sizeof(unsafe.Pointer(nil)))); ret.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].kind = C.SQLT_TIMESTAMP_TZ
oci8cols[i].size = int(unsafe.Sizeof(unsafe.Pointer(nil)))
oci8cols[i].pbuf = ret.extra
*(*unsafe.Pointer)(ret.extra) = ret.ptr
}
case C.SQLT_INTERVAL_DS:
if ret := C.WrapOCIDescriptorAlloc(s.c.env, C.OCI_DTYPE_INTERVAL_DS, C.size_t(unsafe.Sizeof(unsafe.Pointer(nil)))); ret.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].kind = C.SQLT_INTERVAL_DS
oci8cols[i].size = int(unsafe.Sizeof(unsafe.Pointer(nil)))
oci8cols[i].pbuf = ret.extra
*(*unsafe.Pointer)(ret.extra) = ret.ptr
}
case C.SQLT_INTERVAL_YM:
if ret := C.WrapOCIDescriptorAlloc(s.c.env, C.OCI_DTYPE_INTERVAL_YM, C.size_t(unsafe.Sizeof(unsafe.Pointer(nil)))); ret.rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
} else {
oci8cols[i].kind = C.SQLT_INTERVAL_YM
oci8cols[i].size = int(unsafe.Sizeof(unsafe.Pointer(nil)))
oci8cols[i].pbuf = ret.extra
*(*unsafe.Pointer)(ret.extra) = ret.ptr
}
case C.SQLT_RDD: // rowid
lp = 40
oci8cols[i].pbuf = C.malloc(C.size_t(lp) + 1)
oci8cols[i].kind = C.SQLT_CHR // tp
oci8cols[i].size = int(lp + 1)
default:
oci8cols[i].pbuf = C.malloc(C.size_t(lp) + 1)
oci8cols[i].kind = C.SQLT_CHR // tp
oci8cols[i].size = int(lp + 1)
}
if rv := C.OCIDefineByPos(
(*C.OCIStmt)(s.s),
s.defp,
(*C.OCIError)(s.c.err),
C.ub4(i+1),
oci8cols[i].pbuf,
C.sb4(oci8cols[i].size),
oci8cols[i].kind,
unsafe.Pointer(&oci8cols[i].ind),
&oci8cols[i].rlen,
nil,
C.OCI_DEFAULT); rv != C.OCI_SUCCESS {
return nil, ociGetError(s.c.err)
}
}
return &OCI8Rows{s, oci8cols, false}, nil
}
// ColumnTypeDatabaseTypeName implement RowsColumnTypeDatabaseTypeName.
func (rc *OCI8Rows) ColumnTypeDatabaseTypeName(i int) string {
var p unsafe.Pointer
var tp C.ub2
rp := C.WrapOCIParamGet(rc.s.s, C.OCI_HTYPE_STMT, (*C.OCIError)(rc.s.c.err), C.ub4(i+1))
if rp.rv == C.OCI_SUCCESS {
p = rp.ptr
}
tpr := C.WrapOCIAttrGetUb2(p, C.OCI_DTYPE_PARAM, C.OCI_ATTR_DATA_TYPE, (*C.OCIError)(rc.s.c.err))
if tpr.rv == C.OCI_SUCCESS {
tp = tpr.num
}
switch tp {
case C.SQLT_CHR:
return "SQLT_CHR"
case C.SQLT_NUM:
return "SQLT_NUM"
case C.SQLT_INT:
return "SQLT_INT"
case C.SQLT_FLT:
return "SQLT_FLT"
case C.SQLT_STR:
return "SQLT_STR"
case C.SQLT_VNU:
return "SQLT_VNU"
case C.SQLT_LNG:
return "SQLT_LNG"
case C.SQLT_VCS:
return "SQLT_VCS"
case C.SQLT_DAT:
return "SQLT_DAT"
case C.SQLT_VBI:
return "SQLT_VBI"
case C.SQLT_BFLOAT:
return "SQLT_BFLOAT"
case C.SQLT_BDOUBLE:
return "SQLT_BDOUBLE"
case C.SQLT_BIN:
return "SQLT_BIN"
case C.SQLT_LBI:
return "SQLT_LBI"
case C.SQLT_UIN:
return "SQLT_UIN"
case C.SQLT_LVC:
return "SQLT_LVC"
case C.SQLT_LVB:
return "SQLT_LVB"
case C.SQLT_AFC:
return "SQLT_AFC"
case C.SQLT_AVC:
return "SQLT_AVC"
case C.SQLT_RDD:
return "SQLT_RDD"
case C.SQLT_NTY:
return "SQLT_NTY"
case C.SQLT_REF:
return "SQLT_REF"
case C.SQLT_CLOB:
return "SQLT_CLOB"
case C.SQLT_BLOB:
return "SQLT_BLOB"
case C.SQLT_FILE:
return "SQLT_FILE"
case C.SQLT_VST:
return "SQLT_VST"
case C.SQLT_ODT:
return "SQLT_ODT"
case C.SQLT_DATE:
return "SQLT_DATE"
case C.SQLT_TIMESTAMP:
return "SQLT_TIMESTAMP"
case C.SQLT_TIMESTAMP_TZ:
return "SQLT_TIMESTAMP_TZ"
case C.SQLT_INTERVAL_YM:
return "SQLT_INTERVAL_YM"
case C.SQLT_INTERVAL_DS:
return "SQLT_INTERVAL_DS"
case C.SQLT_TIMESTAMP_LTZ:
return "SQLT_TIMESTAMP_LTZ"
}
return ""
}