Oracle C++ Call Interface Programmer's Guide

Data Conversions
Table 4–5 Data Conversions (Cont.)
Internal Datatypes
External Datatypes
104 ROWID Desc. I(1) I/O I(1)
OCCI Number I/O 4 I/O I I/O 4
OCCI Bytes I/O 6
1
VARCHAR2
Data Conversions for LOB Datatypes
4-22 Oracle C++ Call Interface Programmer’s Guide
I 5, 6 I/O I/O I/O 6
OCCI Date
OCCI Timestamp
I/O I I/O I/O
STL string I/O I/O I/O I/O1 I/O2 I/O3 I/O3 Conversion valid for...
I = Input only.
O = Output only.
I/O = Input or Output.
2
NUMBER
Notes:
8
LONG
Table 4–6 Data Conversions for LOBs
INTERNAL DATATYPES
EXTERNAL DATATYPES CLOB BLOB
VARCHAR I/O
CHAR I/O
LONG I/O
LONG VARCHAR I/O
STL STRING I/O
11
ROWID
12
DATE
23
RAW
RAW I/O
VARRAW I/O
24
96
LONG RAW CHAR
1. For input, host string must be in Oracle ROWID format. On output, column value
is returned in Oracle ROWID format.
2. For input, host string must be in the Oracle DATE character format. On output,
column value is returned in Oracle DATE format.
3. For input, host string must be in hexadecimal format. On output, column value is
returned in hexadecimal format.
4. For output, column value must represent a valid number.
5. Length must be less than or equal to 2000 characters.
6. On input, column value is stored in hexadecimal format. On output, column value
must be in hexadecimal format.