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CLOB Data Type → You use the CLOB data type to store large blocks of character data in the database, inline or out … -of-line. Both fixed-width and variable-width character sets are supported. Every CLOB variable stores … a locator, which points to a large block of character data. CLOB s participate fully in … rolled back. CLOB
CLOB Datatype → The CLOB datatype stores single-byte and multibyte character data. Both fixed-width and variable … -width character sets are supported, and both use the database character set. CLOB objects can store up … - 1) * (database block size). CLOB objects have full transactional support. Changes made through … SQL, the DBMS_LOB package,
CLOB and NCLOB Datatypes → The CLOB and NCLOB datatypes store up to 128 terabytes of character data in the database. CLOB s … provide efficient character-based random access on CLOBs and NCLOBs. CLOB s and NCLOB s participate … fully in transactions. Changes made to a CLOB or NCLOB value by the DBMS_LOB package, PL/SQL, or the OCI … can
Clob() → Clob class constructor. Syntax Description Clob(); Creates a NULL Clob object. Clob( const … Connection *connectionp); Creates an uninitialized Clob object. Clob( const Clob *srcClob); Creates a copy … of a Clob object. Parameter Description connectionp
getStream() → Returns a Stream object from the CLOB. If a stream is already open, it is disallowed to open … another stream on CLOB object, so the user must always close the stream before performing any Clob object … reading data from the CLOB. If offset is not specified, the data is written from the beginning of the … CLOB.
length() → Returns the number of characters in the CLOB. Syntax unsigned int length() const;
operator=() → Assigns a CLOB to the current CLOB. The source CLOB gets copied to the destination CLOB only when … the destination CLOB gets stored in the table. Syntax Clob& operator=( const Clob &srcClob … ); Parameter Description srcClob The Clob from which the
read() → Reads a part or all of the CLOB into a buffer. Returns the actual number of characters read for … offset=1) const; Reads a part or all of the CLOB into a buffer. unsigned int read( unsigned int amt … CLOB into a buffer; globalization enabled. Should be called after setting character set to OCCIUTF16 … be read. from the CLOB.
trim() → Truncates the CLOB to the new length specified. Syntax void trim( unsigned int newlen); Parameter … Description newlen The new length of the CLOB. Valid values are numbers less than or equal to the current length of the CLOB.
setOptions() → not configured on the database column or partition that stores the CLOB. Will throw an exception if … attempting to turn off encryption in an encrypted CLOB column. Syntax void setOptions( LobOptionType
writeChunk() → Writes data from a buffer into a previously opened CLOB. The actual number of characters written is … from a buffer into a previously opened CLOB. unsigned int writeChunk( unsigned int amt, utext … *buffer, unsigned int bufsize, unsigned int offset=1); Writes data from a UTF16 buffer into a CLOB … UTF8) buffer The buffer containing
close() → Closes a CLOB. Syntax void close();
getChunkSize() → Returns the smallest data size to perform efficient writes to the CLOB. Syntax unsigned int getChunkSize() const;
Method Summary → Clob() Clob class constructor. append() Appends a Clob at the end of the current Clob. close … () Closes a previously opened Clob. closeStream() Closes the Stream object obtained from the current Clob … . copy() Copies all or a portion of a Clob or BFILE into the current
append() → Appends a CLOB to the end of the current CLOB. Syntax void append( const Clob &srcClob); Parameter … Description srcClob The CLOB to be appended to the current CLOB.
getOptions() → Returns the CLOB 's LobOptionValue for a specified LobOptionType. Will throw an exception if … that stores the CLOB. Syntax LobOptionValue getOptions( LobOptionType optType); Parameter Description
isInitialized() → Tests whether the Clob object is initialized. If the Clob object is initialized, TRUE is returned
setCharSetId() → Sets the Character set Id associated with Clob. The characterset id set will be used for read/write
setCharSetIdUString() → Sets the Character set Id associated with Clob. used when the environment's characterset is UTF16
setCharSetForm() → Sets the character set form associated with the CLOB. The charset form set will be used for read … be used. Syntax void setCharSetForm( CharSetForm csfrm ); Parameter Description csfrm The charset form for Clob.