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Results for BLOB


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Database SQL Language Reference, 11g Release 2 (11.2)

Data Types

BLOB Data TypeThe BLOB data type stores unstructured binary large objects. BLOB objects can be thought of as … bitstreams with no character set semantics. BLOB objects can store binary data up to (4 gigabytes -1 … creating a LOB column, then this is equivalent to (4 gigabytes - 1) * (database block size). BLOB … Interface (OCI)

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

Blob()Blob class constructor. Syntax Description Blob(); Creates a NULL Blob object. Blob( const … Connection *connectionp); Creates an uninitialized Blob object. Blob( const Blob &srcBlob); Creates a copy … of a Blob object. Parameter Description connectionp

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

write()Writes data from a buffer into a BLOB. This method implicitly opens the BLOB, copies the buffer … into the BLOB, and implicitly closes the BLOB. If the BLOB is open, use writeChunk() instead. The … to be written to the BLOB. buffer The buffer containing the data to be written to the

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

setContentType()Sets the content type of the Blob. If the Blob is not a SecureFile, throws an exception. Syntax … void setContentType( const string contenttype); Parameter Description contenttype The content type of the Blob. an ASCII Mime compliant string.

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

isInitialized()Tests whether the Blob object is initialized. If the Blob object is initialized, then TRUE is

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

setEmpty()Sets the Blob object to empty. Syntax Description void setEmpty(); Sets the Blob object to empty … . void setEmpty( const Connection* connectionp); Sets the Blob object to empty and initializes the … connection pointer to the passed parameter. Parameter Description connectionp The new connection pointer for the BLOB

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

getStream()Returns a Stream object from the BLOB. If a stream is open, it is disallowed to open another stream … on Blob object, so the user must always close the stream before performing any Blob object … Description offset The starting position at which to begin reading data from the BLOB. If offset is not … specified,

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

append()Appends a BLOB to the end of the current BLOB. Syntax void append( const Blob &srcBlob); Parameter … Description srcBlob The BLOB object to be appended to the current BLOB object.

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

getOptions()Returns the BLOB 's LobOptionValue for a specified LobOptionType. Throws an exception if attempting … stores the BLOB. Syntax LobOptionValue getOptions( LobOptionType optType); Parameter Description

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

operator!= ()Compares two Blob objects for inequality. Two Blob objects are equal if they both refer to the same … BLOB. Two NULL Blob objects are not considered equal. If the Blob objects are not equal, then TRUE … is returned; otherwise, FALSE is returned. Syntax bool operator!=( const Blob &srcBlob)

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

length()Returns the number of bytes in the BLOB. Syntax unsigned int length() const;

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

open()Opens the BLOB in read/write or read-only mode. Syntax void open( LobOpenMode mode … = OCCI_LOB_READWRITE); Parameter Description mode The mode the BLOB is to be opened in. Valid values are: OCCI_LOB_READWRITE OCCI_LOB_READONLY

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

Blob ClassBlob Cl ass The Blob class defines the common properties of objects of type BLOB. A BLOB is a large … binary object stored as a column value in a row of a database table. A Blob object contains a … logical pointer to a BLOB, not the BLOB itself. Methods of the Blob

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

getContentType()Returns the content type of the Blob. If a content type has not been assigned, returns a NULL string. Syntax string getContentType();

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

Method SummaryBlob() Blob class constructor. append() Appends a specified BLOB to the end of the current BLOB … . close() Closes a previously opened BLOB. closeStream() Closes the Stream object obtained from the BLOB … . copy() Copies a specified portion of a BFILE or BLOB into the

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

isOpen()Tests whether the BLOB is open. If the BLOB is open, then TRUE is returned; otherwise, FALSE is returned. Syntax bool isOpen() const;

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

setOptions()and deduplication of BLOB s. See Table 7-1, \"Values of Type LobOptionType\" and Table 7-2 … configured on the database column or partition that stores the BLOB. Throws an exception if … attempting to turn off encryption in an encrypted BLOB column. Syntax void setOptions( LobOptionType

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

isNull()Tests whether the Blob object is atomically NULL. If the Blob object is atomically NULL, then TRUE

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

close()Closes a BLOB. Syntax void close();

Oracle C++ Call Interface Programmer's Guide, 11g Release 2 (11.2)

Blob Class

setNull()Sets the Blob object to atomically NULL. Syntax void setNull();