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Results for BLOB


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Database PL/SQL Language Reference, 11g Release 1 (11.1)

PL/SQL Data Types

BLOB Data TypeYou use the BLOB data type to store large binary objects in the database, inline or out-of-line … . Every BLOB variable stores a locator, which points to a large binary object. BLOB s participate fully … committed or rolled back. BLOB locators can span transactions (for reads only), but they cannot span sessions.

Database Concepts, 11g Release 1 (11.1)

Oracle Data Types

BLOB DatatypeThe BLOB datatype stores unstructured binary data in the database. BLOB s can store up to 128 … terabytes of binary data. BLOB s participate fully in transactions. Changes made to a BLOB value by the … DBMS_LOB package, PL/SQL, or the OCI can be committed or rolled back. However, BLOB locators cannot

Database SQL Language Reference, 11g Release 1 (11.1)

Datatypes

BLOB DatatypeThe BLOB datatype 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 1 (11.1)

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 1 (11.1)

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 1 (11.1)

Blob Class

copy()Copies a part or all of a BFILE or BLOB into the current BLOB. Syntax Description void copy( const … ); Copies a part of a BFILE into the current BLOB. void copy( const Blob &srcBlob, unsigned int numBytes … , unsigned int dstOffset = 1, unsigned int srcOffset = 1); Copies a part of a BLOB into the current

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

Blob Class

writeChunk()Writes data from a buffer into a previously opened BLOB. The actual number of bytes written is … BLOB. buffer The buffer containing the data to be written to the BLOB. buffsize The size of the buffer … containing the data to be written to the BLOB. Valid values are numbers greater than or equal to amt … . offset

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

operator=()Assigns a BLOB to the current BLOB. The source BLOB gets copied to the destination BLOB only when … the destination BLOB gets stored in the table. Syntax Blob& operator=( const Blob &srcBlob … ); Parameter Description srcBlob The source BLOB from which

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

setOptions()and deduplication of BLOB s. See Table 7-1, \"Values of Type LobOptionType\" and Table 7-2 … not configured on the database column or partition that stores the BLOB. Will throw an exception if … attempting to turn off encryption in an encrypted BLOB column. Syntax void setOptions

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

getChunkSize()Returns the smallest data size to perform efficient writes to the BLOB. Syntax unsigned int getChunkSize() const;

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

closeStream()Closes the Stream object obtained from the BLOB. Syntax void closeStream( Stream *stream); Parameter Description stream The Stream to be closed.

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

operator==()Compares two Blob objects for equality. 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 equal, then TRUE is … returned; otherwise, FALSE is returned. Syntax bool operator==( const Blob &srcBlob)

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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 1 (11.1)

Blob Class

trim()Truncates the BLOB to the new length specified. Syntax void trim( unsigned int newlen); Parameter … Description newlen The new length of the BLOB. Valid values are numbers less than or equal to the current length of the BLOB.

Oracle C++ Call Interface Programmer's Guide, 11g Release 1 (11.1)

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