V$SQL_BIND_CAPTURE displays information on bind variables used by SQL cursors. Each row in the view contains information for one bind variable defined in a cursor. This includes:

  • Reference to the cursor defining the bind variable

    (hash_value, address) for the parent cursor and (hash_value, child_address) for the child cursor.

  • Bind metadata

    Name, position, datatype, character set ID, precision, scale, and maximum length of the bind variable.

  • Bind data

    One of the bind values used for the bind variable during a past execution of its associated SQL statement. Bind values are not always captured for this view. Bind values are displayed by this view only when the type of the bind variable is simple (this excludes LONG, LOB, and ADT datatypes) and when the bind variable is used in the WHERE or HAVING clauses of the SQL statement.

Bind capture is disabled when the STATISTICS_LEVEL initialization parameter is set to BASIC. This view can be joined with V$SQLAREA on (HASH_VALUE, ADDRESS) and with V$SQL on (HASH_VALUE, CHILD_ADDRESS).

Column Datatype Description
ADDRESS RAW(4 | 8) Address of the parent cursor
HASH_VALUE NUMBER Hash value of the parent cursor in the library cache. The hash value is a fixed index for the view and should always be used to speed up the access to the view.
SQL_ID VARCHAR2(13) SQL identifier of the parent cursor in the library cache
CHILD_ADDRESS RAW(4 | 8) Address of the parent cursor
CHILD_NUMBER NUMBER Child cursor number
NAME VARCHAR2(30) Name of the bind variable
POSITION NUMBER Position of the bind variable in the SQL statement
DUP_POSITION NUMBER If the binding is performed by name and the bind variable is duplicated, then this column gives the position of the primary bind variable.
DATATYPE NUMBER Internal identifier for the bind datatype
DATATYPE_STRING VARCHAR2(15) Textual representation of the bind datatype
CHARACTER_SID NUMBER National character set identifier
PRECISION NUMBER Precision (for numeric binds)
SCALE NUMBER Scale (for numeric binds)
MAX_LENGTH NUMBER Maximum bind length
WAS_CAPTURED VARCHAR2(3) Indicates whether the bind value was captured (YES) or not (NO)
LAST_CAPTURED DATE Date when the bind value was captured. Bind values are captured when SQL statements are executed. To limit the overhead, binds are captured at most every 15 minutes for a given cursor.
VALUE_STRING VARCHAR2(4000) Value of the bind represented as a string
VALUE_ANYDATA ANYDATA Value of the bind represented using the self-descriptive Sys.AnyData datatype. This representation is useful to programmatically decode the value of the bind variable.