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sp_cursorexecute (Transact-SQL)

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Applies to: SQL Server

Creates and populates a cursor based upon the execution plan created by sp_cursorprepare. This procedure, coupled with sp_cursorprepare, has the same function as sp_cursoropen, but is split into two phases. sp_cursorexecute is invoked by specifying ID = 4 in a tabular data stream (TDS) packet.

Transact-SQL syntax conventions

Syntax

sp_cursorexecute prepared_handle , cursor
    [ , scrollopt [ OUTPUT ]
    [ , ccopt [ OUTPUT ]
    [ , rowcount OUTPUT [ , bound param ] [ , ...n ] ] ] ]
[ ; ]

Arguments

prepared_handle

The prepared statement handle value returned by sp_cursorprepare. The prepared_handle parameter is int, and can't be NULL.

cursor

The Database Engine-generated cursor identifier. cursor is a required parameter that must be supplied on all subsequent procedures that act upon the cursor, such as sp_cursorfetch.

scrollopt

Scroll option. The scrollopt parameter is int, with a default of NULL. The sp_cursorexecute scrollopt parameter has the same value options as sp_cursoropen.

The PARAMETERIZED_STMT value isn't supported.

If a scrollopt value isn't specified, the default value is KEYSET regardless of scrollopt value specified in sp_cursorprepare.

ccopt

Currency control option. ccopt is an optional parameter that requires an int input value. The sp_cursorexecuteccopt parameter has the same value options as sp_cursoropen.

If a ccopt value isn't specified, the default value is OPTIMISTIC regardless of ccopt value specified in sp_cursorprepare.

rowcount

An optional parameter that signifies the number of fetch buffer rows to use with AUTO_FETCH. The default is 20 rows. rowcount behaves differently when assigned as an input value versus a return value.

As input value As return value
When AUTO_FETCH is specified with FAST_FORWARD cursors, rowcount represents the number of rows to place into the fetch buffer. Represents the number of rows in the result set. When the scrollopt AUTO_FETCH value is specified, rowcount returns the number of rows that were fetched into the fetch buffer.

bound_param

Signifies the optional use of extra parameters.

Any parameters after the fifth are passed along to the statement plan as input parameters.

Return code values

rowcount returns the following values.

Value Description
-1 Number of rows unknown.
-n An asynchronous population is in effect.

Remarks

scrollopt and ccopt Parameters

scrollopt and ccopt are useful when the cached plans are preempted for the server cache, meaning that the prepared handle identifying the statement must be recompiled. The scrollopt and ccopt parameter values must match the values sent in the original request to sp_cursorprepare.

PARAMETERIZED_STMT shouldn't be assigned to scrollopt.

Failure to provide matching values results in recompilation of the plans, negating the prepare and execute operations.

RPC and TDS considerations

The RPC RETURN_METADATA input flag can be set to 1 to request that cursor select list metadata is returned in the TDS stream.

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