sp_prepexec (Transact-SQL)
Prepares and executes a parameterized Transact-SQL statement. sp_prepexec combines the functions of sp_prepare and sp_execute. This is invoked by ID =13 in a tabular data stream (TDS) packet.
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Transact-SQL Syntax Conventions
Syntax
sp_prepexec handle OUTPUT, params , stmt
[ , bound param ] [ ,...n ] ]
Arguments
handle
Is the SQL Server-generated handle identifier. handle is a required parameter with an int return value.params
Identifies parameterized statements. The params definition of variables is substituted for parameter markers in the statement. params is a required parameter that calls for an ntext, nchar, or nvarchar input value. Input a NULL value if the statement is not parameterized.stmt
Defines the cursor result set. The stmt parameter is required and calls for an ntext, nchar or nvarchar input value.bound_param
Signifies the optional use of additional parameters. bound_param calls for an input value of any data type to designate the additional parameters in use.
Examples
The following example prepares and executes a simple statement.
Declare @P1 int;
EXEC sp_prepexec @P1 output,
N'@P1 nvarchar(128), @P2 nvarchar(100)',
N'SELECT database_id, name
FROM sys.databases
WHERE name=@P1 AND state_desc = @P2',
@P1 = 'tempdb', @P2 = 'ONLINE';
EXEC sp_unprepare @P1;