Oracle® Objects for OLE Developer's Guide 11g Release 2 (11.2) for Microsoft Windows Part Number E17727-03 |
|
|
PDF · Mobi · ePub |
Executes the SQL statement and creates an OraSQLStmt
object from the specified SQL statement and options.
Set orasqlstmt = oradatabase.CreateSQL(sql_statement, options)
The arguments for the method are:
Arguments | Description |
---|---|
sql_statement |
Any valid Oracle SQL statement. |
options |
A bit flag indicating the status of any optional states of the OraSQLStmt object. You can combine one or more options by adding their respective values. |
The options flag values are:
Constant | Value | Description |
---|---|---|
ORASQL_NO_AUTOBIND |
&H1& |
Do not perform automatic binding of database parameters. |
ORASQL_FAILEXEC |
&H2& |
Raise error and do not create SQL statement object. |
ORASQL_NONBLK |
&H4& |
Execute SQL in a nonblocking state. |
These values can be found in the oraconst.txt
file.
The SQL statement can be one continuous line with no breaks. If it is necessary to break the line, be sure to use line feeds (ASCII 10). Do not use carriage returns (ASCII 13), because the underlying Oracle Database functions treat carriage returns as null terminators.
You can use PL/SQL bind variables in conjunction with the OraParameters
collection.
Executing the SQL statement generates a commit to the database by default. To avoid this, use the BeginTrans
method on the session object before using the CreateSQL
method.
When executing PL/SQL blocks or calling stored procedures, you must include a BEGIN
and END
statement around your call as if you were executing an anonymous PL/SQL block. This is equivalent to the EXECUTE
command of SQL*Plus and SQL*DBA.
If the ORASQL_FAILEXEC
option is used, an error is raised during SQLstmt
object creation failure (on SQLstmt
object refresh). The SQLstmt
object is not created and cannot be refreshed.
Note:
Use theCreateSQL
method with care, because any SQL statement or PL/SQL block that is executed might cause errors afterward when you use the Edit
method on open dynasets.String
This example demonstrates the use of parameters, the CreateSQL
method, the Refresh
method, and the SQL property for OraSQLStmt
object. Copy and paste this code into the definition section of a form. Then, press F5.
Sub Form_Load () 'Declare variables Dim OraSession As OraSession Dim OraDatabase As OraDatabase Dim OraSqlStmt As OraSQLStmt 'Create the OraSession Object. Set OraSession = CreateObject("OracleInProcServer.XOraSession") 'Create the OraDatabase Object by opening a connection to Oracle. Set OraDatabase = OraSession.OpenDatabase("ExampleDb", "scott/tiger", 0&) OraDatabase.Parameters.Add "EMPNO", 7369, 1 OraDatabase.Parameters("EMPNO").ServerType = 2 'ORATYPE_NUMBER OraDatabase.Parameters.Add "ENAME", 0, 2 OraDatabase.Parameters("ENAME").ServerType = 1 'ORATYPE_VARCHAR2 Set OraSqlStmt = OraDatabase.CreateSQL("Begin Employee.GetEmpName" & _ "(:EMPNO, :ENAME); end;", 0&) 'Notice that the SQL statement is NOT modified. MsgBox OraSqlStmt.SQL 'Should display SMITH MsgBox OraDatabase.Parameters("ENAME").Value 'Change the value of the empno parameter. OraDatabase.Parameters("EMPNO").Value = 7499 'Refresh the sqlstmt OraSqlStmt.Refresh 'Should display ALLEN MsgBox OraDatabase.Parameters("ENAME").Value 'Notice that the SQL statement is NOT modified. MsgBox OraSqlStmt.SQL 'Remove the parameter. OraDatabase.Parameters.Remove ("job") End Sub
See Also:
"Asynchronous Processing" for more information about the ORASQL_NONBLK
option