CREATE statement
Creates a record in a table, sets all the fields in the record to their default initial values, and moves a copy of the record to the record buffer.
Data movement
Syntax
record
The name of the record or record buffer you are creating.To create a record in a table defined for multiple databases, you might have to qualify the record’s table name with the database name. See the Record phrase reference entry for more information.USING { ROWID (nrow
) | RECID (nrec
) }NO-ERROR
Suppresses ABL errors or error messages that would otherwise occur and diverts them to the ERROR-STATUS system handle. If an error occurs, the action of the statement is not done and execution continues with the next statement. If the statement fails, any persistent side-effects of the statement are backed out. If the statement includes an expression that contains other executable elements, like methods, the work performed by these elements may or may not be done, depending on the order the AVM resolves the expression elements and the occurrence of the error.To check for errors after a statement that uses the NO-ERROR option:
- Check the ERROR-STATUS:ERROR attribute to see if the AVM raised the ERROR condition.
- Check if the ERROR-STATUS:NUM-MESSAGES attribute is greater than zero to see if the AVM generated error messages. ABL handle methods used in a block without a CATCH end block treat errors as warnings and do not raise ERROR, do not set the ERROR-STATUS:ERROR attribute, but do add messages to the ERROR-STATUS system handle. Therefore, this test is the better test for code using handle methods without CATCH end blocks. ABL handle methods used in a block with a CATCH end block raise ERROR and add messages to the error object generated by the AVM. In this case, the AVM does not update the ERROR-STATUS system handle.
- Use ERROR-STATUS:GET-MESSAGE(
message-num
) to retrieve a particular message, wheremessage-num
is 1 for the first message.If the statement does not include the NO-ERROR option, you can use a CATCH end block to handle errors raised by the statement.Some other important usage notes on the NO-ERROR option:
- NO-ERROR does not suppress errors that raise the STOP or QUIT condition.
- A CATCH statement, which introduces a CATCH end block, is analogous to a NO-ERROR option in that it also suppresses errors, but it does so for an entire block of code. It is different in that the error messages are contained in a class-based error object (generated by the AVM or explicitly thrown), as opposed to the ERROR-STATUS system handle. Also, if errors raised in the block are not handled by a compatible CATCH block, ON ERROR phrase, or UNDO statement, then the error is not suppressed, but handled with the default error processing for that block type.
- When a statement contains the NO-ERROR option and resides in a block with a CATCH end block, the NO-ERROR option takes precedence over the CATCH block. That is, an error raised on the statement with the NO-ERROR option will not be handled by a compatible CATCH end block. The error is redirected to the ERROR-STATUS system handle as normal.
- If an error object is thrown to a statement that includes the NO-ERROR option, then the information and messages in the error object will be used to set the ERROR-STATUS system handle. This interoperability feature is important for those integrating code that uses the traditional NO-ERROR technique with the newer, structured error handling that features error objects and CATCH end blocks.
ExampleThe following example creates a record in the order file for each pass through the loop and then updates the record. It also creates an order-line record.
This procedure adds
Orders
andOrderLines
to the database. Because the user supplies an order number when updating theorder
record, that order number is assigned (=) to theOrderNum
field of theOrderLine
record when theOrderLine
record is created.Notes
- When you run procedures that create large numbers of records (for example, during initial data loading), the process runs much faster if you use the No Crash Protection (-i) parameter. See OpenEdge Deployment: Startup Command and Parameter Reference for more information on startup parameters. Back up your database before you use this parameter.
- After you create a new record with CREATE, the AVM waits to write the record to the database until after the next statement generates an index entry for the record.
- The CREATE statement causes any related database CREATE triggers to execute. All CREATE triggers execute after the record is actually created. If a CREATE trigger fails (or executes a RETURN statement with the ERROR option), the record creation is undone.
See also
OpenEdge Release 10.2B
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