Contents
- 1 How do you handle exceptions in bulk collect?
- 2 Why do we use save exceptions clause during bulk binding?
- 3 What is the difference between bulk collect and forall?
- 4 Is a cursor attribute that returns true if the last fetch returned a row and false if not?
- 5 How can I bulk collect exceptions in Oracle?
- 6 How to have a bulk bind complete despite errors?
How do you handle exceptions in bulk collect?
In order to bulk collect exceptions, we have to use FORALL clause with SAVE EXCEPTIONS keyword. Connect to SQL*Plus with proper credentials and run following query to create the table and populate it with some data. Run following PL/SQL block to populate the table and later on update it to see the exception behaviour.
What are bulk collect exceptions?
When using BULK COLLECT it’s possible to see all of the exceptions thrown for the bulk collection by coding the exception handler properly. Read on to see how to implement such an exception handler. There are 18 rows in this slightly modified data set so 18 exceptions were generated.
Why do we use save exceptions clause during bulk binding?
Description Add the SAVE EXCEPTIONS clause to your FORALL statement when you want the PL/SQL runtime engine to execute all DML statements generated by the FORALL, even if one or more than fail with an error. If you use INDICES OF, you will need to take some care to find your way back to the offending statement.
What can be present in the body of forall?
NOT NULL Constraint.
What is the difference between bulk collect and forall?
Bulk collect: is a CLAUSE. is used to fetch the records from the cursor. Forall: is a STATEMENT. is used to do dml operation of fetched records. The body of the FORALL statement is a single DML statement — an INSERT, UPDATE, or DELETE. INTO, FETCH INTO, and RETURNING INTO clauses.
How Bulk collect improves performance?
Since the BULK COLLECT fetches the record in BULK, the INTO clause should always contain a collection type variable. The main advantage of using BULK COLLECT is it increases the performance by reducing the interaction between database and PL/SQL engine.
Is a cursor attribute that returns true if the last fetch returned a row and false if not?
Every explicit cursor and cursor variable has four attributes: %FOUND , %ISOPEN %NOTFOUND , and %ROWCOUNT . Before the first fetch from an open cursor, cursor_name%FOUND returns NULL . Afterward, it returns TRUE if the last fetch returned a row, or FALSE if the last fetch failed to return a row.
How to report individual exceptions in bulk record updates?
To Begin with what you’re looking for is a partial insert instead of all or nothing and be able to report back on individual record level errors or exceptions. Database.insert (recordsToInsert, allOrNone): Adds one or more sObjects, such as individual accounts or contacts, to your organization’s data.
How can I bulk collect exceptions in Oracle?
• %BULK_EXCEPTIONS (i).ERROR_CODE holds the corresponding Oracle error code. • %BULK_EXCEPTIONS (i).ERROR_INDEX holds the iteration number of the FORALL statement. • %BULK_EXCEPTIONS.COUNT holds total number of exceptions encountered. In order to bulk collect exceptions, we have to use FORALL clause with SAVE EXCEPTIONS keyword.
How to save exception information in bulk operations?
Bulk Operations that Complete Since Oracle 9i the FORALL statement includes an optional SAVE EXCEPTIONS clause that allows bulk operations to save exception information and continue processing. Once the operation is complete, the exception information can be retrieved using the SQL%BULK_EXCEPTIONS attribute.
How to have a bulk bind complete despite errors?
To have a bulk bind complete despite errors, add the keywords SAVE EXCEPTIONS to your FORALL statement after the bounds, before the DML statement. You should also provide an exception handler to track the exceptions that occurred during the bulk operation.