Can we use transaction in cursor?
Each cursor must be opened and closed within a single transaction. Moreover, the state of the transaction affects the state of the cursor. For example, a cursor is automatically closed in either of the following cases: Its transaction is closed by either a commit or rollback.
How do I start and end a transaction in Oracle?
How to Begin and End Transactions. You begin a transaction with the first executable SQL statement (other than CONNECT) in your program. When one transaction ends, the next executable SQL statement automatically begins another transaction. Thus, every executable statement is part of a transaction.
What is start transaction commit transaction?
START TRANSACTION or BEGIN start a new transaction. COMMIT commits the current transaction, making its changes permanent. ROLLBACK rolls back the current transaction, canceling its changes.
What occurs if a procedure or function terminates with failure without being handled?
What occurs if a procedure or function terminates with failure without being handled? 1. Any DML statements issued by the construct are still pending and can be committed or rolled back.
Which package can you use to output values and messages stored procedures?
Oracle provides a public package, DBMS_OUTPUT, which you can use to send messages from stored procedures, packages, and triggers. The PUT and PUT_LINE procedures in this package allow you to place information in a buffer that can be read by another trigger, procedure, or package.
What should the cursor do when there is an error?
The cursor should continue looping through the records even if an ERROR occurs in processing, but at the end of the batch, I would like to see the error messages of ALL records which produced errors. FOR SELECT….
Which is the BEGIN TRANSACTION statement in SQL Server?
Explicit transactions start with the BEGIN TRANSACTION statement and end with the COMMIT or ROLLBACK statement. To view Transact-SQL syntax for SQL Server 2014 and earlier, see Previous versions documentation.
When do transactions start in the transaction log?
Although BEGIN TRANSACTION starts a local transaction, it is not recorded in the transaction log until the application subsequently performs an action that must be recorded in the log, such as executing an INSERT, UPDATE, or DELETE statement.
What does the BEGIN TRANSACTION increment mean in SQL?
BEGIN TRANSACTION increments @@TRANCOUNT by 1. BEGIN TRANSACTION represents a point at which the data referenced by a connection is logically and physically consistent. If errors are encountered, all data modifications made after the BEGIN TRANSACTION can be rolled back to return the data to this known state of consistency.