Quick Answer: What Is Pragma Autonomous_transaction?

What is the Pragma Exception_init used for?

The pragma EXCEPTION_INIT associates an exception name with an Oracle error number.

You can intercept any ORA- error and write a specific handler for it instead of using the OTHERS handler..

Can we commit in trigger?

Trigger should not commit and cannot commit. Committing in a trigger usually raises an exception unless it happens into autonomous transaction. When you open connection, Oracle creates session for it.

What is Pragma Serially_reusable and why is it used?

The pragma SERIALLY_REUSABLE indicates that the package state is needed only for the duration of one call to the server (for example, a PL/SQL anonymous block, an OCI call to the database or a stored procedure call through a database link).

What does autonomous mean?

self-governing; independent; subject to its own laws only. pertaining to an autonomy, or a self-governing community.

What is Pragma in SQL?

The PRAGMA statement is an SQL extension specific to SQLite and used to modify the operation of the SQLite library or to query the SQLite library for internal (non-table) data. The pragma command is specific to SQLite and is not compatible with any other SQL database engine. …

What is bulk collect in Oracle?

A bulk collect is a method of fetching data where the PL/SQL engine tells the SQL engine to collect many rows at once and place them in a collection. The SQL engine retrieves all the rows and loads them into the collection and switches back to the PL/SQL engine.

What is the advantage of Pragma autonomous transaction?

For readability, code the pragma at the top of the section. Once started, an autonomous transaction is fully independent. It shares no locks, resources, or commit-dependencies with the main transaction. You can log events, increment retry counters, and so on, even if the main transaction rolls back.

What are autonomous items?

Autonomous Items: Autonomous items refer to those international economic transactions, which take place due to some economic motive such as profit maximization. These items are also known as ‘above the line items’. Autonomous transactions are independent of the state of BOP account.

Can we use Pragma Autonomous_transaction in trigger?

The trigger has pragma autonomous_transaction, and trigger works as intended. …

What is Pragma Exception_init How does it work?

A pragma is a compiler directive that is processed at compile time, not at run time. In PL/SQL, the pragma EXCEPTION_INIT tells the compiler to associate an exception name with an Oracle error number. That lets you refer to any internal exception by name and to write a specific handler for it.

What is pragma inline in Oracle?

The INLINE pragma specifies that a subprogram invocation is, or is not, to be inlined. Inlining replaces a subprogram invocation (to a subprogram in the same program unit) with a copy of the invoked subprogram.

What is an autonomous transaction?

Autonomous Transactions. Autonomous transactions allow you to create a new transaction within a transaction that may commit. or roll back changes, independently of its parent transaction.

What is the difference between Pragma Exception_init and Raise_application_error?

pragma exception init turns an Oracle Error into a named exception. If a database operation raises an ORA-00054 “resource busy”, you would have to code: …. … Raise_application_error is used to RAISE an error – exception_init is used to deal with errors (i guess you could say they are opposites in a way).

What is Pragma Restrict_references in Oracle?

The RESTRICT_REFERENCES pragma asserts that a user-defined subprogram does not read or write database tables or package variables. The RESTRICT_REFERENCES pragma is deprecated. … Oracle recommends using DETERMINISTIC and PARALLEL_ENABLE instead of RESTRICT_REFERENCES .