What causes the invalid cursor exception?
Cause: Either a host language program call specified an invalid cursor or the value of the MAXOPENCURSORS option in the precompiler command were too small. All cursors must be opened using the OOPEN call before being referenced in any of the following calls: SQL, DESCRIBE, NAME, DEFINE, BIND, EXEC, FETCH, and CLOSE.
What Happens After an exception handler runs?
After an exception handler runs, the current block stops executing and the enclosing block resumes with the next statement. If there is no enclosing block, control returns to the host environment.
What is Pragma Autonomous_transaction?
AUTONOMOUS_TRANSACTION Pragma. The AUTONOMOUS_TRANSACTION pragma changes the way a subprogram works within a transaction. A subprogram marked with this pragma can do SQL operations and commit or roll back those operations, without committing or rolling back the data in the main transaction.
What is Pragma EXCEPTION_INIT in Oracle?
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.
What is the difference between Pragma EXCEPTION_INIT and Raise_application_error?
EXCEPTION_INIT is helps to assign a error number to the exception and which can be raised using RAISE and can be handled in EXCEPTION block. RAISE_APPLICATION_ERROR is used to return a valid error message to the calling application like Java, .
What is bulk collection in Oracle PL SQL?
BULK COLLECT: These are SELECT statements that retrieve multiple rows with a single fetch, thereby improving the speed of data retrieval. FORALL: These are INSERT, UPDATE, and DELETE operations that use collections to change multiple rows of data very quickly.
What are triggers in Oracle?
A trigger is either a stored PL/SQL block or a PL/SQL, C, or Java procedure associated with a table, view, schema, or the database itself. Oracle Database automatically executes a trigger when a specified event takes place, which may be in the form of a system event or a DML statement being issued against the table.
What are pragmas in Oracle?
The PRAGMA keyword is used to signify that the remainder of the PL/SQL statement is a pragma, or directive, to the compiler. Also called apseudoinstruction, a pragma simply passes information to the compiler rather than getting transformed into a particular execution.
What is Sqlstate?
SQLSTATE is a code which identifies SQL error conditions. It composed by five characters, which can be numbers or uppercase ASCII letters. An SQLSTATE value consists of a class (first two characters) and a subclass (last three characters).
What SQLCODE means?
SQLCODE is an integer variable in which the DBMS returns the status of the last SQL statement executed. For details about the requirements for declaring the SQLCODE variable in embedded programs, see the Embedded SQL Companion Guide.
What is the difference between RAISE_APPLICATION_ERROR and pragma EXCEPTION_INIT?
Why bulk collect is used?
What is error ora-01001?
ORA-01001 invalid cursor Cause: Either a host language program call specified an invalid cursor or the value of the MAXOPENCURSORS option in the precompiler command were too small. All cursors must be opened using the OOPEN call before being referenced in any of the following calls: SQL, DESCRIBE, NAME, DEFINE, BIND, EXEC, FETCH, and CLOSE.
What is ora-01001 invalid cursor?
What is error code ora-06504?
I get ORA-06504: PL/SQL: Return types of Result Set variables or query do not match. The workaround in the bug report cures both the fetch and close problem. Show activity on this post.