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The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in most aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can ...
APEX applications are subject to the same level of application security risks as other web-based applications built on more direct technologies such as PHP, ASP.NET and Java. However, since APEX 4.0, the Application Builder interface has included a utility called Advisor, which provides a basic assessment of an application’s security posture.
LISP 1.5 (1958-1961) [5] allowed exceptions to be raised by the ERROR pseudo-function, similarly to errors raised by the interpreter or compiler. Exceptions were caught by the ERRORSET keyword, which returned NIL in case of an error, instead of terminating the program or entering the debugger. [ 6 ]
Common exceptions include an invalid argument (e.g. value is outside of the domain of a function), [5] an unavailable resource (like a missing file, [6] a network drive error, [7] or out-of-memory errors [8]), or that the routine has detected a normal condition that requires special handling, e.g., attention, end of file. [9]
SEH on 64-bit Windows does not involve a runtime exception handler list; instead, it uses a stack unwinding table (UNWIND_INFO) interpreted by the system when an exception occurs. [ 4 ] [ 5 ] This means that the compiler does not have to generate extra code to manually perform stack unwinding and to call exception handlers appropriately.
If an exception is raised in a TRANSACTION COMMIT trigger, the changes made by the trigger so far are rolled back and the client application is notified, but the transaction remains active as if COMMIT had never been requested; the client application can continue to make changes and re-request COMMIT. Syntax for database triggers:
Bird flu was detected in a commercial poultry flock in Georgia for the first time since the current outbreak started in 2022, officials announced on Friday.. The positive case of the H5N1 strain ...
PL/SQL Developer, an Integrated Development Environment for developing software in the Oracle database environment, [2] focuses on the development of PL/SQL stored-program units. Allround Automations, based in Enschede in the Netherlands , markets the software.