Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Predefined Exceptions
The internal exception is raised implicitly whenever your PL/SQL program exceeds a system-dependent limit or violates an Oracle rule. Each & every Oracle error has a number, but exceptions should be handled by the name. Therefore the, PL/SQL predefines some general Oracle errors as exceptions. For illustration, the PL/SQL raises the predefined exception NO_DATA_FOUND when a SELECT INTO statement returns no rows.
You can use the OTHERS handler, to handle the other Oracle errors. The SQLCODE & SQLERRM functions are primarily very helpful in the OTHERS handler since they return the message text & the Oracle error code. Otherwise, you can use the pragma EXCEPTION_INIT to relate an exception names with the Oracle error codes.
The PL/SQL declares predefined exceptions globally in the package STANDARD that defines the PL/SQL atmosphere. Therefore, you need not declare them yourself. You can write the handlers for predefined exceptions using the names shown in the list below. The corresponding Oracle error codes and SQLCODE return values are also shown.
A short description of the predefined exceptions is as shown below:
Example of COALESCE operator Example: Give the total of marks for each exam (simplified solution) SELECT CourseId, COALESCE ((SELECT SUM (Mark) FROM EXAM_MARK AS EM
I want to implement heap sort algorithm in pl sql please share the source code for guidance
Transactions in SQL BEGIN TRANSACTION, COMMIT, and ROLLBACK, SQL has the same syntax except for START in place of BEGIN. However, START TRANSACTION is used only for outermost
Using DEFAULT You can use the keyword DEFAULT rather than that of the assignment operator to initialize the variables. For e.g. the declaration blood_type CHAR := ’O’; it can b
Difference between 9i & 10G When Oracle releases any new databases then it are having some discrepancy with them. But 10G is having much difference than oracle 9i has. Oracle
Second Step at defining type SID in SQL CREATE TYPE SID AS VARCHAR(5) ; Explanation: TYPE SID announces that a type named SID is being defined to the system.
BETWEEN Operator The operator BETWEEN, tests whether the value lies in a specified series. That means "greater than or equivalent to low value and less than or equivalent to hig
The requirements as follows: Create a folder called "SECURITY" on the server and upload all your project files to that folder. Please note, the "SECURITY" folder is NOT to be IN
Dynamic Ranges The PL/SQL lets you determine the loop range dynamically at run time, as the example below shows: SELECT COUNT(empno) INTO emp_count FROM emp; FOR i IN 1..emp_cou
Keyword and Parameter Description: table_reference: This specifies a table or view that should be accessible when you execute the DELETE statement, and for that you must
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd