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!
DECLARE:
This keyword signals the beginning of the declarative section of the PL/SQL block, that contains local declarations. The Items declared locally exist only within the present block and all its sub-blocks and are not noticeable to enclosing blocks. The declarative section of the PL/SQL block is optional. It is terminated implicitly by using the keyword BEGIN that introduces the executable section of the block.
The PL/SQL does not allow the forward references. Therefore, you should declare an item before referencing it in other statements, including the other declarative statements. You should also declare the subprograms at the end of a declarative part after all other program items.
collection_declaration:
These identify an index-by table, nested table, or varray previously declared within the present scope.
constant_declaration:
A constant can be declared by using this construct.
cursor_declaration:
These constructs declares an explicit cursor
cursor_variable_declaration
These construct declares the cursor variable.
exception_declaration
These construct declares an exception.
object_declaration
These identify an object (or instance of an object type) formerly declared within the present scope.
Package Specification The package specifications contain the public declarations. The scopes of these declarations are local to your database representation and global to the
Using SET TRANSACTION You use the SET TRANSACTION statement to begin the read-only or read-write transaction, start an isolation level, or assign your present transaction to a
Many of the reports generated from the system calculate the total dollars in purchases for a shopper. Complete the following steps to create a function named TOT_PURCH_SF that acce
Left and Right Joins LEFT OUTER JOIN can be used when you want to retrieve the data from the main table (table1) even if there is no match in other tables (table_2, table_3...
Keys in SQL SQL support for keys in the following respects: SQL does not require at least one key for every base table. If no key is explicitly declared, then KEY {ALL B
Project Description: I have two types of data sources. One that is a list in SharePoint and another that is an access desktop database. The access desktop database is fairly com
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
Packaging Cursors You can split a cursor specification from its body for placement in a package. In that way, you can change the cursor body without changing the cursor spec
ROWID The ROWID returns the rowid (binary address) of a row in the database table. You can use the variables of the type UROWID to store rowids in a readable format. In the il
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
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd