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1- You can check attribute names from each table in DBF11 by running for example: desc dbf11.Member; desc dbf11.Agent; desc dbf11.Producer;Because some attribute names in the tables might be slightly different from those in the assignment blue sheet, please make sure to verify the attribute names first before querying the tables. This way, you check the real data set first before validating your queries.
2- For question 1d:Display the month(s) in which the number of entries for the awards is higher than the monthly average of entries for the current year.The 'number of entries' refers to the FILM entity, and the montly average comes from the 'entry_date'. This question is referring to the number of films that have been entered into the award system.3- INSTRUCTIONS for TASK 3 FILES- You need to run (or cut and paste) 'task3-build.sql' on your own oracle account to create the required tables for question 3- You then need to populate the tables with data by running (or cutting and pasting) 'task3-populate-before-trigger.sql'- You can then implement the trigger questions for the assignment.- You need to submit your spool for trigger questions by showing the results of executing (or cutting and pasting) 'task3-populate-after-trigger.sql'.
Order of Evaluation When you do not use the parentheses to specify the order of evaluation, the operator precedence determine the order. Now compare the expressions below: NOT
Using LIMIT For nested tables, that have no maximum size, the LIMIT returns NULL. For varrays, the LIMIT returns the maximum number of elements that a varray can have (that yo
Tautologies: Above given table allows us to read the truth of the connectives in the next manner. Just expect we are looking at row three. It means this says that, if there P
What Are Subprograms? The Subprograms are named PL/SQL blocks which can take parameters and be invoked. The PL/SQL has 2 types of subprograms known as the procedure s and func
Scope Rules You cannot declare an exception twice in the similar block. Though, you can, declare the similar exception in 2 different blocks. The Exceptions declared in a bloc
Defining Autonomous Transactions To define an autonomous transaction, you use the pragma (compiler directive) AUTONOMOUS_TRANSACTION. The pragma instructs the PL/SQL compiler
LEVEL You use the LEVEL with the SELECT CONNECT BY statement to categorize rows from a database table into a tree structure. The LEVEL returns the level number of a node in a
Fetching with a Cursor The FETCH statements retrieve the rows in the result set one at a time. After each and every fetch, the cursor advance to the next row in the result set
Example of Null operator - NiNo Rule If we wanted to make HIGHER_OF adhere to "NULL in, NULL out"-let's call it the NiNo rule-we would have to write something like what is sho
GOTO Statement The GOTO statement branches to a label unconditionally. The label must be exclusive within its scope and should precede an executable statement or a PL/SQL block.
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