Table literals - sql, PL-SQL Programming

Assignment Help:

Table Literals - SQL

One might expect SQL to support table literals in the manner illustrated in Example 2.2, but in fact that is not a legal SQL expression.

Example: Not a Table Literal

TABLE (

ROW (StudentId 'S1', CourseId 'C1', Name 'Anne'),

ROW (StudentId 'S1', CourseId 'C2', Name 'Anne'),

ROW (StudentId 'S2', CourseId 'C1', Name 'Boris'),

ROW (StudentId 'S3', CourseId 'C3', Name 'Cindy'),

ROW (StudentId 'S4', CourseId 'C1', Name 'Devinder') 

);

It is illegal because row literals in SQL do not use column names. Instead, the column values must be written in the appropriate order, reflecting the order of the columns of the table, as in

ROW ('S1', 'C1', 'Anne')

Moreover, the word VALUES is used in place of TABLE, parentheses is not used around the list of row literals, and the key word ROW is in fact optional.


Related Discussions:- Table literals - sql

Develop a job management site, Lightweight system to provide and take info ...

Lightweight system to provide and take info from workers in the field and office, have basic design outlined already just require build and implementation Desired Skills CSS,

Library system, Hi,am developing a library system and relating all the tabl...

Hi,am developing a library system and relating all the table is somehow complex,could you kindly assist me

Anatomy of a command, Anatomy of a Command Figure, showing a simple S...

Anatomy of a Command Figure, showing a simple SQL command, is almost identical to its counterpart in the theory book. The only difference arises from the fact that SQL uses a

Difference between 9i & 10g, Difference between 9i & 10G When Oracle r...

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

Example of group by and collect operator, Example of GROUP BY and COLLECT O...

Example of GROUP BY and COLLECT Operator Example: Using GROUP BY and COLLECT to obtain C_ER2 SELECT CourseId, CAST ( COLLECT (ROW (StudentId, Mark)) AS ROW (Studen

Sql, Write a query to find academics that are authors and that have only ev...

Write a query to find academics that are authors and that have only ever coauthored papers with authors from institutes in the same state as their own. List their academic number,

Predefined exceptions, Predefined Exceptions The internal exception is ...

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

Example of wrap operator - sql, Example of WRAP Operator - SQL The eff...

Example of WRAP Operator - SQL The effect of Example can be obtained in SQL but note that one needs to write down not only the names of the columns being wrapped but also the

Rewrite rules - tautology, Equivalences & Rewrite Rules: If notice tha...

Equivalences & Rewrite Rules: If notice that as well as allowing us to prove trivial theorems, and tautologies enable us to establish that certain sentences are saying the sam

Assignment 4, I need a query for PL/SQL, selecting names with cursor, goes ...

I need a query for PL/SQL, selecting names with cursor, goes down the list, assigns usernames (initials001) based on initials in the name. If two names have same initials the user

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd