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

Relational algebra, Define basic operators of relational algebra with an ex...

Define basic operators of relational algebra with an example each

Updating by insertion, Updating by insertion Syntax : INSERT IN...

Updating by insertion Syntax : INSERT INTO ENROLMENT VALUES (SID ('S4'), 'Devinder', CID ('C1'));

Sql, If two relations R and S are joined, then the non matching tuples of b...

If two relations R and S are joined, then the non matching tuples of both R and S are ignored in __________________.

Create GUIs in PL/SQL, i NEED TO CREATE 3 guiS IN pl/sql sERVER PAGE FORM

i NEED TO CREATE 3 guiS IN pl/sql sERVER PAGE FORM

Functions in pl/sql, Functions   The function is a subprogram that cal...

Functions   The function is a subprogram that calculates a value. The Functions and procedures are structured similar, except that the functions have a RETURN clause. You can

Relational shema.., Find the account numbers of all customers whose balance...

Find the account numbers of all customers whose balance is more than 10,000 $

Assignment of DBMS in SQL server, i have an assignment of DBMS subject, thi...

i have an assignment of DBMS subject, this assignment is based on SQL server and power BI

Create Tables, Hi there, I have the final part of a submission to do, it ...

Hi there, I have the final part of a submission to do, it is a demonstration that takes place tomorrow. I do not have to use previous information, but i have resources that sho

Use of table comparisons - sql, Use of Table Comparisons - SQL Table ...

Use of Table Comparisons - SQL Table comparisons where it is noted that although table expressions cannot be compared, we have TABLE (t) to convert a table expression t into

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

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