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Perform the following queries on the Hospital1.DB using SQL Anywhere (START EARLY!).a. Which patients have purchased the drug "Tylenol"? List the names and addresses. Arrange them in descending order of patient name.b. List the physician names and the number of visits supervised by each physician. Arrange them in descending order of number of visits.c. List the Phy# and names of all physicians whose name starts with the letter "M."d. List the names, addresses and phone#s of patients living in Fremont or San Jose. Arrange them in ascending order of the zip.e. List the Drug# and description of drugs that have not been prescribed. Arrange them in ascending order of description.f. How many patients are there in the database? Give the count.g. List Visit#, PatID, Phy#, Drug#, Qnty and Amount. Calculate Amount as Price*Qnty.
Interesting properties of CROSS JOIN - SQL Compare these with the "interesting properties of JOIN", CROSS JOIN is associative but not commutative. Unlike JOIN and NATURAL JOI
Some Varray Examples In SQL Plus, assume that you define an object type Project, as described below: SQL> CREATE TYPE Project AS OBJECT ( 2 project_no NUMBER(2), 3 title VARCHA
How Exceptions Propagate ? Whenever an exception is raised, and if the PL/SQL cannot find a handler for it in the present subprogram or block, the exception propagates. That is
Example of UNWRAP Operator - SQL Example here shows how unwrapping can be done in longhand in SQL. Example: Unwrapping in SQL Letting CONTACT_INFO_WRAPPED denote the res
First Step at defining type SID in SQL CREATE TYPE SID AS ( C VARCHAR(5) ) ; Explanation: TYPE SID announces that a type named SID is being defined to the syst
CHECK Constraints in SQL A CHECK constraint is a table constraint defined using the key word CHECK, as already illustrated in several examples in this chapter. In particular,
Cursor Attributes The Cursors and cursor variables have 4 attributes which give you helpful information about the execution of a data manipulation statement. Syntax:
Example of Check Constraints Example: Workaround for when subqueries not permitted in CHECK constraints CREATE FUNCTION NO_MORE_THAN_20000_ENROLMENTS ( ) RETURNS BOOLEAN
Positional Notation The first procedure call uses the positional notation. The PL/SQL compiler relates the first actual parameter, account, with the first proper parameter, ac
How Exceptions Are Raised By the run-time system, the internal exceptions are raised implicitly as are user-defined exceptions that you have related with an Oracle error number
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