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SQL iSQLPlus & SQLPLUS
Statements

iSQLPlus Environment iSQLPlus is a application software layer that allows programmers to utilize SQL to make changes to the database
• Log in to iSQL*Plus.
• Describe the table structure.
• Edit your SQL statement.
• Execute SQL from SQL*Plus.
• Save SQL statements to files and append SQL statements to files.
• Execute saved files.
• Load commands from file to buffer to edit.
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SQL and iSQL*Plus Interaction
SQL Statements
Buffer
SQL Statements
Server
SQL*Plus
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SQL*Plus
Commands
Formatted Report
Query Results

SQL Statements Versus iSQL*Plus Commands
SQL
• A language
•
ANSI standard
• Keyword cannot be abbreviated
• Statements manipulate data and table definitions in the database iSQL*Plus
• An online environment
•
Oracle proprietary
• Keywords can be abbreviated
• Commands do not allow manipulation of values in the database
SQL statements
SQL buffer
SQL*Plus commands
SQL*Plus buffer
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Things you can do in iSQL*Plus
• Log in to SQL*Plus.
• Describe the table structure.
• Edit your SQL statement.
• Execute SQL from SQL*Plus.
• Save SQL statements to files and append SQL statements to files.
• Execute saved files.
• Load commands from file to buffer to edit.

Logging In to SQL*Plus
• From Windows environment (Using the client software):
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• From command line: sqlplus [username[/password
[@database]]]

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Logging In to iSQL*Plus
• From Browser: http://lovelace.cs.missouriwestern.edu:5560/isqlplus
/

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SQL Commands
Creating a table
Create Table Dept (
DEPT_NO NUMBER(2) Not Null,
DNAME
LOC
VARCHAR2(14),
VARCHAR2(13),
PRIMARY KEY (DEPT_NO));

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Displaying Table Structure
Use the SQL*Plus DESCRIBE command to display the structure of a table.
DESC[RIBE] tablename

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Displaying Table Structure
SQL> DESCRIBE dept
Name Null? Type
----------------- -------- ------------
DEPTNO NOT NULL NUMBER(2)
DNAME VARCHAR2(14)
LOC VARCHAR2(13)

Running a Script File from iSQLPlus
A.
Select ‘Load Scrip
1. make sure your script is a text file (.txt or .sql)
B. Browse to find your script, then select it
C. Hit Execute
D. Review results at the bottom of page
OR
Copy/Paste script into window, then
Execute
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1-12 iSQLPlus
Environment
Go to preferences to set environment
Go to History to see and access previously ran scripts

Set Display Commands
Set display Commands to
ON this will allow the command to display before the result. This is the required format for turning in homework.
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Summary
Use iSQL*Plus as an environment to:
• Execute SQL statements
• Edit SQL statements
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