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• The Oracle database software will transform recorded/stored data and statistics into useful pieces of information.. • Data: Each student’s test score is one
database or retrieve email learn SQL, an application has all of the SQL (and other coding languages) pre-programmed into it.. • With a few mouse clicks, users have access to all
• Evaluate logical comparisons to restrict the rows returned.. based on two or
• Compare and contrast the DECODE and CASE functions • Construct and execute a SQL query that correctly uses the.. DECODE and
the query returned all of the job_id values from the employees table, including the duplicate values..
AS (SELECT …) statement that is used to create the copy of the table, copies both the rows and the not null constraints, but does not copy the primary key – foreign key
similar in structure to the normal Oracle database tables, but the actual data rows are stored externally in a flat file and are accessed only when needed... Copyright © 2015,
When User A issues an insert, update, or delete operation to the database, the Oracle server takes a snapshot (copy) of the data before it is changed and writes it to an
