Staffsite STMIK PPKIA Pradnya Paramita DP_9_1
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• The request is then sent to the Oracle Server (a database running on a computer), the request is processed and the data returned is displayed. SQL statement
• Use the correct syntax to select specific columns in a table, modify the way data is displayed, and perform calculations using arithmetic expressions and
• Evaluate logical comparisons to restrict the rows returned.. based on two or
the query returned all of the job_id values from the employees table, including the duplicate values..
values from inner query to qualify or disqualify candidate row..
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
• The example below shows a default value being specified for the hire_date column at the time the table is created:.. • When rows are added to this table, SYSDATE will be assigned
foreign key enables the dependent rows in the child table to be deleted when a row in the parent table is deleted. • If the foreign key does not have an ON
