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(FK) is a column, or combination of columns, in one table that contains values that match the primary key. value in another
– Columns: Each table gets a column for all attributes of the entity it is based on, with the original optionality. • Identifiers: The primary UID of the supertype level
• 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
• Apply the appropriate date and/or character format model to.. produce a
• Compare and contrast the DECODE and CASE functions • Construct and execute a SQL query that correctly uses the.. DECODE and
• VARIANCE: Used with columns that store numeric data to calculate the spread of data around the mean. • STDDEV: Similar to variance, standard deviation measures the spread
– For example, DATE data type columns always produce date values.. – You cannot insert the wrong type of data into
• Create and execute a function-based index • Create private and public synonyms... Copyright © 2015, Oracle and/or
