Data Conversion

Oracle 12c
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Frequently when retrieving data stored in an Oracle database it needs to be converted, manipulated, or aggregated. Learn about the Oracle conversion functions and conditional expressions.

WHAT YOU WILL LEARN

  • describe the use of implicit and explicit data conversion within SQL statements
    use the TO_CHAR function to convert a date to a character data type in a SQL statement
    describe elements of the Date Format Model in  SQL
    use the TO_CHAR Function to convert a number to a character datatype in a SQL statement
    Use the TO_NUMBER and TO_DATE function to convert a character data type to a number or date format in a SQL statement
    use the TO_CHAR and TO_DATE functions with the RR date format to return data for a previous century in a SQL statement
    describe general functions when working with data and pertaining to NULL values
  • use the NVL and NVL2 function when working with NULL values in a SQL statement
    use the NULLIF and COALESCE functions when working with NULL values in a SQL statement
    use conditional expressions to provide the use of the IF-THEN-ELSE logic in a SQL statement
    use the CASE expression to facilitate a conditional inquiry in a SQL statement
    use the DECODE function to facilitate conditional inquiry in a SQL statement
    write SQL statements using the TO_CHAR, TO_DATE, DECODE functions and the CASE Expression

IN THIS COURSE

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