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Snippet Name: LAST_VALUE

Description: Returns the last value in an ordered set of values. If the last value in the set is null, then the function returns NULL unless you specify IGNORE NULLS. This setting is useful for data densification. If you specify IGNORE NULLS, then LAST_VALUE returns the first non-null value in the set, or NULL if all values are null.

Also see:
» RANK
» REGR_SLOPE
» VARIANCE
» VAR_SAMP
» VAR_POP
» SUM
» STDDEV_SAMP
» STDDEV_POP
» STDDEV
» ROW_NUMBER
» REGR_SYY
» REGR_SXY
» REGR_SXX
» REGR_R2
» REGR_INTERCEPT
» REGR_COUNT
» REGR_AVGY
» REGR_AVGX
» Number Functions: RATIO_TO_REPORT
» Number Functions: RANK
» PERCENTILE_DISC
» PERCENTILE_CONT
» PERCENT_RANK
» OVER PARTITION BY
» NTILE
» MIN
» MAX
» LEAD
» LAST
» LAG

Comment: (none)

Language: PL/SQL
Highlight Mode: PLSQL
Last Modified: March 06th, 2009

LAST_VALUE (<expression> IGNORE NULLS) OVER (<analytic clause>)
 
conn oe/oe
 
SELECT last_name, salary, hire_date, FIRST_VALUE(hire_date)
OVER (ORDER BY salary ROWS BETWEEN UNBOUNDED PRECEDING AND UNBOUNDED FOLLOWING) AS lv
FROM (SELECT * FROM employees WHERE department_id = 90
ORDER BY hire_date);


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