# OLAP specification

On-Line Analytical Processing (OLAP) functions provide the ability to return ranking, row numbering and existing aggregate function information as a scalar value in a query result.

^{1}ARRAY_AGG, CUME_DIST, and PERCENT_RANK are not supported as an aggregate function in`aggregation-specification`(SQLSTATE 42887).

An OLAP function can be included in expressions in a select-list or the ORDER BY clause of a select-statement (SQLSTATE 42903). An OLAP function cannot be used within an argument to an XMLQUERY or XMLEXISTS expression (SQLSTATE 42903). An OLAP function cannot be used as an argument of an aggregate function (SQLSTATE 42607). The query result to which the OLAP function is applied is the result table of the innermost subselect that includes the OLAP function.

When specifying an OLAP function, a window is specified that defines the rows over which the function is applied, and in what order. When used with an aggregate function, the applicable rows can be further refined, relative to the current row, as either a range or a number of rows preceding and following the current row. For example, within a partition by month, an average can be calculated over the previous three month period.

**CUME_DIST**function is a distribution function that returns a cumulative distribution of a row within an OLAP window, expressed as a value between 0.0 - 1.0. The result is computed as follows:

- The number of rows preceding or peer with the current row in the OLAP window, divided by the number of rows in the OLAP window.

The data type of the result is DECFLOAT(34). The result cannot be NULL.

**PERCENT_RANK**function is a distribution function that returns a relative percentile rank of a row within an OLAP window, expressed as a value between 0.0 - 1.0. When the number of rows in the OLAP window is greater than 1, the result is computed as follows:

- The RANK of the current row in the OLAP window minus 1 divided by the number of rows in the OLAP window minus 1.

The data type of the result is DECFLOAT(34). The result cannot be NULL.

The ranking function computes the ordinal rank of a row within the window. Rows that are not distinct with respect to the ordering within their window are assigned the same rank. The results of ranking may be defined with or without gaps in the numbers resulting from duplicate values.

If **RANK** is specified, the rank of a row is defined as 1 plus the number of rows that
strictly precede the row. Thus, if two or more rows are not distinct with respect to the ordering,
then there will be one or more gaps in the sequential rank numbering.

If **DENSE_RANK (or DENSERANK)** is specified, the rank of a row is defined as 1 plus the
number of preceding rows that are distinct with respect to the ordering. Therefore, there will be no
gaps in the sequential rank numbering.

The **ROW_NUMBER (or ROWNUMBER)** function computes the sequential row number of the row
within the window defined by the ordering, starting with 1 for the first row. If the ORDER BY clause
is not specified in the window, the row numbers are assigned to the rows in arbitrary order, as
returned by the subselect (not according to any ORDER BY clause in the select-statement).

If the fetch-clause is used along with the ROW_NUMBER function, the row numbers might not be displayed in order. The fetch-clause is applied after the result set (including any ROW_NUMBER assignments) is generated; therefore, if the row number order is not the same as the order of the result set, some assigned numbers might be missing from the sequence.

The data type of the result of RANK, DENSE_RANK or ROW_NUMBER is BIGINT. The result cannot be null.

**NTILE**function returns the quantile rank of a row.

- num-tiles
- An expression that specifies the number of quantiles. The expression must return a value that is a built-in numeric data type, CHAR, or VARCHAR data type. In a Unicode database, the expression can also be a GRAPHIC or VARGRAPHIC data type. CHAR, VARCHAR, GRAPHIC, and VARGRAPHIC are supported by using implicit casting. If the expression is not a SMALLINT, INTEGER, or BIGINT, it is cast to BIGINT before the function is evaluated. The value must be greater than 0 (SQLSTATE 22014). The expression must be a constant, a variable, or a cast of a constant or variable (SQLSTATE 42601).

The data type of the result of NTILE is the same data type as the data type of num-tiles after any implicit casting. If the argument can be null, the result can be null. If the argument is null, the result is the null value.

The NTILE function computes the quantile rank of a row by dividing the ordered rows within the OLAP window into num-tiles quantiles and returns a value between 1 and MIN(n, num-tiles), where n is the number of rows within the OLAP window. If n is evenly divisible by num-tiles, the rows in the OLAP window are grouped into num-tiles quantiles, each containing (n / num-tiles) rows. Otherwise, each of the quantiles 1 through MOD(n, num-tiles) is assigned (n / num-tiles + 1) rows while each of the quantiles (MOD(n, num-tiles) + 1) through num-tiles is assigned (n / num-tiles) rows. The result is the quantile rank which is associated with the current row.

Equivalent sort keys are not considered when rows are divided into quantiles. Rows with equivalent sort keys can be assigned to different quantiles based on the non-deterministic order of these sort keys. Therefore, NTILE is a non-deterministic function.

The
**LAG** function returns the expression value for the row at `offset` rows
before the current row. The `offset` must be a positive
integer constant
(SQLSTATE 42815). An `offset` value of 0 means the current row. If a
window-partition-clause is specified, `offset` means `offset` rows
before the current row and within the current partition. If `offset` is not
specified, the value 1 is used. If `default-value`
(which can be an expression) is specified, it will be returned if the offset goes beyond
the scope of the current partition. Otherwise, the null value is returned. If 'IGNORE NULLS' is
specified, all rows where the expression value for the row is the null value are not considered in
the calculation. If 'IGNORE NULLS' is specified and all rows are null,
`default-value` (or the null value if `default-value` was not
specified) is returned.

The
**LEAD** function returns the expression value for the row at `offset` rows
after the current row. The `offset` must be a positive integer
constant
(SQLSTATE 42815). An `offset` value of 0 means the current row. If a
window-partition-clause is specified, `offset` means `offset` rows
after the current row and within the current partition. If `offset` is not
specified, the value 1 is used. If `default-value`
(which can be an expression) is specified, it will be returned if the offset goes beyond
the scope of the current partition. Otherwise, the null value is returned. If 'IGNORE NULLS' is
specified, all rows where the expression value for the row is the null value are not considered in
the calculation. If 'IGNORE NULLS' is specified and all rows are null,
`default-value` (or the null value if `default-value` was not
specified) is returned.

The **FIRST_VALUE** function returns the expression value for the first row in an OLAP window.
If 'IGNORE NULLS' is specified, all rows where the expression value for the row is the null value
are not considered in the calculation. If 'IGNORE NULLS' is specified and all values in the OLAP
window are null, FIRST_VALUE returns the null value.

The **LAST_VALUE** function returns the expression value for the last row in an OLAP window.
If 'IGNORE NULLS' is specified, all rows where the expression value for the row is the null value
are not considered in the calculation. If 'IGNORE NULLS' is specified and all values in the OLAP
window are null, LAST_VALUE returns the null value.

The data type of the result of FIRST_VALUE, LAG, LAST_VALUE, and LEAD is the data type of the expression. The result can be null.

- expression
- An expression that specifies the current row in an OLAP window. The expression must return a value that is a built-in data type.(SQLSTATE 42884).
- nth-row
- An expression that specifies which row of the OLAP window to return. The expression must return a value that is a built-in numeric data type, a CHAR, or a VARCHAR data type. In a Unicode database, the expression can also be a GRAPHIC or VARGRAPHIC data type. CHAR, VARCHAR, GRAPHIC, and VARGRAPHIC are supported using implicit casting. If the expression is not a SMALLINT, INTEGER, or BIGINT, it is cast to BIGINT before the function is evaluated. The value must be greater than 0 (SQLSTATE 22016). The expression must be a constant, a variable, or a cast of a constant or variable (SQLSTATE 428I9).
- FROM FIRST or FROM LAST
- Specifies how nth-row is applied. If FROM FIRST is specified, nth-row is treated as counting forward from the first row in the OLAP window. If FROM LAST is specified, nth-row is treated as counting backward from the last row in the OLAP window.
- RESPECT NULLS or IGNORE NULLS
- Specifies how NULL values in the OLAP window are handled. If RESPECT NULLS is specified, all
rows where the expression value for the row is the null value are considered in the calculation. If
IGNORE NULLS is specified, all rows where the expression value for the row is the null value are not
considered in the calculation.
The data type of the result of NTH_VALUE is the same as the data type of expression.

The result can be null. If nth-row is null, the result is the null value. If the number of rows in the OLAP window (including null values if RESPECT NULLS is specified or excluding null values if IGNORE NULLS is specified) is less than the value of nth-row, the result is the null value.

The NTH_VALUE function is a non-deterministic function because the window-order-clause is not required and when window-order-clause is specified, rows with equivalent sort keys have a non-deterministic order.

```
RATIO_TO_REPORT(expression) OVER (...)
CAST(expression AS DECFLOAT(34)) / SUM(expression) OVER(...)
```

The
division is always performed using DECFLOAT(34). The result data type is DECFLOAT(34). If the
argument can be null, the result can be null; if the argument is null, the result is the null
value.- PARTITION BY (partitioning-expression,...)
- Defines the partition within which the function is applied. A partitioning-expression is an expression that is used in defining the partitioning of the result set. Each column-name that is referenced in a partitioning-expression must unambiguously reference a column of the result table of the subselect that contains the OLAP specification (SQLSTATE 42702 or 42703). A partitioning-expression cannot include a scalar fullselect or an XMLQUERY or XMLEXISTS expression (SQLSTATE 42822), or any function or query that is not deterministic or that has an external action (SQLSTATE 42845).
- window-order-clause
- ORDER BY (sort-key-expression,...)
- Defines the ordering of rows within a partition that determines the value of the OLAP function or the meaning of the ROW values in the window-aggregation-group-clause (it does not define the ordering of the query result set).
- sort-key-expression
- An expression used in defining the ordering of the rows within a window partition. Each column name referenced in a sort-key-expression must unambiguously reference a column of the result set of the subselect, including the OLAP function (SQLSTATE 42702 or 42703). A sort-key-expression cannot include a scalar fullselect or an XMLQUERY or XMLEXISTS expression (SQLSTATE 42822), or any function or query that is not deterministic or that has an external action (SQLSTATE 42845). This clause is required for the RANK and DENSE_RANK functions (SQLSTATE 42601).
- ASC
- Uses the values of the sort-key-expression in ascending order.
- DESC
- Uses the values of the sort-key-expression in descending order.
- NULLS FIRST
- The window ordering considers null values
*before*all non-null values in the sort order. - NULLS LAST
- The window ordering considers null values
*after*all non-null values in the sort order. - ORDER OF table-designator
- Specifies that the same ordering used in table-designator should be applied to the result table of the subselect. There must be a table reference matching table-designator in the FROM clause of the subselect that specifies this clause (SQLSTATE 42703). The ordering that is applied is the same as if the columns of the ORDER BY clause in the nested subselect (or fullselect) were included in the outer subselect (or fullselect), and these columns were specified in place of the ORDER OF clause.

- window-aggregation-group-clause
- The aggregation group of a row R is a set of rows defined in relation
to R (in the ordering of the rows of R's partition). This clause specifies
the aggregation group. If this clause is not specified and a window-order-clause
is also not specified, the aggregation group consists of all the rows
of the window partition. This default can be specified explicitly
using RANGE (as shown) or ROWS.
If window-order-clause is specified, the default behavior is different when window-aggregation-group-clause is not specified. The window aggregation group consists of all rows of the partition of R that precede R and that are peers of R in the window ordering of the window partition defined by the window-order-clause.

- ROWS
- Indicates the aggregation group is defined by counting rows.
- RANGE
- Indicates the aggregation group is defined by an offset from a sort key.
- group-start
- Specifies the starting point for the aggregation group. The aggregation group end is the current row. Specification of the group-start clause is equivalent to a group-between clause of the form "BETWEEN group-start AND CURRENT ROW".
- group-between
- Specifies the aggregation group start and end based on either ROWS or RANGE.
- group-end
- Specifies the ending point for the aggregation group. The aggregation group start is the current row. Specification of the group-end clause is equivalent to a group-between clause of the form "BETWEEN CURRENT ROW AND group-end".
- UNBOUNDED PRECEDING
- Includes the entire partition preceding the current row. This can be specified with either ROWS or RANGE. Also, this can be specified with multiple sort-key-expressions in the window-order-clause.
- UNBOUNDED FOLLOWING
- Includes the entire partition following the current row. This can be specified with either ROWS or RANGE. Also, this can be specified with multiple sort-key-expressions in the window-order-clause.
- CURRENT ROW
- Specifies the start or end of the aggregation group based on the current row. If ROWS is specified, the current row is the aggregation group boundary. If RANGE is specified, the aggregation group boundary includes the set of rows with the same values for the sort-key-expressions as the current row. This clause cannot be specified in group-bound2 if group-bound1 specifies value FOLLOWING.
- unsigned-constant PRECEDING
- Specifies either the range or number of rows preceding the current row. If ROWS is specified, then unsigned-constant must be zero or a positive integer indicating a number of rows. If RANGE is specified, then the data type of unsigned-constant must be comparable to the type of the sort-key-expression of the window-order-clause. There can only be one sort-key-expression, and the data type of the sort-key-expression must allow subtraction. This clause cannot be specified in group-bound2 if group-bound1 is CURRENT ROW or unsigned-constant FOLLOWING.
- unsigned-constant FOLLOWING
- Specifies either the range or number of rows following the current row. If ROWS is specified, then unsigned-constant must be zero or a positive integer indicating a number of rows. If RANGE is specified, then the data type of unsigned-constant must be comparable to the type of the sort-key-expression of the window-order-clause. There can only be one sort-key-expression, and the data type of the sort-key-expression must allow addition.

## Examples

- Display the ranking of employees, in order by surname, according
to their total salary (based on salary plus bonus) that have a total
salary more than $30,000.
**SELECT**EMPNO, LASTNAME, FIRSTNME, SALARY+BONUS**AS**TOTAL_SALARY,**RANK() OVER (ORDER BY**SALARY+BONUS**DESC) AS**RANK_SALARY**FROM**EMPLOYEE**WHERE**SALARY+BONUS > 30000**ORDER BY**LASTNAMENote that if the result is to be ordered by the ranking, then replace ORDER BY LASTNAME with:

or**ORDER BY**RANK_SALARY**ORDER BY RANK() OVER (ORDER BY**SALARY+BONUS**DESC)** - Rank the departments according to their average total salary.
**SELECT**WORKDEPT, AVG(SALARY+BONUS)**AS**AVG_TOTAL_SALARY,**RANK() OVER (ORDER BY AVG(**SALARY+BONUS**) DESC) AS**RANK_AVG_SAL**FROM**EMPLOYEE**GROUP BY**WORKDEPT**ORDER BY**RANK_AVG_SAL - Rank the employees within a department according to their education
level. Having multiple employees with the same rank in the department
should not increase the next ranking value.
**SELECT**WORKDEPT, EMPNO, LASTNAME, FIRSTNME, EDLEVEL,**DENSE_RANK() OVER (PARTITION BY**WORKDEPT**ORDER BY**EDLEVEL**DESC) AS**RANK_EDLEVEL**FROM**EMPLOYEE**ORDER BY**WORKDEPT, LASTNAME - Provide row numbers in the result of a query.
**SELECT ROW_NUMBER() OVER (ORDER BY**WORKDEPT, LASTNAME**) AS**NUMBER, LASTNAME, SALARY**FROM**EMPLOYEE**ORDER BY**WORKDEPT, LASTNAME - List the top five wage earners.

Note that a nested table expression was used to first compute the result, including the rankings, before the rank could be used in the WHERE clause. A common table expression could also have been used.**SELECT**EMPNO, LASTNAME, FIRSTNME, TOTAL_SALARY, RANK_SALARY**FROM (SELECT**EMPNO, LASTNAME, FIRSTNME, SALARY+BONUS**AS**TOTAL_SALARY,**RANK() OVER (ORDER BY**SALARY+BONUS**DESC) AS**RANK_SALARY**FROM**EMPLOYEE**) AS**RANKED_EMPLOYEE**WHERE**RANK_SALARY < 6**ORDER BY**RANK_SALARY - For each department, list employee salaries and show how much
less each person makes compared to the employee in that department
with the next highest salary.
**SELECT**EMPNO, WORKDEPT, LASTNAME, FIRSTNME, JOB, SALARY,**LEAD(**SALARY, 1**) OVER (PARTITION BY**WORKDEPT**ORDER BY**SALARY**)**- SALARY**AS**DELTA_SALARY**FROM**EMPLOYEE**ORDER BY**WORKDEPT, SALARY - Calculate an employee's salary relative to the salary of the employee
who was first hired for the same type of job.
**SELECT**JOB, HIREDATE, EMPNO, LASTNAME, FIRSTNME, SALARY,**FIRST_VALUE(**SALARY**) OVER (PARTITION BY**JOB**ORDER BY**HIREDATE)**AS**FIRST_SALARY, SALARY -**FIRST_VALUE(**SALARY**) OVER (PARTITION BY**JOB**ORDER BY**HIREDATE**) AS**DELTA_SALARY**FROM**EMPLOYEE**ORDER BY**JOB, HIREDATE - Calculate the average close price for stock XYZ during the month
of January, 2006. If a stock doesn't trade on a given day, its close
price in the DAILYSTOCKDATA table is the null value. Instead of returning
the null value for days that a stock doesn't trade, use the COALESCE
function and LAG function to return the close price for the most recent
day the stock was traded. Limit the search for a previous not-null
close value to one month before January 1st, 2006.
**WITH V1(**SYMBOL, TRADINGDATE, CLOSEPRICE**) AS ( SELECT**SYMBOL, TRADINGDATE,**COALESCE(**CLOSEPRICE,**LAG(**CLOSEPRICE, 1,**CAST(NULL AS DECIMAL(8,2)), 'IGNORE NULLS') OVER (PARTITION BY**SYMBOL**ORDER BY**TRADINGDATE**) ) FROM**DAILYSTOCKDATA**WHERE**SYMBOL**=**'XYZ'**AND**TRADINGDATE**BETWEEN**'2005-12-01'**AND**'2006-01-31'**) SELECT**SYMBOL**, AVG(**CLOSEPRICE**) AS AVG FROM V1 WHERE**TRADINGDATE**BETWEEN**'2006-01-01'**AND**'2006-01-31'**GROUP BY**SYMBOL - Calculate the 30-day moving average for stocks ABC and XYZ during
the year 2005.
**WITH V1(**SYMBOL, TRADINGDATE, MOVINGAVG30DAY**) AS ( SELECT**SYMBOL, TRADINGDATE,**AVG(**CLOSEPRICE**) OVER (PARTITION BY**SYMBOL**ORDER BY**TRADINGDATE**ROWS BETWEEN 29 PRECEDING AND CURRENT ROW) FROM**DAILYSTOCKDATA**WHERE**SYMBOL**IN ('ABC', 'XYZ') AND**TRADINGDATE**BETWEEN DATE(**'2005-01-01'**) - 2 MONTHS AND**'2005-12-31'**) SELECT**SYMBOL, TRADINGDATE, MOVINGAVG30DAY**FROM V1 WHERE**TRADINGDATE**BETWEEN**'2005-01-01'**AND**'2005-12-31'**ORDER BY**SYMBOL, TRADINGDATE - Use an expression to define the cursor position and query a sliding
window of 50 rows before that position.
**SELECT**DATE,**FIRST_VALUE(**CLOSEPRICE + 100**) OVER****(PARTITION BY**SYMBOL**ORDER BY**DATE**ROWS BETWEEN**50**PRECEDING AND**1**PRECEDING) AS FV****FROM**DAILYSTOCKDATA**ORDER BY**DATE - For
each employee, calculate the average salary for the set of employees
that includes those employees in the same department who have an education
level 1 lower and 1 higher than the employee.
**SELECT**WORKDEPT, EDLEVEL, SALARY,**AVG(**SALARY**)****OVER****(PARTITION BY**WORKDEPT**ORDER BY**EDLEVEL**RANGE BETWEEN**1**PRECEDING AND**1**FOLLOWING)****FROM**EMPLOYEE**ORDER BY**WORKDEPT, EDLEVEL - Calculate
which quartile (4-quantiles) each employee's salary is in.

The result set is:**SELECT**EMPNO, SALARY,**NTILE**(4)**OVER**(**ORDER BY**SALARY)**AS**QUARTILE**FROM**EMPLOYEE**ORDER BY**SALARY`EMPNO SALARY QUARTILE ------ ----------- ----------- 200340 31840.00 1 000290 35340.00 1 200330 35370.00 1 000310 35900.00 1 200310 35900.00 1 000280 36250.00 1 000270 37380.00 1 000300 37750.00 1 200240 37760.00 1 200120 39250.00 1 000320 39950.00 1 000230 42180.00 2 000340 43840.00 2 000170 44680.00 2 000330 45370.00 2 200280 46250.00 2 200010 46500.00 2 000260 47250.00 2 000240 48760.00 2 000250 49180.00 2 000120 49250.00 2 000220 49840.00 2 000190 50450.00 3 000180 51340.00 3 000150 55280.00 3 000200 57740.00 3 000160 62250.00 3 200170 64680.00 3 000110 66500.00 3 000210 68270.00 3 000140 68420.00 3 200140 68420.00 3 200220 69840.00 4 000060 72250.00 4 000130 73800.00 4 000050 80175.00 4 000100 86150.00 4 000090 89750.00 4 000020 94250.00 4 000070 96170.00 4 000030 98250.00 4 000010 152750.00 4 42 record(s) selected.`

- The query in the following example divides the rows into 3 buckets, grouping
them by maximum salary. The maximum salary is included to show what values go into each
bucket:

A portion of the output from the query is in the following table:**SELECT****NTILE**(3)**OVER**(**ORDER BY**MAX_SALARY)**AS**Bucket, MAX_SALARY**FROM**GOSALESDW.EMP_POSITION_DIM;Table 1. Example output BUCKET MAX_SALARY 1 0.00 ... ... 1 35000.00 2 5000.00 ... ... 2 12000.00 3 13000.00 ... ... 3 301500.00 - Find the
cumulative distribution and the relative percentile rank of each employee's salary within their
department.

The result set is:**SELECT**EMPNO, WORKDEPT, SALARY,**CAST**(**CUME_DIST**()**OVER**(**PARTITION BY**WORKDEPT**ORDER BY**SALARY)**AS**DECIMAL(4,3))**AS**CUME_DIST,**CAST**(**PERCENT_RANK**()**OVER**(**PARTITION BY**WORKDEPT**ORDER BY**SALARY)**AS****DECIMAL**(4,3))**AS**PERCENT_RANK**FROM**EMP**ORDER BY**WORKDEPT, SALARY`EMPNO WORKDEPT SALARY CUME_DIST PERCENT_RANK ------ -------- ----------- --------- ------------ 200120 A00 39250.00 0.200 0.000 200010 A00 46500.00 0.400 0.250 000120 A00 49250.00 0.600 0.500 000110 A00 66500.00 0.800 0.750 000010 A00 152750.00 1.000 1.000 000020 B01 94250.00 1.000 0.000 000140 C01 68420.00 0.500 0.000 200140 C01 68420.00 0.500 0.000 000130 C01 73800.00 0.750 0.666 000030 C01 98250.00 1.000 1.000 000170 D11 44680.00 0.090 0.000 000220 D11 49840.00 0.181 0.100 000190 D11 50450.00 0.272 0.200 000180 D11 51340.00 0.363 0.300 000150 D11 55280.00 0.454 0.400 000200 D11 57740.00 0.545 0.500 000160 D11 62250.00 0.636 0.600 200170 D11 64680.00 0.727 0.700 000210 D11 68270.00 0.818 0.800 200220 D11 69840.00 0.909 0.900 000060 D11 72250.00 1.000 1.000 000270 D21 37380.00 0.142 0.000 200240 D21 37760.00 0.285 0.166 000230 D21 42180.00 0.428 0.333 000260 D21 47250.00 0.571 0.500 000240 D21 48760.00 0.714 0.666 000250 D21 49180.00 0.857 0.833 000070 D21 96170.00 1.000 1.000 000050 E01 80175.00 1.000 0.000 000290 E11 35340.00 0.142 0.000 000310 E11 35900.00 0.428 0.166 200310 E11 35900.00 0.428 0.166 000280 E11 36250.00 0.571 0.500 000300 E11 37750.00 0.714 0.666 200280 E11 46250.00 0.857 0.833 000090 E11 89750.00 1.000 1.000 200340 E21 31840.00 0.166 0.000 200330 E21 35370.00 0.333 0.200 000320 E21 39950.00 0.500 0.400 000340 E21 43840.00 0.666 0.600 000330 E21 45370.00 0.833 0.800 000100 E21 86150.00 1.000 1.000 42 record(s) selected.`

- Compare each
employee's salary to the highest salary and second highest salary in the
department.

The result set is:**SELECT**WORKDEPT, SALARY,**FIRST_VALUE**(SALARY)**OVER**(**PARTITION BY**WORKDEPT**ORDER BY**SALARY**DESC**) AS FIRST,**NTH_VALUE**(SALARY, 2)**OVER**(**PARTITION BY**WORKDEPT**ORDER BY**SALARY**DESC**)**AS**SECOND**FROM**EMP**ORDER BY**WORKDEPT, SALARY`WORKDEPT SALARY FIRST SECOND -------- ----------- ----------- -------- A00 39250.00 152750.00 66500.00 A00 46500.00 152750.00 66500.00 A00 49250.00 152750.00 66500.00 A00 66500.00 152750.00 66500.00 A00 152750.00 152750.00 66500.00 B01 94250.00 94250.00 - C01 68420.00 98250.00 73800.00 C01 68420.00 98250.00 73800.00 C01 73800.00 98250.00 73800.00 C01 98250.00 98250.00 73800.00 D11 44680.00 72250.00 69840.00 D11 49840.00 72250.00 69840.00 D11 50450.00 72250.00 69840.00 D11 51340.00 72250.00 69840.00 D11 55280.00 72250.00 69840.00 D11 57740.00 72250.00 69840.00 D11 62250.00 72250.00 69840.00 D11 64680.00 72250.00 69840.00 D11 68270.00 72250.00 69840.00 D11 69840.00 72250.00 69840.00 D11 72250.00 72250.00 69840.00 D21 37380.00 96170.00 49180.00 D21 37760.00 96170.00 49180.00 D21 42180.00 96170.00 49180.00 D21 47250.00 96170.00 49180.00 D21 48760.00 96170.00 49180.00 D21 49180.00 96170.00 49180.00 D21 96170.00 96170.00 49180.00 E01 80175.00 80175.00 - E11 35340.00 89750.00 46250.00 E11 35900.00 89750.00 46250.00 E11 35900.00 89750.00 46250.00 E11 36250.00 89750.00 46250.00 E11 37750.00 89750.00 46250.00 E11 46250.00 89750.00 46250.00 E11 89750.00 89750.00 46250.00 E21 31840.00 86150.00 45370.00 E21 35370.00 86150.00 45370.00 E21 39950.00 86150.00 45370.00 E21 43840.00 86150.00 45370.00 E21 45370.00 86150.00 45370.00 E21 86150.00 86150.00 45370.00 42 record(s) selected.`