I apologize if this is off-topic. If it is off-topic, please direct me to a
more appropriate group.
I am writing an SQL query for a project and am a little stuck. I need to
classify a list of employees into age brackets. (E.g.. 16-15, 25-35, etc.) I
am using the Micro Focus NetExpress SQL Wizard in DB2 compatibility mode.
I created a table AgeBrackets
Range | Lower | Upper
-----------------------
16-25| 16 |25
25-35|25 |35
Then I created a view:
CREATE VIEW vAgeRange (
Range,
Start,
Last)
As
SELECT A1.RangeDesc,
Start_Date = Today - A1.RangeLow years + 1 days,
End_Date = Today - A1.RangeHigh years
FROM ALAMEDA.ALAMEDA.AGERANGE A1
To put the age brackets in dates starting from today, so I get the earliest
and latest date someone can be born to be in an age bracket.
I am now trying to create a view where for each row in my EMPLOYEE table, I
want to compare the Employee_DateOfBirth to the Start_Date, end_Date and if
it is BETWEEN those dates, I want to insert the RangeDesc into the new view.
This is what I tried:
SELECT E1.EMPLOYEE, E1.DoB, V1.Range
FROM ALAMEDA.ALAMEDA.EMPLOYEE E1,
ALAMEDA.ALAMEDA.VAGERANGE V1
WHERE (E1.DOB BETWEEN V1.Start AND V1.Last)
But this returns an empty Query.
I'm a little stuck and any pointers will be really helpful.
thanks
Mike
--
Mike B 2 1295
"Mike B" <mr********************@nomail.yahoo.com> wrote in message
news:42********@news1.prserv.net I apologize if this is off-topic. If it is off-topic, please direct me to a more appropriate group.
<snipped >
I finally figured it out.
This is what I tried:
SELECT E1.EMPLOYEE, E1.DoB, V1.Range FROM ALAMEDA.ALAMEDA.EMPLOYEE E1, ALAMEDA.ALAMEDA.VAGERANGE V1 WHERE (E1.DOB BETWEEN V1.Start AND V1.Last)
But this returns an empty Query.
All I had to do was to change the WHERE clause to
WHERE (E1.DOB Between v1.Last and V1.Start) I'm a little stuck and any pointers will be really helpful.
I apologize for my off-topic post. Won't do it again.
--
Mike B
"Mike B" <mr********************@nomail.yahoo.com> wrote in message
news:42********@news1.prserv.net... I apologize if this is off-topic. If it is off-topic, please direct me to a more appropriate group.
I am writing an SQL query for a project and am a little stuck. I need to classify a list of employees into age brackets. (E.g.. 16-15, 25-35, etc.) I am using the Micro Focus NetExpress SQL Wizard in DB2 compatibility mode.
I created a table AgeBrackets
Range | Lower | Upper ----------------------- 16-25| 16 |25 25-35|25 |35
Then I created a view:
CREATE VIEW vAgeRange ( Range, Start, Last) As SELECT A1.RangeDesc, Start_Date = Today - A1.RangeLow years + 1 days, End_Date = Today - A1.RangeHigh years FROM ALAMEDA.ALAMEDA.AGERANGE A1
To put the age brackets in dates starting from today, so I get the earliest and latest date someone can be born to be in an age bracket.
I am now trying to create a view where for each row in my EMPLOYEE table, I want to compare the Employee_DateOfBirth to the Start_Date, end_Date and if it is BETWEEN those dates, I want to insert the RangeDesc into the new view.
This is what I tried:
SELECT E1.EMPLOYEE, E1.DoB, V1.Range FROM ALAMEDA.ALAMEDA.EMPLOYEE E1, ALAMEDA.ALAMEDA.VAGERANGE V1 WHERE (E1.DOB BETWEEN V1.Start AND V1.Last)
But this returns an empty Query.
Sure. The inner product of two tables without a common set of column values
is an empty set.
What you need is a nested SELECT clause:
SELECT
E1.EMPLOYEE,
E1.DOB,
(SELECT V1.RANGE
FROM ALAMEDA.ALAMEDA.VAGERANGE V1
WHERE E1.DOB BETWEEN V1.START and V1.LAST
AND E1.DOB IS NOT NULL
AND E1.DOB <= TODAY
AND E1.DOB > (TODAY - 130 YEARS)
LIMIT TO 1 ROW)
FROM ALAMEDA.ALAMEDA.EMPLOYEE E1;
The nested SELECT clause locks the E1.DOB value for each row of EMPLOYEE -
and then
tests each E1.DOB value against each row of the view VAGERANGE to pull the
V1.RANGE value. This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics
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