Sql query to build average value

I'm trying to build a query capture the below information. Any help is really appreciated.
Table looks something like below.
Room
Subject
Students
A1
Science
10
A1
Maths
20
B1
Science
15
B2
English
25
C1
Deutsch
20
A1
French
15
C1
English
10
How can i write a query so that i takes the average of students in each room and display the output? I need to write a query so that it also picks up any new rooms and students added.
Average is sum of total students in room by number of times each room is specified.
eg: A1 is listed 3 times a the result would be 10+20+15 divived by 3.
A1 B1 B2 C1
15 15 20 15
Thanks You
KK

This is called pivot. And you need to know all rooms upfront. Anyway, assuming you are on 11G:
SQL> with t as (
2             select 'A1' room,'Science' subject,10 students from dual union all
3             select 'A1','Maths',20 from dual union all
4             select 'B1','Science',15 from dual union all
5             select 'B2','English',25 from dual union all
6             select 'C1','Deutsch',20 from dual union all
7             select 'A1','French',15 from dual union all
8             select 'C1','English',10 from dual
9            )
10 select "'A1'_X" A1,
11          "'B1'_X" B1,
12          "'B2'_X" B2,
13          "'C1'_X" C1
14    from t
15    pivot(
16          avg(students) x,
17          max(subject) y
18          for room in ('A1','B1','B2','C1')
19         )
20 /
        A1         B1         B2         C1
        15         15         25         15
SQL>
SY.

Similar Messages

Write the sql query to find largest value in row wise without using   great

write the sql query to find largest value in row wise without using
greatest fuction?

Another not so good way, considering you want greatest of 4 fields from a single record:
SQL> ed
Wrote file afiedt.buf
1 with t as (Select 100 col1,200 col2,300 col3,400 col4 from dual
2 union select 500,600,700,800 from dual
3 union select 900,1000,1100,1200 from dual
4 union select 1300,1400,1500,1600 from dual
5 union select 1700,1800,1900,2000 from dual
6 union select 2100,2200,2300,2400 from dual
7 union select 2800,2700,2600,2500 from dual
8 union select 2900,3000,3100,3200 from dual)
9 SELECT (CASE WHEN col1 > col2 THEN col1 ELSE col2 END) Max_value
10 FROM
11 (SELECT (CASE WHEN col1_col2 > col2_col3 THEN col1_col2 ELSE col2_col3 END) col1,
12         (CASE WHEN col2_col3 > col3_col4 THEN col2_col3 ELSE col3_col4 END) col2,
13         (CASE WHEN col3_col4 > col4_col1 THEN col3_col4 ELSE col4_col1 END) col3
14 FROM
15 (SELECT (CASE WHEN col1 > col2 THEN col1 ELSE col2 END) col1_col2,
16         (CASE WHEN col2 > col3 THEN col2 ELSE col3 END) col2_col3,
17         (CASE WHEN col3 > col4 THEN col3 ELSE col4 END) col3_col4,
18         (CASE WHEN col4 > col1 THEN col4 ELSE col1 END) col4_col1
19* FROM t))
SQL> /
MAX_VALUE
       400
       800
      1200
      1600
      2000
      2400
      2800
      3200
8 rows selected.
SQL> Edited by: AP on Sep 21, 2010 6:29 AM

How to check the sql:query is return null value

I have use :
<sql:query var="sql1" dataSource="${db}">
select col_name from table_name
where a=<c:out value="${row.test1}"/>
and b='<c:out value="${row.test2}"/>'
</sql:query>
So, how can I check this statement return null value which is no record within this table?

The Result should never be null but can be empty. You can check if the Result is empty using an if tag and checking the rowCount property:
    <sql:query var="books"
      sql="select * from PUBLIC.books where id = ?" >
      <sql:param value="${bookId}" />
    </sql:query>
     <c:if test="${books.rowCount > 0}">
     </c:if>http://java.sun.com/j2ee/1.4/docs/tutorial/doc/JSTL7.html#wp84217
Look for query Tag Result Interface

SQL Query to find cumulative values for a Financial Year

Dear users,
My requirement is to create a SQL query for a table/view where I have day-wise data. I want to find out cumulative values for financial year by giving any date. It should add the values from start of financial year till that date in the financial year.
I think creating a view of such type will post heavy burden on resources since accuimulation will be done for each day upto that day.
Thanks

Dear users,
My requirement is to create a SQL query for a
table/view where I have day-wise data. I want to
find out cumulative values for financial year by
giving any date. It should add the values from start
of financial year till that date in the financial
year.
I think creating a view of such type will post heavy
burden on resources since accuimulation will be done
for each day upto that day.
ThanksKumar's solution will serve yours purpose but m not agreed
I think creating a view of such type will post heavy
burden on resources since accuimulation will be done
for each day upto that day. Khurram

SQL query returns varchar - default value type!!!

On a field in my portal form there is a default value type of 'SQL query returns varchar', where can I put this sql to get a default value from a table?

Hi again
I have this code in 'additional pl/sql code' - '...before displaying the page'. But it comes up with an error when I run the form.
declare
prop_v varchar2(20);
group_v varchar2(3);
el1_v varchar2(3);
blk varchar2(10) := 'DEFAULT';
begin
prop_v := p_session.get_value_as_varchar2(p_block_name=>'DEFAULT', p_attribute_name => 'l_property_p');
group_v := p_session.get_value_as_varchar2(p_block_name=>'DEFAULT', p_attribute_name => 'l_group_p');
select element_code
into el1_v
from eh_risk_element_detail
where property_ref = prop_v
and group_code = group_v
and line_no = 1;
p_session.set_value(p_block_name => blk, p_attribute_name => 'L_ELEMENT1_P', p_value => el1_v);
end;
Rich

LOV SQL query dependent on column value

Hi Gurus,
I have a tabular form, a column of which I would like to display as a dropdown whose list of values is a SQL query containing a where clause on another column value.
For example, say the tabular form displays questions, and that the answers to the different questions are to be picked in list of values that are different for each question. I have tried the following queries for the dropdown list of values:
1- select value_text, value_text from list_of_values_table where question_id=#QUESTION_ID#
2- select value_text, value_text from list_of_values_table where question_id=:QUESTION_ID
3- select value_text, value_text from list_of_values_table where question_id=&QUESTION_ID.
In the 3 cases, I get an error when I run the application saying that the SQL statement is incorrect.
Any ideas?
Thanks in advance,
Guillauem

Anton,
Yes, I am creating a region based on a sql query. The query is the following:
select q.id quest_id, q.name, q.data_type_id, q.lov_flag, a.id answer_id, a.answer_text, a.org_id
from gwb_questions q left join gwb_answers a on q.id=a.question_id, gwb_answers ans right join gwb_orgs o on ans.org_id=o.id
where q.MODULE_ID=:P2_MODULE_ID and o.id=:P2_ORG_ID
Now, in the 'answer_text' column, I would like to display a dropdown containing values that come from a separate table and that depend on the value of the quest_id column. So in the Column Attributes for 'answer_text', I selected Select List (query based LOV) for the Tabular Form Element, and I entered the query mentioned before in the List of Values section (select value_text, value_text from list_of_values_table lov where lov.question_id= ?).
I am not using any API.
Does that make sense?
Thanks for your help,
Guillaume

Need of SQL query in selecting distinct values from two tables

hi,
I need a query for selecting distinct values from two tables with one condition.
for eg:
there are two tables a & b.
in table a there are values like age,sex,name,empno and in table b valuses are such as age,salary,DOJ,empno.
here what i need is with the help of empno as unique field,i need to select distinct values from two tables (ie) except age.
can anybody please help me.
Thanks in advance,
Ratheesh

Not sure what you mean either, but perhaps this will start a dialog:
SELECT DISTINCT a.empno,
                a.name,
                a.sex,
                b.salary,
                b.doj
FROM    a,
        b
WHERE   a.empno = b.empno;Greg

Sql query - Selecting last recorded values for each date in specified period

Hello,
Can someone please help me with my problem.
I'm trying to get last recorded balance for each day for specific box (1 or 2) in specified period of days from ms access database using ADOTool.
I'm trying to get that information with SQL query but so far unsuccessfully...
My table looks like this:
Table name: TestTable
Date Time Location Box Balance
20.10.2014. 06:00:00 1 1 345
20.10.2014. 12:00:00 1 1 7356
20.10.2014. 18:45:00 1 1 5678
20.10.2014. 23:54:00 1 1 9845
20.10.2014. 06:00:02 1 2 35
20.10.2014. 12:00:04 1 2 756
20.10.2014. 18:45:06 1 2 578
20.10.2014. 23:54:10 1 2 845
21.10.2014. 06:00:00 1 1 34
21.10.2014. 12:05:03 1 1 5789
21.10.2014. 15:00:34 1 1 1237
21.10.2014. 06:00:00 1 2 374
21.10.2014. 12:05:03 1 2 54789
21.10.2014. 15:00:34 1 2 13237
22.10.2014. 06:00:00 1 1 8562
22.10.2014. 10:00:00 1 1 1234
22.10.2014. 17:03:45 1 1 3415
22.10.2014. 22:00:00 1 1 6742
22.10.2014. 06:00:05 1 2 562
22.10.2014. 10:00:16 1 2 123
22.10.2014. 17:03:50 1 2 415
22.10.2014. 22:00:10 1 2 642
23.10.2014. 06:00:00 1 1 9876
23.10.2014. 09:13:00 1 1 223
23.10.2014. 13:50:17 1 1 7768
23.10.2014. 19:47:40 1 1 3456
23.10.2014. 21:30:00 1 1 789
23.10.2014. 23:57:12 1 1 25
23.10.2014. 06:00:07 1 2 976
23.10.2014. 09:13:45 1 2 223
23.10.2014. 13:50:40 1 2 78
23.10.2014. 19:47:55 1 2 346
23.10.2014. 21:30:03 1 2 89
23.10.2014. 23:57:18 1 2 25
24.10.2014. 06:00:55 1 1 346
24.10.2014. 12:30:22 1 1 8329
24.10.2014. 23:50:19 1 1 2225
24.10.2014. 06:01:00 1 2 3546
24.10.2014. 12:30:26 1 2 89
24.10.2014. 23:51:10 1 2 25
Let's say the period is 21.10.2014. - 23.10.2014. and I want to get last recorded balance for box 1. for each day. The result should look like this:
Date Time Location Box Balance
21.10.2014. 15:00:34 1 1 1237
22.10.2014. 22:00:00 1 1 6742
23.10.2014. 23:57:12 1 1 25
So far I've managed to write a query that gives me balance for ONLY ONE date (date with highest time in whole table), but I need balance for EVERY date in specific period.
My incorrect code (didn't manage to implement "BETWEEN" for dates...):
SELECT TestTable.[Date], TestTable.[Time], TestTable.[Location], TestTable.[Box], TestTable.[Balance]
FROM TestTable
WHERE Time=(SELECT MAX(Time)
FROM TestTable
WHERE Location=1 AND Box=1 );
Tnx!
Solved!
Go to Solution.

For loop
following query keep day (here 24 in below query) Variable from ( 1 to 28-29/30/31 as per month)
SELECT TOP 1 TestTable.[Date], TestTable.[Time], TestTable.[Location], TestTable.[Box], TestTable.[Balance]
FROM Test Table.
WHERE Time=(SELECT MAX(Time) FROM TestTable WHERE Location=1 AND Box=1 )
AND DATE = "2014-10-24";
PBP (CLAD)
Labview 6.1 - 2014
KUDOS ARE WELCOMED.
If your problem get solved then mark as solution.

SQL Query constructing for searching values in Tables single Column

I have Table USER_SERVICES with 2 Columns USER_NAME, Services. Please find below sample data on USER_SERVICES Table.
A user can be assigned with multiple services(service1, service2 etc.,). So we store data as below :
USER_NAME Services
user1 service1
user1 service2
user1 service3
user2 service1
user2 service2
user3 service3
user4 service4
I need to frame a SQL Query to 'select users assigned with Service A and Service B and Service n'.
Note: 'And' condition is used when Searching for multiple services.
Example: The SQL Query has to dynamically handle condition if i give Single Service, multiple Services(service1 and service2 e.t.c,)
If i say select users assigned with service1 and service2, from the above Table, result should be user1 and user2
If i say select users assigned with service1 and service2 and service3, from the above Table, result should be user1
If i say select users assigned with service4 from the above table, result should be user4
If i say select users assigned with service1 from the above table, result should be user2,user1
If i say select users assigned with service1 and service2 from the above table, result should be user2,user1
How do i construct the SQL Query. Any help will be appreciated.
Thanks,
Sathish
Alternate email: [email protected]

How it will be stored? In a string or a table or a collection type?
If you have it in a table you can do like this.
with t
as
select 'user1' user_name, 'service1' services from dual union all
select 'user1', 'service2' from dual union all
select 'user1', 'service3' from dual union all
select 'user2', 'service1' from dual union all
select 'user2', 'service2' from dual union all
select 'user3', 'service3' from dual union all
select 'user4', 'service4' from dual
t1 as
select 'service1' services from dual union all
select 'service2' from dual
select distinct user_name
from (
select t.user_name, t.services, t1.services, count(t1.services) over(partition by t.user_name) cnt, t1.cnt cnt_1
from t
left join (select t1.*, count(*) over() cnt from t1) t1 on t1.services = t.services
where cnt = cnt_1

SQL query to store float values in french culture.

Here is how my requirement goes..
I have an application where users can store float values into the SQL server. Here float values are period(.) based. I have now started supporting the users who use the french culture where the float values are Comma(,) based. Example: 13.75 is represented
as 13,75. Instead of making changes to my code i.e the way i am inserting/retrieving the date now, is there a way i can handle this requirement based on culture. Like, if I specify the culture, will I be able to insert float inputs as comma(,) based values
without disturbing my existing code?
Any help is appreciated
Thanks,
Chandrahas.
-Chandrahas

is there a way i can handle this requirement based on culture.
Hello Chandrahas,
SQL Server don't store any culture info for numeric values; they are plain numeric.
It's part of the frontend to represent / accept values depending on the culture setting of the client.
Olaf Helper
[ Blog] [ Xing] [ MVP]

SQL Query / Insert Builder

I am making a Java program to access / update a database via JDBC. I need to make string queries like this:
db.update(
"INSERT INTO sample_table(str_col,num_col) VALUES('Ford', 100)");
The query above is simple, but you can see how assembling the query made out of constant string fragments and variables that my program updates can become more complicated. For example, I need to also store a date. Is there a utility similar to StringBuilder for building strings that can make this process easier? I am looking for a function specifically to build SQL queries. It might look something like this:
querybuilder.insert(<table>, <name1>, <value1>, <name2>, <value2>....<nameN>, <valueN>);
Where table is the name of the table that I would be inserting into and name is the column name of the table, value would be the value to be stored under the column name. Are there SQL functions for this?

I made such a library myself (called it an SQLFormatter), but haven't put it on the web because I've not thought there would be a general interest in it. Essentially, I can create an Insert Into statement like this:
SQLFormatter formatter = SQLFormatter.get(myStatement);
String sql = formatter.createInsertIntoStatement("MyTable", new String[] {"Field1", "Field2", "Field3"}, new Object[] {value1, value2, value3});I'd be happy to share it with you, but I'm not sure about how I can make it reach you. Do I need to post it on a web site?

SQL Query - Multiple records from value of field

I have a table that has the following lay out
ID
AreaUnitServes
Filter1Quantity
Filter1Size
Filter2Quantity
Filter2Size
And I’m trying to convert it to
FkPSAUnitsID
Size
Location
I’ve got the following query started but I’m stuck on how to INSERT INTO multiple records by the value of Filter1Quantity. I also have to query for Filter2Quantity.
INSERT
INTO RapidServ.dbo.PSAFilters
(FkPSAUnitsID,Size,Location)
SELECT ID
AS FkPSAUnitsID,Filter1Size
AS Size,
AreaUnitServes
AS Location
FROM RapidServ.dbo.PSA
Thanks,
why767

Please follow basic Netiquette and post the DDL we need to answer this. Follow industry and ANSI/ISO standards in your data. You should follow ISO-11179 rules for naming data elements. You should follow ISO-8601 rules for displaying temporal data. We need
to know the data types, keys and constraints on the table. Avoid dialect in favor of ANSI/ISO Standard SQL. And you probably need to read and download the PDF for:
https://www.simple-talk.com/books/sql-books/119-sql-code-smells/
>> I have a table that has the following lay out <<
How nice for you! Why did you draw ASCII pictures? It has all kinds of magical names. The table is nameless because it is forbidden by a wizard to speak its name? There are generic, universal “size” and “location”of nothing in particular. Is the “fk-”
prefix a meta data design error for “foreign key”? We never do that in RDBMS; name a data element for what it is by its nature, not for how it was used in one place in one schema. This is why we have no magical “id” in a valid schema. Data elements do not
change names from table to table.
You seem to have inherited a pile of garbage with a repeated group in it. Look up First Normal Form (1NF). You also do not know why row is not a record and why fields are not columns. Did you notice that “area_unit_serves” is a sentence and not
a name?
>> I’ve got the following query started but I’m stuck on how to INSERT INTO multiple records [sic] by the value of Filter1Quantity. I also have to query for Filter2Quantity. <<
My guess until I get a usable business rules and DDL is that you can use a UNION something like this skeleton:
INSERT INTO PSA_Filters (psa_units_id, filter_size, area_service_unit)
SELECT psa_units_id, filter_1_size, area_service_unit
FROM Magic_Nameless_Stuff
UNION ALL
SELECT psa_units_id, filter_2_size, area_service_unit
FROM Magic_Nameless_Stuff;
--CELKO-- Books in Celko Series for Morgan-Kaufmann Publishing: Analytics and OLAP in SQL / Data and Databases: Concepts in Practice Data / Measurements and Standards in SQL SQL for Smarties / SQL Programming Style / SQL Puzzles and Answers / Thinking
in Sets / Trees and Hierarchies in SQL

SQL query concat - numeric or value error

I am getting numeric or value error when concatenating sql script..
Here is the sample, I have in the stored proc.. firstpart:_ works fine if I comment the secondpart:_. (I modified the query because I am posting in the public forums)
V_SAMPLEQUERY VARCHAR2(2000);
firstpart:_
V_SAMPLEQUERY := '
SELECT
AB.ABCDID AS ABCDID,
CD.MEMBERID AS MEMBERID,
CD.FNAME AS FNAME,
CD.LNAME AS LNAME,
CD.ACCOUNT AS ACCOUNT,
EF.ZIP AS ZIP,
AB.INSERTTIME AS INSERTTIME,
AB.INSERTBY AS INSERTBY,
ES.NAME AS STATUS,
MYFUNCTION(E.ABCDID) AS AMOUNT,
PA.NAME AS SOUSENAME,
R.CODE AS BUDGETCODE,
WX.ACCOUNTID as ACCOUNTID,
AB.SOMETYPE AS SOMETYPE,
AB.ACCTREP,
ED.TYPE AS TYPE,
AB.NOTES AS NOTES,
GH.AREACODE || '''' || GH.PHONE_NUMBER AS PHONENUMBER,
ED.REQUESTEDDATE,
ED.BOOKED,
ED.CALLERINFO
FROM PEOPLES AB,
LOCATIONS CD,
LOCATIONTYPES EF,
ACCOUNTS GH,
ACCOUNTdetails IJ,
ACCOUNTstatus KL,
ACCOUNTMEMBERDETAILS MN,
MEMBERS OP,
BUDGET QR,
BCODES ST,
ACCOUNTSYSTEM UV,
INFOCALL WX,
PHONE_NUMBERS YZ
WHERE AT.NAME = ''SAVINGS''
andCD.MEMBERID = PH.MEMBERID
andCD.MEMBERID =EF.MEMBERID
and AT.ADDRESSTYPEID =EF.ADDRESSTYPEID
andCD.MEMBERID =AB.MEMBERID
andAB.STATUS = ES.STATUS(+)
andAB.ABCDID = ED.ABCDID
andAB.ABCDID = EP.ABCDID(+)
and EP.MEBER_ID = PA.MEBER_ID(+)
andAB.BID = R.BID(+)
andAB.SAMPLEID = PR.SAMPLEID(+)
andAB.ABCDID = BSG.ABCDID(+)
andAB.INFOCALLID = C.INFOCALLID(+)
and YZ.SOMETYPEID = ''10000''
ANDAB.INSERTTIME > SYSDATE - 35
ANDAB.INSERTTIME < ''
AND WX.NAME IN (''ABCD'',
''EFGH'',
''IJKL'',
''MNOP'',
''QRST'',
''UVWX'')
AND MN.NAME = ''FINISHED'' '
secondpart:_ ***ERROR PART***
V_SAMPLEQUERY := V_SAMPLEQUERY || ' ORDER BY AB.USER'; -- Here I am getting error saving ORA-06502 - numeric or value error

Hi,
Wheneve you have a problem, prlease post a complete test script that people can run to re-create the problem and test their ideas. Include CREATE TABLE and INSERT statements for any tables used, abnd the results you want it to produce.
SeshuGiri wrote:
I am getting numeric or value error when concatenating sql script.. Are you really getting the error when you concatenate, or when you try to execute the resulting string?
Here is the sample, I have in the stored proc.. firstpart:_ works fine if I comment the secondpart:_. (I modified the query because I am posting in the public forums)
V_SAMPLEQUERY VARCHAR2(2000);Is that big enough? It looks like the string is right around 1000 characters; depending on your character set, that could be more than 2000 bytes. VARCHAR2s in PL/SQL can hold up to 32767 bytes.
firstpart:_
V_SAMPLEQUERY := '
SELECT
AB.ABCDID AS ABCDID,
CD.MEMBERID AS MEMBERID,
CD.FNAME AS FNAME,
CD.LNAME AS LNAME,
CD.ACCOUNT AS ACCOUNT,
EF.ZIP AS ZIP,
AB.INSERTTIME AS INSERTTIME,
AB.INSERTBY AS INSERTBY,
ES.NAME AS STATUS,
MYFUNCTION(E.ABCDID) AS AMOUNT,
PA.NAME AS SOUSENAME,
R.CODE AS BUDGETCODE,
WX.ACCOUNTID as ACCOUNTID,
AB.SOMETYPE AS SOMETYPE,
AB.ACCTREP,
ED.TYPE AS TYPE,
AB.NOTES AS NOTES,
GH.AREACODE || '''' || GH.PHONE_NUMBER AS PHONENUMBER,
ED.REQUESTEDDATE,
ED.BOOKED,
ED.CALLERINFO
FROM PEOPLES AB,
LOCATIONS CD,
LOCATIONTYPES EF,
ACCOUNTS GH,
ACCOUNTdetails IJ,
ACCOUNTstatus KL,
ACCOUNTMEMBERDETAILS MN,
MEMBERS OP,
BUDGET QR,
BCODES ST,
ACCOUNTSYSTEM UV,
INFOCALL WX,
PHONE_NUMBERS YZ
WHERE AT.NAME = ''SAVINGS''
andCD.MEMBERID = PH.MEMBERID
andCD.MEMBERID =EF.MEMBERID
and AT.ADDRESSTYPEID =EF.ADDRESSTYPEID
andCD.MEMBERID =AB.MEMBERIDYou need some whitespace after the keyword "and", in the line above and also several places below.
andAB.STATUS = ES.STATUS(+)
andAB.ABCDID = ED.ABCDID
andAB.ABCDID = EP.ABCDID(+)
and EP.MEBER_ID = PA.MEBER_ID(+)
andAB.BID = R.BID(+)
andAB.SAMPLEID = PR.SAMPLEID(+)
andAB.ABCDID = BSG.ABCDID(+)
andAB.INFOCALLID = C.INFOCALLID(+)
and YZ.SOMETYPEID = ''10000''
ANDAB.INSERTTIME > SYSDATE - 35
ANDAB.INSERTTIME < '' Did something get cut off here?
AND WX.NAME IN (''ABCD'',
''EFGH'',
''IJKL'',
''MNOP'',
''QRST'',
''UVWX'')
AND MN.NAME = ''FINISHED'' 'It looks like you're constructing a string for EXECUTE IMMEDIATE, but why not just use a static query?
secondpart:_ ***ERROR PART***
V_SAMPLEQUERY := V_SAMPLEQUERY || ' ORDER BY AB.USER'; -- Here I am getting error saving ORA-06502 - numeric or value error
USER is the name of a built-in function, which means it's not a good name for your own column. Try user_name instead.

Dynamic SQL query to get single value from list in a column

I have two tables: tblWorkers and tblSkills. tblWorkers has a
column, Skills, which is populated from a multiple-checkbox form
field with one or more skill_IDs from tblSkills, so each
tblWorkers.Skills consists of a list of one or more comma-delimited
values. For any Skill_ID, I need to generate a listing of all
Workers with the corresponding skill, so I have tried to do
something along the lines of SELECT WorkerName FROM tblWorkers
WHERE Skills IN (Skills, #FORM.Skill_ID#) ... or WHERE Skills IN
(ListFind(Skills, #FORM.Skill_ID#)) ... etc. ??? My results (once I
got data type mismatches out of the way) return all Workers, not
just those with the desired Skill. There must be an easy way to do
this ... How do people with a bit more CF/SQL experience than I
have do this???

quote:
Originally posted by:
lucapac
I have two tables: tblWorkers and tblSkills. tblWorkers has a
column, Skills, which is populated from a multiple-checkbox form
field with one or more skill_IDs from tblSkills, so each
tblWorkers.Skills consists of a list of one or more comma-delimited
values. For any Skill_ID, I need to generate a listing of all
Workers with the corresponding skill, so I have tried to do
something along the lines of SELECT WorkerName FROM tblWorkers
WHERE Skills IN (Skills, #FORM.Skill_ID#) ... or WHERE Skills IN
(ListFind(Skills, #FORM.Skill_ID#)) ... etc. ??? My results (once I
got data type mismatches out of the way) return all Workers, not
just those with the desired Skill. There must be an easy way to do
this ... How do people with a bit more CF/SQL experience than I
have do this???
As Kronin implied, we normalize our databases. If you don't
understand that answer, the book "Database Design for Mere Mortals"
is often mentioned on this forum.

SQL query to build search form

I have a table Department, with primary key DeptId.
Table: Department
DeptId Text
1 xx
2 yy
3 zz
I have another table Person, with key (not primary, and not unique) PersonId, and foreign key DeptId
Table: Person
PersonId DeptId
10 1
11 1
11 2
12 2
I want to build a search form, with search fields PersonId and DeptId, so that in the resulting table, some rows from the Department table are returned. It should obey the following:
- If both PersonId and DeptId are selected, and there is a row in the table Person that matches the selection, the row from the Department table should be returned.
- If only PersonId is selected, any row in Department table that matches a DeptId corresponding to that PersonId should be returned.
- If only DeptId is selected, return that row from Department exactly once (even if that DeptId doesn't appear in Person table, like DeptId 3 in this example)
- If neither is selected, return all rows from Department
I'm using JDeveloper 11.1.2.2.0.
Thanks,
Zach

Hi Navaneeth,
Taking the example from your link:
SELECT org.org_id, org.name FROM organisations org WHERE EXISTS
(SELECT 1 FROM events evt WHERE evt.org_id = org.org_id
AND evt.contact_name = 'Eddie Harris')
Let's say I make evt.contact_name a dropdown list, and when I query it, I leave it unselected. Would it return org.org_id, org.name from a row that has no corresponding event row?

Sql query to build average value

Similar Messages

Maybe you are looking for