Please-Help with SQL NewBee
Hello please help me with an sql, I have a table with 2 fields, I want to check if one of the field is blank, mining that it dosn't contain anything.
if table called Test has 2 fields name ,age.
how do I check in sql if age is blank.
thanks
Are you trying to do this through mSQL in Lite?
- Junius
Similar Messages
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Please help with SQL amount calulation
-- Results
with t as (
select 'P11877' Mstr_Program, 1 Year_of_study, 'BUSI1490' program_module, 20 no_of_stud, 1 rank, 30 program_credits, 30 cumm_credits from dual union all
select 'P11877', 1, 'COMP1365', 20, 2, 30, 60 from dual union all
select 'P11877', 1, 'BUSI1375', 20, 3, 30, 90 from dual union all
select 'P11877', 1, 'COMP1363', 20, 4, 30, 120 from dual union all
select 'P11877', 2, 'MARK1174', 8, 1, 30, 30 from dual union all
select 'P11877', 2, 'FINA1068', 8, 2, 15, 45 from dual union all
select 'P11877', 2, 'INDU1062', 8, 3, 30, 75 from dual union all
select 'P11877', 2, 'BUSI1329', 8, 4, 15, 90 from dual union all
select 'P11877', 2, 'MARK1138', 8, 5, 30, 120 from dual)
select * from t;-- Each MSTR_PROGRAM can have 1 or many program_module
-- MSTR_PROGRAM's can run for 1 or 2 years (case above is two years) so some modules run in year 1 and some in year 2
-- NO_OF_STUD is the number of students on the module
-- RANK basically ranks the modules by the number of students on them grouped by program and year
-- e.g.row_number() OVER (PARTITION BY Mstr_Program, Year_of_study) ORDER BY COUNT(STUDENT_ID) DESC) rank
-- PROGRAM_CREDITS: each module has a fixed number of credits
-- CUMM_CREDITS: Increments the credit count of modules
-- SUM(program_credits * 10) OVER (PARTITION BY Mstr_Program, Year_of_study
-- ORDER BY count(STUDENT_ID) desc ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumm_credits
-- I want to trim of any modules once the CUM_CREDITS hits 120. As seen above. I achieve this by wrapping the main query is another SELECT then LIMIT
-- that WHERE cum_credit <=120.
-- But what I need is:
-- In some cases the the cumm_credit maybe on lets say 90credits then the next module is worth 40 credits. This next module will not show as it
-- will be greater than 120 credits, so i need to pro-rata it:
-- So if credit_count > 120, then the last module is counted pro-rata as follows: 1- ((credit count - 120) / credits from last module
-- Can anyone help with how I can incorporate this into my current code: The SELECT portion of the Original SQL is below: I simplified column names
-- e.t.c in the above so they wont be the same
SELECT * FROM (
SELECT
,SR_PROGRAM Mstr_Program
,DECODE (SORLCUR_YEAR, 1, 1,
2, 2,
3, 3,
4, 3, SR_YEAR) year_of_study
,SCT_SUBJ_CODE||SCT_CRSE_NUMB program_module
,COUNT(student_ID) no_of_stud
,row_number() OVER (PARTITION BY sr_program,
DECODE (sr_year, 1, 1,
2, 2,
3, 3,
4, 3, SR_YEAR) ORDER BY COUNT(student_id) DESC, scbcrse_title asc) rank
,(SCT_CREDIT_HRS * 10) program_credits
,SUM(SCT_CREDIT_HRS * 10) OVER (PARTITION BY sr_program, DECODE (sorlcur_year, 1, 1,
2, 2,
3, 3,
4, 3, SR_YEAR)
ORDER BY count(student_id) desc ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumm_credits
WHERE cumm_credit <=120
ORDER BY Mstr_Program, YEAR_OF_STUDY, RANK asc;Maybe
SELECT Mstr_Program,year_of_study,program_module,no_of_stud,rank,program_credits old_program_credits,cumm_credits old_cumm_credits,
case when cumm_credits > 120
then program_credits - cumm_credits + 120
else program_credits
end new_program_credits,
case when cumm_credits > 120
then 120
else cumm_credits
end new_cumm_credits
FROM (SELECT SR_PROGRAM Mstr_Program,
DECODE(SORLCUR_YEAR,1,1,2,2,3,3,4,3,SR_YEAR) year_of_study,
SCT_SUBJ_CODE||SCT_CRSE_NUMB program_module,
COUNT(student_ID) no_of_stud,
row_number() OVER (PARTITION BY sr_program,DECODE(sr_year,1,1,2,2,3,3,4,3,SR_YEAR)
ORDER BY COUNT(student_id) DESC,scbcrse_title) rank,
10 * SCT_CREDIT_HRS program_credits,
10 * SUM(SCT_CREDIT_HRS) OVER (PARTITION BY sr_program,DECODE(sorlcur_year,1,1,2,2,3,3,4,3,SR_YEAR)
ORDER BY count(student_id) desc
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW) cumm_credits
WHERE 0 <= case when cumm_credits > 120
then program_credits - cumm_credits + 120
else program_credits
end
ORDER BY Mstr_Program,YEAR_OF_STUDY,RANKRegards
Etbin
Edited by: Etbin on 16.12.2011 8:50
with
t as /* simulating the result achieved */
(select 'P11877' Mstr_Program,1 Year_of_study, 'BUSI1490' program_module,20 no_of_stud,1 rank,30 program_credits,30 cumm_credits from dual union all
select 'P11877', 1, 'COMP1365', 20, 2, 40, 70 from dual union all
select 'P11877', 1, 'BUSI1375', 20, 3, 30, 100 from dual union all
select 'P11877', 1, 'COMP1363', 20, 4, 40, 140 from dual union all
select 'P11877', 2, 'MARK1174', 8, 1, 30, 30 from dual union all
select 'P11877', 2, 'FINA1068', 8, 2, 50, 80 from dual union all
select 'P11877', 2, 'INDU1062', 8, 3, 30, 110 from dual union all
select 'P11877', 2, 'BUSI1329', 8, 4, 50, 160 from dual union all
select 'P11877', 2, 'MARK1138', 8, 5, 30, 190 from dual
select Mstr_Program,Year_of_study,program_module,no_of_stud,rank,program_credits old_credits,cumm_credits old_cumm,
case when cumm_credits > 120
then program_credits - cumm_credits + 120
else program_credits
end new_program_credits,
case when cumm_credits > 120
then 120
else cumm_credits
end new_cumm_credits
from t
where 0 <= case when cumm_credits > 120
then program_credits - cumm_credits + 120
else program_credits
end -
Please Help with sql.Date problem
I have spent alot of time on what I thought would be an otherwise simple task, and I beleive I am close to completion but I need some much needed help. I have posted various forms of my code to try and acheive the solution but the responses received have been limited.
I am trying to delete a record from a MS Access database where a Date/Time field in the database (Err_Date) equals a date entered by the user via a textbox.
I finally have gotten the correct record to delete from the database, but what is very strange is that Tomcat is throwing a 'java.lang.NullPointerException' error. Then when I re-open the database the correct record is deleted.
Here is my code:
<%@page import="java.sql.*"%>
<%@ page import="java.text.SimpleDateFormat"%>
<%@ page import="java.util.Date"%>
<%
Connection con = null;
try{
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
con = DriverManager.getConnection("jdbc:odbc:errorlog", "admin", "");
catch(Exception e){
out.println(e.getMessage());
ResultSet rs=null;
Statement stmt=null;
try {
stmt=con.createStatement();
String end = request.getParameter("To");//FROM TEXTBOX
java.text.SimpleDateFormat df = new java.text.SimpleDateFormat ("dd/MM/yyyy");
java.util.Date d2 = df.parse(end);//CONVERT STRING TO UTIL DATE
java.sql.Date date2 = new java.sql.Date(d2.getTime());//CONVERT TO SQL
PreparedStatement stmnt = con.prepareStatement("DELETE FROM tblError WHERE Err_Date = ?");
stmnt.setDate(1, date2);
stmnt.executeUpdate();
stmnt.close();
//CLOSE RESULT SET
rs.close();
stmt.close();
con.close();
//CATCH EXCEPTIONS
catch (SQLException e) {
out.println(e.getMessage());
%>well, in case anyone ever runs into a problem this stupid again the solution is as follows.
the code to:
1. retrieve date from text box
2. covert string into util date
3. convert util date into sql date
4. delete from database
is all correct.
the problem is that I previously used String sql="SOME SQL DELETE" and then executed the result set, which of course I then had to close. This wasn't working so I switched to a Prepared Statement. I forgot to remove the 'rs.close()' statement in my code. So Tomcat was trying to close a result set that was never opened... -
Hi,
I'm trying to update a record but I don't know how to update one field in this record. This is my code so far
private void updateProcess() {
int nrows;
String sql = "UPDATE student SET s_first = '" + txtS_first.getText()
+ "', s_mi = '" + txtS_mi.getText()
+ "', s_last = '" + txtS_last.getText()
+ "', s_dob = TO_DATE('" + txtS_dob.getText() + "', 'MM/DD/YYYY')"
/* In a database table, after the s_dob column is f_id column, but a user will see info of this field by f_first and f_last instead of f_id. How can I update this column with f_id if a user's input is f_first and f_last? What if f_first and f_name that a user enters doesn't exist in the database, is there anyway to display an error for this case?
+ "', f_first = '" + txtF_first.getText()
+ "', f_last = '" + txtF_last.getText()
+ "' WHERE s_id = " + txtS_id.getText();
try {
nrows = stmt.executeUpdate(sql);
// I think this part I'm doing wrong because the text area doesn't display these strings
if(nrows > 0) {
lblShowResult.setText("Update successed");
lblShowResult.setVisible(true);
} // end if
else {
lblShowResult.setText("Update failed");
lblShowResult.setVisible(true);
} // end else
rset.close();
} // end try
catch (SQLException e) {}
catch (NullPointerException e){}
} // end updateProcessIf you read the docs for executeUpdate, you'll see that it returns the number of rows affected. So if it returns zero, then no rows matched.
Also, you should be using PreparedStatement rather than Statement. Then you won't have to worry about weird characters in strings or formatting dates (you can just give it a java.sql.Date object). -
Need help with SQL Query with Inline View + Group by
Hello Gurus,
I would really appreciate your time and effort regarding this query. I have the following data set.
Reference_No---Check_Number---Check_Date--------Description-------------------------------Invoice_Number----------Invoice_Type---Paid_Amount-----Vendor_Number
1234567----------11223-------------- 7/5/2008----------paid for cleaning----------------------44345563------------------I-----------------*20.00*-------------19
1234567----------11223--------------7/5/2008-----------Adjustment for bad quality---------44345563------------------A-----------------10.00------------19
7654321----------11223--------------7/5/2008-----------Adjustment from last billing cycle-----23543556-------------------A--------------------50.00--------------19
4653456----------11223--------------7/5/2008-----------paid for cleaning------------------------35654765--------------------I---------------------30.00-------------19
Please Ignore '----', added it for clarity
I am trying to write a query to aggregate paid_amount based on Reference_No, Check_Number, Payment_Date, Invoice_Number, Invoice_Type, Vendor_Number and display description with Invoice_type 'I' when there are multiple records with the same Reference_No, Check_Number, Payment_Date, Invoice_Number, Invoice_Type, Vendor_Number. When there are no multiple records I want to display the respective Description.
The query should return the following data set
Reference_No---Check_Number---Check_Date--------Description-------------------------------Invoice_Number----------Invoice_Type---Paid_Amount-----Vendor_Number
1234567----------11223-------------- 7/5/2008----------paid for cleaning----------------------44345563------------------I-----------------*10.00*------------19
7654321----------11223--------------7/5/2008-----------Adjustment from last billing cycle-----23543556-------------------A--------------------50.00--------------19
4653456----------11223--------------7/5/2008-----------paid for cleaning------------------------35654765-------------------I---------------------30.00--------------19
The following is my query. I am kind of lost.
select B.Description, A.sequence_id,A.check_date, A.check_number, A.invoice_number, A.amount, A.vendor_number
from (
select sequence_id,check_date, check_number, invoice_number, sum(paid_amount) amount, vendor_number
from INVOICE
group by sequence_id,check_date, check_number, invoice_number, vendor_number
) A, INVOICE B
where A.sequence_id = B.sequence_id
Thanks,
NickIt looks like it is a duplicate thread - correct me if i'm wrong in this case ->
Need help with SQL Query with Inline View + Group by
Regards.
Satyaki De. -
I switched over from an iPhone to a Samsung Galaxy S3 & I haven't been able to receive any text messages from iPhones. I have no problem sending the text messages but I'm not receivng any from iPhones at all. It has been about a week now that I'm having this problem. I've already tried fixing it myself and I also went into the sprint store, they tried everything as well. My last option was to contact Apple directly. Please help with turning my iMessage completely off so that I can receive my texts.
If you registered your iPhone with Apple using a support profile, try going to https://supportprofile.apple.com/MySupportProfile.do and unregistering it. Also, try changing the password associated with the Apple ID that you were using for iMessage.
-
How can I sync my iPhone on a different computer without erasing my applications? My iPhone was earlier synced with a PC which I don't use anymore.
On the new computer, I am getting a message that my all purchases would be deleted if I sync it with new iTunes library.
Please help with proper steps, if any.Also see... these 2 Links...
Recovering your iTunes library from your iPod or iOS device
https://discussions.apple.com/docs/DOC-3991
Syncing to a New Computer...
https://discussions.apple.com/docs/DOC-3141 -
Please help with the message I am receving on startup ""You can't open the application NovamediaDiskSupressor because PowerPC applications are no longer supported."
I have read some of the replies in the Apple Support Communities, but as I am no techie, I would have no idea how I would implement that solution.
Please help with what I need to type, how, where, etc.
Many thanks
AppleSueIn HunterCreekI am afraid there is no solution.
PowerPC refers to the processing chip used by Apple before they transferred to Intel chips. They are very different, and applications written only for PPC Macs cannot work on a Mac running Lion.
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Hal -
[ETL]Could you please help with a problem accessing UML stereotype attributes ?
Hi all,
Could you please help with a problem accessing UML stereotype attributes and their values ?
Here is the description :
-I created a UML model with Papyrus tool and I applied MARTE profile to this UML model.
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s.attribute.selectOne(a|a.name="extOpDemand") , where s is a variable of type Stereotype.
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Please help
Thank youHi Dimitris,
Thank you , a minimal example is provided now.
Version of the Epsilon that I am using is : ( Epsilon Core 1.2.0.201408251031 org.eclipse.epsilon.core.feature.feature.group Eclipse.org)
Instructions for reproducing the problem :
1-Run the uml2etl.etl transformation with the supplied launch configuration.
2-Open lqn.model.
There are two folders inside MinimalExample folder, the one which is called MinimalExample has 4 files, model.uml , lqn.model, uml2lqn.etl and MinimalExampleTransformation.launch.
The other folder which is LQN has four files. (.project),LQN.emf,LQN.ecore and untitled.model which is an example model conforming to the LQN metamodel to see how the model looks like.
Thank you
Mana -
Want a complete migration guide to upgrade 11.1.0.7 to 11.2.0.3 database using DBUA..We are implementing R12.1.3 version and then have to migrate the default 11gR1 database to 11.2.0.3 version. Please help with some step by step docs
Upgrade to 11.2.0.3 -- Interoperability Notes Oracle EBS R12 with Oracle Database 11gR2 (11.2.0.3) (Doc ID 1585578.1)
Upgrade to 11.2.0.4 (latest 11gR2 patchset certified with R12) -- Interoperability Notes EBS 12.0 and 12.1 with Database 11gR2 (Doc ID 1058763.1)
Thanks,
Hussein -
I need help with SQL query (if it can be accomplished with query at all).
I'm going to create a table with structure similar to:
Article_Name varchar2(30), Author_Name varchar2(30), Position varchar2(2). Position field is basicly position of an article author in the author list, e.g. if there is one author, his/her position is 0, if 2, then 1st author is 0, second is 1, etc.
Article_Name Author_Name Position
Outer Space Smith 0
Outer Space Blake 1
How can I automate creation of Position, based on number of authors on the fly? Let's say I have original table without Position, but I want to create a new table that will have this information.
RegardsIf you have an existing table whose structure doesn't tell you what position the author is in, what's the algorithm you'd use to determine who was the first author, the second author, etc? If you issue a select query on a table without providing an "order by" clause, Oracle makes no guarantees about the order in which it retrieves rows.
As an aside, why would you store position number in a varchar2 field? If it's a number, it ought to be stored as a number.
Justin -
Welcome.
At the outset, I'm sorry for my English
Please help with configuration Photoshop CS6 appearance.
How to disable the background of the program so you can see the desktop. (same menus and tools)
i wantto be the same effect as CS5.Please try turning off
Window > Application Frame -
hi all,
audit event handler doesn't work. please help
test: SQL>show user
USER is "HR"
test: SQL>--on user hr
drop table aud_emp
creattest: SQL> 2 e table aud_emp (aud_time date)
create or replace procedure p_aud_emp as
begin
insert into aud_emp values (sysdate);
commit;
--do other thing later;
end;
Table dropped.
test: SQL> 2
Table created.
test: SQL> 2 3 4 5 6 7
Procedure created.
test: SQL>
test: SQL>show user
USER is "SYS"
test: SQL>--on user sys
begin
dbms_fga.drop_politest: SQL> 2 cy (
object_schema => 'hr',
object_name => 'employees',
policy_name => 'audit_emps_salary');
end;
/ 3 4 5 6 7
PL/SQL procedure successfully completed.
test: SQL>begin
dbms_fga.add_policy (
object_sche 2 3 ma => 'hr',
object_name => 'employees',
policy_name => 'audit_emps_salary',
audit_condition=> 'department_id=10',
audit_column => 'SALARY',
handler_schema => 'hr',
handler_module => 'p_aud_emp',
enable => TRUE,
statement_types=> 'select' );
end;
/ 4 5 6 7 8 9 10 11 12 13
PL/SQL procedure successfully completed.
test: SQL>
test: SQL>-- on user hr
select first_name,salary
test: SQL> 2 from employees
where department_id=10; 3
FIRST_NAME SALARY
Jennifer 4400
--it should call hr.p_aud_emp,but it didn't.
test: SQL>
test: SQL>select * from aud_emp;
no rows selected --it should insert one row here
test: SQL>
-- on user sys
col object_schema forma a10
col object_name form a15
col policy_name form a20
col sql_text form a40
set lines 120
select OBJECT_SCHEMA, OBJECT_NAME, POLICY_NAME,SQL_TEXT
from DBA_FGA_AUDIT_TRAIL
OBJECT_SCH OBJECT_NAME POLICY_NAME SQL_TEXT
HR EMPLOYEES AUDIT_EMPS_SALARY select * from employees
HR EMPLOYEES AUDIT_EMPS_SALARY select *
FROM employees
WHERE
department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
OBJECT_SCH OBJECT_NAME POLICY_NAME SQL_TEXT
from employees
where department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
OBJECT_SCH OBJECT_NAME POLICY_NAME SQL_TEXT
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id = 10
OBJECT_SCH OBJECT_NAME POLICY_NAME SQL_TEXT
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id=10
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id=10
OBJECT_SCH OBJECT_NAME POLICY_NAME SQL_TEXT
HR EMPLOYEES AUDIT_EMPS_SALARY select first_name,salary
from employees
where department_id=10
13 rows selected.Any ideas will be greatly appreciated.
Help to find out what issues in it please. -
cont contact apple server error please help with ipad touch 4. im just fed up with apple please help me because why is it only apple with these kind of problems?
If you mean updae server
Update Server
Try:
- Powering off and then back on your router.
- iTunes for Windows: iTunes cannot contact the iPhone, iPad, or iPod software update server
- Change the DNS to either Google's or Open DNS servers
Public DNS — Google Developers
OpenDNS IP Addresses
- For one user uninstalling/reinstalling iTunes resolved the problem
- Try on another computer/network
- Wait if it is an Apple problem
Otherwise what server are you talking about
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