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-----------------------------------DATABASE-------------------------------------------------------------
CREATE TABLE ACCOUNTS(ACCNO INT PRIMARY KEY,BAL PRIMARY KEY);
insert into accounts values(77,10000);
insert into accounts values(88,10000);
---------------------------------HERE IS JDBC CODE----------------------------------------------------
import A.JDBCUtil; // ****JDBCUtil is the class having connection code
import java.sql.*;
public class Test12 {
public static void main(String[] args) {
Account acc=new Account();
acc.transfer(77,88,5000); //******LINE 8******
}
}
class InvalidAccountNumberException extends Exception{
int accno;
public InvalidAccountNumberException() {
}
public InvalidAccountNumberException(int accno){
this.accno=accno;
}
<a href="https://www.codeproject.com/Members/OverRide">@Override</a>
public String toString() {
return "Accno"+accno+"not found";
}
}
class InsufficientFundsException extends Exception{
public InsufficientFundsException() {
}
<a href="https://www.codeproject.com/Members/OverRide">@Override</a>
public String toString() {
return "sufficent funds are not available";
}
}
class Account{
int bal;
int sab,dab,danb,sanb;
public void transfer(int sa,int da,int amt){
Connection con=null;
PreparedStatement ps1=null;
PreparedStatement ps2=null;
try{
con=JDBCUtil.getOracleConnection();
con.setAutoCommit(false);
ps1=con.prepareStatement("select bal from accounts where accno='?'");
ps1.setInt(1,da); //**************//LINE 12******************//
ResultSet rs1=ps1.executeQuery();
if(rs1.next())
dab=rs1.getInt(1);
else
throw new InvalidAccountNumberException(da);
danb=dab+amt;
//updating destination account balance
ps2=con.prepareStatement("update accounts set bal='?' where accno='?' ");
ps2.setInt(1,danb);
ps2.setInt(2,da);
ps2.executeUpdate();
System.out.println("**"+da+"*updated*");
//checking source account
ps1.setInt(1,sa);
rs1=ps1.executeQuery();
if(rs1.next()){
sanb=rs1.getInt(1);
}else{
throw new InvalidAccountNumberException();
}
if(sab>=amt){
sanb=sab-amt;
}else{
throw new InsufficientFundsException();
}
//updating Source account
ps2.setInt(1,sanb);
ps2.setInt(2,sa);
ps2.executeUpdate();
con.commit();
System.out.println("**"+sa+"updated");
System.out.println("funds transferred");
}catch(Exception e){
e.printStackTrace();
try{
con.rollback();
}catch(Exception e1){
}
}finally{
JDBCUtil.cleanup(ps1, con);
JDBCUtil.cleanup(ps2, con);
}
}//transfer
}//account
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I cannot see anything wrong with your parameter indices, unless something else is corrupting those values. You need to use your debugger to step through the code and see exactly what is happening.
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I am looking to create a tool for my office to simplify the storing of certain logs. Right now it is done via excel and during weekly calls the staff needs to organize this and distribute to recipients, update daily, etc.
I am thinking (thinking) if I went to a Database application I could write a better means to store the information and more importantly add some code to have a button (for example) to email all of the reports to anyone in the database flagged as a recipient.
This is just one small first step of functionality as I aim to overtime add more and more slightly to it.
I am thinking that I could put a template of the database in each project folder and have people just manage it that way so I dont have to worry about too many concurrent users. It also simplifies the location of the storage vs a central place everyone gets to it (which means they forget since they are in the project folders all the time).
Alternative, is I just start the endeavor of writing a true .net application on top of the database. Although I am thinking this is more future proof as I honestly dont know where this would feature wise I am thinking it would be way more complex and lengthy on development time.
So how do you weigh where to build the application? I can probably knock out basic functionality in access relatively quickly, but am I limiting myself?
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If you NEVER expect to consolidate the data then Access on each client is a viable option.
However I would start with SQL Server express and a Winforms/WPF client application.
Access will give you a quick and dirty solution with a minimal learning curve. You will run into limitations fairly quickly, especially when you decide you need to consolidate the data for whole of company reporting.
SQL/Client will have quite a steep learning curve, however it is a professional environment and you can plug in a professional developer when you reach you limitations.
This is an ideal project for a junior developer just starting out, they get to learn the skills of analyst and application design and you get to manage and learn the development skills.
Never underestimate the power of human stupidity
RAH
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Thanks for the response. The combination of data is not a big deal as I could always recreate a unified solution later. It never would really hurt me. I am just torn on how useful a standalone DB will be. If not useful, it won't get buy in.
I am sure this may not be well received in these forums but I have been researching Mendix a lot. Model based development takes the technicalities out of it. Any thoughts on that? Seems like it could be a good route to go.
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Sorry I know nothing about Mendix but it looks like a web development suite. I would look into how mature it is and peruse their support forum to see how responsive they are to problems.
[edit]
As a caveat to using custom IDEs look at this question then look a the last release date for an update of the product he is using.
How to set up QuickSharp to run program in separate window? - C# Discussion Boards
Never underestimate the power of human stupidity
RAH
modified 12-Mar-17 20:39pm.
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Hi All,
I want some help in getting all the steps which are either disabled or failed along with their job information of SQL Server, any help is going to be very helpful.
Thanks in advance.
Thanks,
Abdul Aleem
"There is already enough hatred in the world lets spread love, compassion and affection."
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indian143 wrote: getting all the steps which are either disabled or failed along with their job information of SQL Server,
Get how? You can go look at them through the UI. Do you want sql to query for them? C# to run a report? Not sure what you want.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi,
I need to get all the Packages that are run either by using Job or without using the Jobs, I need the statuses of those Packages, whether they are failed or success.
This is because I have a console application that's executing all the Packages one after the other, but if the Packages failed internally we are not informed of that, so I want to go ahead and check status of the Package after execution using query and find out what has happened.
Any help would be greatly helpful. Thanks in advance. I want to get all the packages that are executed either by Job or without using the Job on a database.
Thanks,
Abdul Aleem
"There is already enough hatred in the world lets spread love, compassion and affection."
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create or replace procedure updateStudentResult(id int,
m1 in int,
m2 in int,
m3 in int,
tot out int,
avg out float,
grd out char)
as
begin
select marks1,marks2,marks3 into m1,m2,m3 from students where sid=id;
tot:=m1+m2+m3;
avg:=(m1+m2+m3)/3;
if avg >= 85 then
grd:='A';
elsif (avg >= 65) then
grd:='B';
elsif (avg >= 50) then
grd:='C';
else
grd:='D';
end if;
UPDATE students SET
total=tot,
average=avg,
grade=grd
where sid=id;
end;
/
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Do you have a question or are you just trying to showcase your code?
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Fix the compilation error that it tells you about.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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It looks like you downvoted my post and that's fine; however, the reason I said to fix the compilation error is because you haven't even shared with us what the exact error is, so how can we possibly help you fix it?
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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u can tell me to mention,not suppose to give slogans
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3 people tried to nudge you in the right direction and you downvoted all of them. You still haven't given us the exact error.
We're all volunteers and we're being very polite in trying to help you. If you called up tech support and said "I'm getting an error on my computer." of course the first question will be, "What is the error?"
Same thing in an online forum. If you ask us how to fix an error, then tell us the error. There are 42,654,344 possible errors so we can't possibly guess which one you are getting. Plus, the error probably tells you exactly what is wrong and if you would just read it, you probably wouldn't even need our help.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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ohk cool bro
am new here ,In a hurry i forget it happens sometime
sorry
next tym i will keep this in mind
thanks for going through my code
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issue is solved now thankss i will keep ur suggestions in my mind, but you should tell in descent way
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LOKENDRA YADAV wrote: issue is solved now
Good. Glad to hear it.
LOKENDRA YADAV wrote: , but you should tell in descent way
I think all 3 of us were very polite. Sorry if you felt different.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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Hi,I want to make demo on SQL server,but I want to ask one question while making demo I have to mention only theory concept or code in them also???Can any one help???
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You'll have to do some code unless you want to only demo features that don't require any code.
There are two kinds of people in the world: those who can extrapolate from incomplete data.
There are only 10 types of people in the world, those who understand binary and those who don't.
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SQL Server 2016 LocalDB installed, and instance 'FFw1a' is created and running:
C:\Program Files\Microsoft SQL Server\130\Tools\Binn>sqllocaldb i Ffw1a
Name: FFw1a
Version: 13.0.2151.0
Share name:
Owner: MinKyung\icey.dong
Auto Create: No
Status: Running
Start Time: 2017/3/3 16:48:38
Pipe name: np:\\.\pipe\LOCALDB#E10BE0E6\tsql\query
I want to create a local db file by below C# code:
private void CreateDatabase()
{
System.Data.SqlClient.SqlConnection tmpConn;
string sqlCreateDBQuery;
tmpConn = new SqlConnection();
tmpConn.ConnectionString = @"Data Source=(LocalDB)\FFw1a;AttachDbFilename='D:\y\2\TestDB_Data.mdf'; Integrated Security=True;Connect Timeout=30;Encrypt=False";
sqlCreateDBQuery = "CREATE DATABASE TestDB ON PRIMARY "+
@"(NAME = TestDB_Data, FILENAME = 'D:\y\2\TestDB_Data.mdf', SIZE = 2MB, FILEGROWTH = 10%) "+
@"LOG ON (NAME = TestDB_Log, FILENAME = 'D:\y\2\TestDB_Log.ldf', SIZE = 1MB, FILEGROWTH = 10%)";
SqlCommand myCommand = new SqlCommand(sqlCreateDBQuery, tmpConn);
try
{
tmpConn.Open();
myCommand.ExecuteNonQuery();
MessageBox.Show("Database has been created successfully!", "Create Database", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
catch (System.Exception ex)
{
MessageBox.Show(ex.ToString(), "Create Database", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
finally
{
tmpConn.Close();
}
return;
}
But it cause exception on 'tmpConn.Open()', and the message is:
An attempt to attach an auto-named database for file D:\y\2\TestDB_Data.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
How can I change the connection string and sqlCreateDBQuery to create a database file successfully?
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Change the file names in the CREATE DATABASE statement so they use different file names to the one in your original connection string. You use AttachDbFilename='D:\y\2\TestDB_Data.mdf' in the connection string, then try to create a database file of the same name.
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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Tried, but also failed.
The exception is caused on 'tmpConn.Open()', not create databse anymore.
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