[sqlite] Select Multiple rows in one row

2011-10-15 Thread Madhan Kumar
Hi.

I have two Tables with the follwing structure

*EmpTable*

Empid* * Empname

1* Raja *

2Kumar

*DeptTable*

DeptidDeptnameEmpid

101   * xxx* 1

102 *yyy*1

103*zzz*1

104bbb2

105ccc2

i need a Sqlite query to display the data in one row (concatenate the
deptdetail rows in one row instead of 3 rows)

EmpidEmpname DeptDetail

1Raja   * xx - yy-zz*

2 Kumar bbb-ccc

Thanks
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Re: [sqlite] Foreign key mismatch Error

2011-10-01 Thread Madhan Kumar
Thank you all for your Reply..
I figured out the problem.. I added constraint for the Primary Key in
Employee Table,
then it got solved.
I have missed to add constraint,, and it was the issue.



On Wed, Sep 28, 2011 at 1:41 AM, Kees Nuyt k.n...@zonnet.nl wrote:

 On Tue, 27 Sep 2011 14:58:06 +0400, Madhan Kumar
 askmad...@gmail.com wrote:

 Hello..
   In sqlite (version 3.7.7.1),  I created two tables with foreign keys
 as shown below
 
 CREATE TABLE [*Employee*] (
   [*EmpId*] INT NOT NULL,
   [EmpName] VARCHAR2(50));
 
 CREATE TABLE [*Department*] (
   [DeptID] INTEGER NOT NULL,
   [DeptName] VARCHAR2(20),
   [*EmpID*] INTEGER NOT NULL CONSTRAINT [FK_EMP_Dept] REFERENCES
 [Employee]([*EmpId*]));
 
 Using sqlite Expert Tool,
 I inserted a row in *Employee* Table - Success
 when i want to delete the same row from Employee table - gives error
 foreign key mismatch.
 
 When i try to insert a row in *Department* Table, gives error foreign key
 mismatch.
 
 I tried executing PRAGMA foreign_keys = ON
 and it returns 1
 
 But still i am getting errors. Pls assist me to fix this issue.
 Thanks in advance.

 I think you have the reference the wrong way around.
 Employee should reference Department, the relation is n:1.

 The way you have it now, Department references employee, which
 means a department can only have one employee.
 --
  (  Kees Nuyt
  )
 c[_]
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[sqlite] Storing and Retreiving Image in Blob

2011-10-01 Thread Madhan Kumar
Hello,
Can you send me the code(C#-windows) for storing and retreiving an
Jpg image
in sqlite (blob). My retreive code works fine in oracle database, but not in
sqlite db.
It gives an error as shown below.
Thanks

byte[] byteData = new byte[0];

byteData = (byte[])(dsISO.Tables[0].Rows[0][ownerlogo]);

MemoryStream ms = new MemoryStream(byteData);

*System.Drawing.**Image img = System.Drawing.Image**.FromStream(ms); --
Error (Parameter is not valid)*

pictureBox1.Image = img;



Thanks
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[sqlite] Foreign key mismatch Error

2011-09-27 Thread Madhan Kumar
Hello..
  In sqlite (version 3.7.7.1),  I created two tables with foreign keys
as shown below

CREATE TABLE [*Employee*] (
  [*EmpId*] INT NOT NULL,
  [EmpName] VARCHAR2(50));

CREATE TABLE [*Department*] (
  [DeptID] INTEGER NOT NULL,
  [DeptName] VARCHAR2(20),
  [*EmpID*] INTEGER NOT NULL CONSTRAINT [FK_EMP_Dept] REFERENCES
[Employee]([*EmpId*]));

Using sqlite Expert Tool,
I inserted a row in *Employee* Table - Success
when i want to delete the same row from Employee table - gives error
foreign key mismatch.

When i try to insert a row in *Department* Table, gives error foreign key
mismatch.

I tried executing PRAGMA foreign_keys = ON
and it returns 1

But still i am getting errors. Pls assist me to fix this issue.
Thanks in advance.
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[sqlite] Tool for database designer

2011-09-18 Thread Madhan Kumar
Hi,
   I want to design the table structure and create scripts with a
database designer
Do we have any tool(Free or cost) for Sqlite to design the tables, similar
like powerdesigner.

Thanks
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[sqlite] how to Add a Table in the existing Sqlite database at client machine

2011-08-22 Thread Madhan Kumar
 I,
I am using C# windows application(.Net2010) with sqlite,

Can you pls let me know, how to add or modify a new column/ table in
the existing Sqlite database that is in my client desktop machine.
I want the existing database to have its data(not disturbed), and only add a
new table/column.

Is there any way something like bat file - to execute and update the
database file in client machine.
or any other way to execute the scripts( like oracle updation of script)

Waiting for your reply.
Thanks
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