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SQL-Server assumed that you wanted an integer result because both of the operands were integers.
Try: select convert(float, 5) / 7
Regards
Andy
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hi there,
i have 2 table, first have 2 columns(ID, Name) here ID is primary key
second have 9 columns (ID, 1, 2, 3, ... 8) here ID is primary key too
in second table column names from 1 to 8 have ID Numbers from Table First(which is primary)
and i want to make them foreign keys (from 1 to 8) so that if i delete ID from first table then the action that is set to "Set Null" will set that cell to null
for example
first table have data like this
[ID] [Name]
15 ABC
16 ERT
17 GHJ
18 LKI
in second table :
[ID]_[1]__[2]__[3]__[4]__[5]__[6]__[7]__[8]
14___16___18___17___15___17___17___15___15
15___18___18___17___16___18___18___17___15
16___15___18___16___15___17___17___16___15
now what i want, if i delete ID 16 from first table then the value 16 in table second shoul be set to "null" (from 1 to 8) so it will look like this:
[ID]_[1]__[2]__[3]__[4]__[5]__[6]__[7]__[8]
14________18___17___15___17___17___15___15
15___18___18___17________18___18___17___15
16___15___18________15___17___17________15
to do that i make 8 relationships, and set all actions as
update = cascade
delete = set null
but when i save it, it give error
'firsttable' table saved successfully
'secondtable' table
- Unable to create relationship 'FK_secondtable_II_firsttable'.
Introducing FOREIGN KEY constraint 'FK_secondtable_II_firsttable' on
table 'secondtable' may cause cycles or multiple cascade paths.
Specify ON DELETE NO ACTION or ON UPDATE NO ACTION,
or modify other FOREIGN KEY constraints.
Could not create constraint. See previous errors.
i want both actions, but sql is not allowing me to do that
it can be done by this, but i dont want to use this method
update secondtable set [1] = NULL where [1] =
update secondtable set [2] = NULL where [2] =
update secondtable set [3] = NULL where [3] =
update secondtable set [4] = NULL where [4] =
update secondtable set [5] = NULL where [5] =
update secondtable set [6] = NULL where [6] =
update secondtable set [7] = NULL where [7] =
update secondtable set [8] = NULL where [8] =
some have any solution?
thanks
-- modified at 7:26 Thursday 22nd November, 2007
Becoming Programmer...
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Hi,
I am having a problem.Actually what i want is to find the Dates between particluar Dates like how many dates between two dates.For this i dont have any table.Then after i want to store this resultset in the Temporary Table.
i have done lots of RNd but didn't get the ans.
Thanks in Advance
Avesh
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hi
you have to give the values for from date and todate
while @fromdate<=@todate
begin
insert into #Temp(fdate) values(@fromdate)
set @fromdate=dateadd(day,1,@fromdate)
end
Regards
Joe
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Hi all ,
What's the most secure way for executing dynamic sql from a .Net App in your opinion?
Thanks in advance ,
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A few quick tips:
* Use parameters as much as possible.
* Validate EVERYTHING.
* If you are needing to dynamically set the name of tables or columns then have your SQL check the existance of the table first (A lookup on INFORMATION_SCHEMA.TABLES and INFORMATION_SCHEMA.COLUMNS will help here - remember to use parameters to pass the table name)
* Validate EVERYTHING.
* Run the code in the most restrictive account possible.
* Validate EVERYTHING.* Call stored procedures and have the SP validate the parameters and generate the dynamic SQL.
* Validate EVERYTHING.
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Hi,
I am in the process of transferring the data from MSSQl database to MYSQL  database.
I went through a code snippet which as in vb, in transferring the data (I mean content of tables).
I got this info from SQL DTS.com (Bulk Export Task) can any one here who did this sort of job earlier using C#?
I downloaded the required dll but wanna to have a code snippet in C#.
If any one knows please help me.
Thank you in advance
Raghavendran.![Rose | [Rose]](https://www.codeproject.com/script/Forums/Images/rose.gif)
Raghavendran
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recently i appeared for an exam... below question was asked:
You work as a database administrator.
You need to install a new SQL Server 2005 instance on a newly installed Windows
Server 20003 server named Server2. This new instance must have the same settings as the existing SQL Server 2005 instance on a server named Server1.
The only two services that need to be installed are the SQL Server service and the
SQL Server agent service.
The default installation folder should be used for the new SLQ Server instance on Server2. You will be able to refer to Server1 to view the settings to use.
You need to complete the installation wizard on Server2.
What operations do i need to perform....
(i dnt hv much experience on sql i am a beginner.)
Sailaja
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potlakayala wrote: What operations do i need to perform....
(i dnt hv much experience on sql i am a beginner.)
Then why were you sitting an exam in that area?
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can any body helps me to know the error meaning of address524F4241
thanks
mahen
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Can you be more specific on what you are trying to do and when is that error popping up?
Once you have mastered the ability to turn yourself invisible at will, and to deflect bullets with your hair, you will be ready to come back here to the lounge and post programming questions.Only at this point will you be able to dodge the fireballs that are going to come your way. - Pete O'Hanlon
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am using DELPHI WITH oracle back end..
when i open one form.. and trying to open another form with out closing the previous one.. this error pops up..
...
will tell u in brief..
i asigned F3.. to pop up.. company selection screen..
say i had opened one company.(HR)SCREEN. and AND WITHOUT closing the main form am pressing F3 and the company selection pop screen comes up. and selecting one more company.. and that time this error pops up..
but i had writen the code.. as close previous company screen and open new..
but not closing the main menu..screen..
hope u got some idea
thanks
mahen
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How to display starting character only capital.
21 Nov, 2007
Author: Thirumurugan.D
hi friends,
am using one table,there is 3 field(name,address,father name) is having.but inserted totally 5 records.In all column data first character small letter.
example :(Database)
Name Address Father Name
raja salem rajasekar
laxman chennai anbuselvan
bala bangalore muthu
senthil covai durai
arun hosur ganesh
Note :
Am using front end repeater control.I want display all column data starting letter in capital letter.help me very urgent
I want display the front end form is example :
(FRONT END):
=============
Name Address Father Name
Raja Salem Rajasekar
Laxman Chennai Anbuselvan
Bala Bangalore Muthu
Senthil Covai Durai
Arun Hosur Ganesh
with Regards,
D.Thirumurugan.
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First of all, don't cross post.
Secondly, you asked the same question a few days ago and were given some advice. Why are you asking the same question again?
Paul Marfleet
"No, his mind is not for rent
To any God or government"
Tom Sawyer - Rush
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pmarfleet wrote: Why are you asking the same question again?
He probably figures he might get a better answer.
"Any sort of work in VB6 is bound to provide several WTF moments." - Christian Graus
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Hi,
I need to add indexes to some tables id like to understand when the indexes will actually be used...
lets say my table has four fields - field1, field2, field3, field4
if i add the following index (field1, field2, field3)
would the following where clauses use this index?
where field1 = a
where field3 = a
where field1 = a and field2 = b
where field2 = a and field3 = b
where field1 = a and field3 = b
where field1 = a and field4 = b
where field4 = a and field1 = b
then if i add a seperate index (field4)
would the following where clauses use one, both or non of these indexes?
where field1 = a and field4 = b
where field4 = a and field1 = b
where field3 = a and field4 = b
Thanks in advance...
Chas
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The best way to know is to try it, make the tables, fill them with data, execute queries showing the execution plan. In the execution plan, SQL Server will tell you what indexes were used.
In general, If you have composite keys,indexes the 1st column in the index must be referenced in the query (specifically in the where or join) for sql server to consider using this index.
about you samples:
based on the above mentioned information and some experience I have with this, these can be the expected behavior of SQL Server:
where field1 = a (Index Will be used)
where field3 = a (Index Will not be used)
where field1 = a and field2 = b (Index Will be used)
where field2 = a and field3 = b (Index Will not be used)
where field1 = a and field3 = b (Index Will be used)
where field1 = a and field4 = b (Index Will be used)
where field4 = a and field1 = b (Index Will be used, sql server is smart enough  )
After adding index on Field4:
where field1 = a and field4 = b (one of the two indexes will be used, not both)
where field4 = a and field1 = b (one of the two indexes will be used, not both)
where field3 = a and field4 = b (index on field4 will be used)
note that whether SQL Server will use the index or not depends on many factors, for example statistics and granularity on index data.
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Hi,
I have one method in the Data Access Layer like the below:
LoadPersonsData()
{
IDataReader reader= db.ExecuteReader("Procedure name");
Now here I need to call another private metho which will load part of data.
PersonData d = new PersonData();
While(reader.read())
{
D.name =reader["fname"];
…
D.Subdata = LoadSubdata(d, reader);
D.DOB = reader["dob"];
}
D.Subdata = LoadSubdata(d, reader); -- This line is also not getting the result
D.DOB = reader["dob"]; -> The problem here is after loadSubData is called next I am trying to get the next field from reader, Here I am getting
No data exist for the row or column.
How to pass the datareader to LoadSubdata method. I just created the sub method to reduce the complexity complained by the DevPartner tool.
Thanks
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The DataReader uses the connection exclusively and this may be your problem.
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In Reader.read() u r selecting a specific row and then u r sending whole reader it wont work, I think u should do it same function instead of calling another one...
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Prateek G wrote: then u r sending whole reader it wont work
Why shouldn't it work?
Prateek G wrote: I think u should do it same function instead of calling another one...
Uugh! That way misery lies.
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* Developer Day Scotland
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In case I am reading Nth row reader must be having all the rows, How he will be able to select that particular row at that time.....
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Prateek G wrote: In case I am reading Nth row reader must be having all the rows
The reader disgorges one row at a time. If you pass a reader to a method it will be on what ever row that it was at when it was passed. The reader doesn't reset when it is passed around.
Prateek G wrote: How he will be able to select that particular row at that time.....
He most likely doesn't need to. He will be on the row he wants to read.
You are making an awful lot of assumptions about what the OP is doing. The code he supplied is not valid and his description has many holes.
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Well, there may be something that is obviously wrong if you posted the ACTUAL code. The code you have posted contains several inconsistencies. You create a variable d and then appear to refer to it as D later on - these are separate variables and the code will not compile.
Also, the problem is in LoadSubData, but you have not shown us what LoadSubData does.
Please post the ACTUAL code if you want a chance to get a reasonable answer rather than blind guesses.
Upcoming FREE developer events:
* Developer! Developer! Developer! 6
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Can u paste the code of LoadSubdata(d, reader) function..
Are u using While(Reader.read()) method inside that function..
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