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i have a column with dataTime, if i want to select all the rows that doesn't have values typed inside that column how can i do?
i've tried with this but they are not datas compatible:
query = "select * from myTable where Date = 'null'"
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query = "select * from myTable where Date is null"
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I used the DTS wizard to create a DTS package transforming data from a text file into a Sql table. I have a client trying to run the package that does not have access rights to where the data source is located. The package does not give me any indication of an error, just doesn’t do the transformation. How do I handle errors in packages?
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I have a stored procedure. in which i have both insert-select-insert command. Now the problem is that when i do the insert in table1 i want to capture a particular value from table1 so that i can use it to insert it into different table2. something like this
insert into table1 values(somevalue)
select somevalue from table1
insert into table2 value(?)
how can i fetch the value into a variable that can be used into second insert statement.
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Hi,
there is also another way
insert into table2 (anothervalue) select anothervalue from table1
hope this will help
MarekK
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i did the folowing query:
DateTime dtTime = DateTime.Now;
query = "SELECT * FROM myTable WHERE Data >= " + dtTime + " AND Date <= ' + dtTime2 + " OR Date = 'null'";
i need to get all the rows that has null value in the Date (dateTime) column or which time is between dtTime and dtTime2.
that query is not corrected, have i to use '', or # before and after dtTime and dtTime2?
What about?
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Assuming that dtTime is properly converting to a value within the query that mySQL understands ( that is, that the default toString() does what you need ), and assuming that 'Data >=' is a typo above, and Date is being checked in both instances, this will only return rows where the Date column is equal to or greater than the moment when you make the query. If dtTime2 also = DateTime.Now, the odds of a match drop sharply.
Assuming this is dummy code to show the basic approach, I'd suggest you need to open a table in mySQL and see how it stores the dates, then format your datetime to be the same. It's probably YYYYMMDD:HHMMSSSS, assuming that time is also stored. The DateTime class has a property to return a string in this format, but it's name escapes me right now.
Christian Graus - Microsoft MVP - C++
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so simply i've just to do this?
date >= dtTime.ToString()
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my date type is a generic date type composted by:
30/11/2005 12.04.03
day/month/year hours/minutes/seconds.
i've tried to looking something insite DateTime struct, but nothing about this type.
anyway it is compoused by:
myOra.ToLongTimeString() + myOra.ToShortDateString()
how can i do?
Please help me, tnx.
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i've tried also with this but nothing:
Data >= " + myOra.ToLocalTime().AddHours(myOra.Hour)
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Try using parametized queries. That will make you not have to deal with date formats, and also prevent SQL injection attacks.
This is an example the the OLE DB .NET provider. You'll have to search for mySQL, but definitely possible:
string sql = "SELECT * FROM Table WHERE ID = ?";
OleDbCommand cmd = new OleDbCommand(sql, conn);
cmd.Parameters.Add("ID", id);
using(OleDbDataReader rdr = cmd.ExecuteReader()) ..............With OleDbCommand, you must supply all parameters in the order they appear in the query. In SqlCommand (for SQL Server) parameteres are named and you can supply them in any order. Check your docs for the mySQL data provider.
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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And only if you knew that I was going to post a link to your article, but I was too lazy to go find its URL.... 
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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i need to delete a row by checking the ID (auto number primary key) using the following code;
query = "DELETE * FROM myTable WHERE ID = '" + id + "'";
i get an exception: data types not corresponded.
I guess it depend by the id data type, i've tried to declare it as int, uint, long, ulong but i get always the same exception.
Please help me, tnx.
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simply id is a long numner so it donesn't need about ' '. so:
ID = id; is correct
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Again, I'll recommend parametizes queries for many reasons. See my reply to your thread above.
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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Try out these one i think it will work for u
query = "DELETE * FROM myTable WHERE ID = " + id ;
if not contact me (ravikim2001@yahoo.co.in)
ok bye.
Happy coding
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how can i insert the picture to the sqldatabase ?what datatype cani use ?
how can i load the picture to the database?can you give me the code with c#.net to insert picture from the webform.asp to the sqldatabase?
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My boss would like make peer evaluations done on an electronic basis, he needs each employee to fill out a form like:
-your name "tom"- -person being evaluated's name "bob"-
q1 - response
q2 - response
ect...
The admin should then be able to do a search for "bob" and then a summary report will be made with the questsions asked and every ones responses about "bob"
q1 - "bill's response"
- "tom's response"
but none of the submitted reports should be accesible to other users besides the admin. So how can one submit something then not have access to it? i know its a simple problem but.... gah..
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