I'm trying to compare a string from a label to a varchar(50) in my database. String Occasion = '1 2010-07-07 10:00' compared to varchar(50) OccasionID = '1 2010-07-07 10:00'
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I've checked that the values really are identical in the debug. I was under the impression that no conversion is neccessary between string and varchar, but maybe I'm wrong.
Select number,empname,empfathername from emp
where number column is float data type
I need first four dights of number where it consists 10 digits.
num is 1234567890
O/P like to be
1234
I have heard that even though the maximum varchar size is 8000, that we should not go higher than 7500 for the size value. What is the logic behind this advice?
View 1 RepliesI have two database.one is "TEMS1" and another one is "TEMSLIVE"
"TEMS1" is my local database.
"TEMSLIVE" is client database.
my application is working fine while connecting to my local database. when connecting to client database("TEMSLIVE") it's shows "Msg 457, Level 16, State 1, Procedure GET_MY_TRAVEL_PENDING_ACTIONS, Line 53 Implicit conversion of varchar value to varchar cannot be performed because the collation of the value is unresolved due to a collation conflict." this error. i have compared "TEMS1" and "TEMSLIVE" stored procedure(GET_MY_TRAVEL_PENDING_ACTIONS),but both are identical only.
I have a program that is using credit card info and the expiration date is selected by the user clicking a dropdownlist for the month and a dropdownlist for the year. I want to show a label message if the user tries to proceed while the month and year are evaluated as being earlier that the current month/year.
View 4 RepliesI have a database call that is comparing UserID column of two tables. The UserID is a uniqueidentifier. The page errors on the r.read() line with Conversion failed when converting from a character string to uniqueidentifier. I'm not sure how to code this to avoid the error.
cmd.CommandText = "SELECT a.CenterName FROM Centers a INNER JOIN UserInfo u ON a.CenterID = u.CenterID WHERE u.UserID='{ + SessionManager.UserID + }'";
r = cmd.ExecuteReader();
r.Read();
how can set length of varchar more then 8000?
View 3 RepliesI know that varchar(n) in sql server specifies that a variable character of n bytes can be stored But what value of "n" should I choose if I have to store a string of say 100 character in that field. I am not able to decide the size of varchar when creating a table in database when I have to store a string of say 50 characters or string or 100 or say 1000 characters.
View 8 RepliesI am using sql server 2008. Could anyone tell me the differance between varchar(25) and nvarchar(25)? Which is more efficient?
View 3 RepliesI'm trying to create a stored procedure that get a Key and Name (both varchar), the procedure will check if a the key allready exists in the table, if it exists it will update the name, if its not exists it will add it to the table..
View 2 RepliesIn SQL ......
"reading_i" is smallmoney
"reading_f" is smallmoney
CAST(ABS((reading_i - reading_f)) AS VARCHAR)
I want four decimal places alwaysfor example
reading_i = 3.123
reading_f = 1.23
I want 1.8930 (always four decimal places)
I have a doubt in regards to use varchar or nvarchar for portuguese content, so the question is:varchar support all portuguese chars? or must I use nvarchar (unicode)
View 2 Repliesi have a column in my table of type varchar (50)
beek1
beek10
beek3
beek6
beek61
beek2
i want to sort in my sql querry like this
beek1
beek2
beek3
beek6
beek10
beek61
how to write Sql querry to sort a column of type varchar (50) that contains number
a1
a2
a3
a11
a21
instead of
a1
a11
a2
a21
a3
I need to check the datetime field in my DB to see if the time that's current set is 12hr's past?What's the command to use? Can I just DATEDIFF?
View 4 RepliesI have a large database of user profile data. I need to be able to compare 1 row against all of the other rows, for all columns to find the best match.There are around 30 columns of data for each row. I need to be able to find the 5 best matching rows.
I.E.
Row 1 matches on 2 column's
Row 2 matches on 12 column's
Row 3 matches on 7 column's
Row 4 matches on 4 column's
Row 5 matches on 9 column's
Row 6 matches on 23 column's
Row 7 matches on 29 column's
In the end it will show me the data for rows 7, 6, 2, 5, 3 Now to make it even harder, Some of the columns are bit, some are varchar.Some of them may be a direct match, some will need to search if the column for row2 contains the text of row 1.
Im trying to use the following SQL statement to find every row in Orderable Test List where there is not a row in Results Individual Tests that has a matching entry in the TESTHISCD column. When I run the page everything freezes up.
"SELECT [Orderable Test List].*, [Results Individual Tests].TESTHISCD FROM [Orderable Test List], [Results Individual Tests] WHERE [Orderable Test List].TESTHISCD <> [Results Individual Tests].TESTHISCD"
I am trying to compare a login textbox password and username with a custom validator using linq to get information from the database it always returns false though on the validator where my code below is going wrong.
protected void LoginValidate(object source, ServerValidateEventArgs args)
{
TiamoDataContext context = new TiamoDataContext();
var UsernameCheck = from User in context.Users
where User.Username == TextBoxLoginUsername.Text && User.Password ==
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I dont know where I am going wrong I know its most probably some sort of silly mistake and me being inexperienced at this...
I have string which came from the database,now i want to compare each charater of the string with the radiobuttonlist value and check box list value and select both radiobutton list and checkboxlist.
Here i write down some code but its just select 2 item of the each radiobuttonlist and checked all checkboxlist.
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Below one is model table, am getting strange issue, i dont know how overcome this issue
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Even i tried to convert the varchar to numberic, and also am getting same issue.
Can any one please guide, how to convert the above one.
I am trying to do the following:
If (ddlContacttype.DataValueField) = MyClass.ContactTypeEnum.MyContactType
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I get the following error "Conversion failed when converting the varchar value ' (' to data type int." when executing this code
View 2 RepliesSo I have a ntext column in a table with a combination of large random data (hence why ntext in the first place) and sometimes contains a uniqueidentifier.
I need to find and delete rows based on the uniqueidentifier.
I can't do the comparison with it being ntext, but I changed it to varchar(max) in my dev enviornment and it let me do it without any warnings and I can now do my comparison like I want to, so all is good.
I just want to make sure I'm not changing any of my large random data by changing the data type.
<Conversion failed when converting the varchar value 'ID' to data type int.>am trying to insert datavalueField for a drop down list into a table column, its type is int. am using this syntax
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I have a stored procedure, which I'm calling from ASP.Net application. I'm facing a problem in stored procedure when comparing values.Please check code below to get further details.
Stored Procedure:
ALTER PROCEDURE [dbo].[MyStoredProcedure]
(@ItemID nvarchar(50), @Weight1 float, @Weight2 float)
-- check remaining/available weight in items table
DECLARE @RemainingWeight float
SET @RemainingWeight = (SELECT RemainingWeight FROM items WHERE ItemID = @ItemID)
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