SQL Server :: Differance Between Varchar(25) And Nvarchar(25)?
Mar 7, 2011I am using sql server 2008. Could anyone tell me the differance between varchar(25) and nvarchar(25)? Which is more efficient?
View 3 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 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 want to use three language: English, German and italian. If i will use varchar type, will i face any problem or I have to use nVarchar.
View 3 Repliesi want to convert all my database columns whose data type is char,varchar, nchar to nvarchar datatype. But the main problem is that some of my primary key, foreign key columns are also of varchar datatype. So when i try to change their datatypes to nvarchar then i receive the errors related to constraints of Primary Key, Unique Key and indexes. how to change the datatypes to nvarchar after droping the constraints and after changing all constraints will apply again. I also want that no data loss will occur.
View 5 RepliesI have an output parameter called '@packIds', that I create in ADO.Net using the code below:
SqlParameter packIdPara = new SqlParameter("@packIds", null);
packIdPara.SqlDbType = SqlDbType.VarChar;
packIdPara.Direction = ParameterDirection.Output;
sqlCmd.Parameters.Add(packIdPara);
How will I specify that the parameter '@packIds' is of max size? I cannot find any code for this.
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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 would like to know, how to set up the Entity framework to create a nvarchar(50) insted of a nvarchar(4000), when creating a string? by the way I am not using the designer!
View 6 RepliesDoes it make a difference in terms of the actual size of the database if I define one of the columns as nvarchar(100)? If there are restrictions on the form as for how much you can input, let's say 50 characters, does the db save blank spaces from character 51-100 and create a database that is larger than it would be it the column was defined as nvarchar(50)?
View 2 RepliesIn the following code, should we change the parameters from SqlDbType = SqlDbType.Int to SqlDbType.NVarChar?
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how can specified nvarchar data type without N''?
View 2 RepliesIn one of my stored procedure I have to compare two nvarchar datatype values.The values containing both numerical and characters.Which function should I write? And one more problem i.e if a number containing zeros in starting ,I should also match including zeros.But not omit zeros.
View 3 Repliesnote MONTH AND DATES stored in single or double digits as they occur. Unfortunately DATE TIME is stored in NVARCHAR Data type column as 2/9/2010, 22/10/2010 etc. Following UK Date here. It is required to pull the data to COUNT No. of Expired. Obviously below one fails.
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The following datatype or size property of <Tablename>.<Columnname> doesn't match <Tablename>.<Columnname>. When creating a foreign key relationship, the data types and other properties of selected columns must match. Select a column with the same data types and other properties as the related column. The properties that must match are Data type, Length, Precision, Scale, and Collation.
I am trying to add a constraint to my database and I keep get the above error. I can find Data type, length, and Collation in the properties. What are precision and scale in this context. I don't see such settings. Specifically I am trying to add a relationship from the aspnet_Membership table to a table that I added. I have put a relationship on aspnet_Users.UserName to another table, so I am baffeled.
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'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.
My table contains a column named visitorimage with image as the datatype. I have a stored procedure to insert an image but whenever I try to create the sp an error occurs saying"Operand type clash: nvarchar is incompatible with image". What's the problem and how to fix this?
ALTER PROCEDURE [dbo].[usp_addvisitor] @lastname nvarchar(50), @firstname nvarchar(50), @visitorimage image, @gender char(6), @personalid nvarchar(50), @vehicleno nvarchar(20), @company nvarchar(50), @represent nvarchar(100), @phonenumber bigint, @mobilenumber
bigint, @address nvarchar(100), @remarks nvarchar(200) AS INSERT INTO tblVisitor VALUES (@lastname, @firstname, @visitorimage, @gender, @personalid, @vehicleno, @company, @represent, @phonenumber, @mobilenumber, @address, @remarks)
I'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 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 have a requirement to have a multiline textbox that accepts any text from any language and stores this into the database for later use. I am using Linq with ASP .NET 3.5 with a SQL Server 2005 database.
View 2 RepliesI have latitudes and longitues in a table but they are in a nvarchar(50) field althought the values are like this -> 39.7355 I need to be able to convert those values to numeric to execute a calculation and update a new field
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my radiantlatitude field is of type 'float'
I have a query in SQL Server 2008:
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Everything looks fine but I keep getting the error: 'Conversion failed when converting the nvarchar value 'xxxx' to data type int... where xxxx is the the value of @Query.