Data Access :: How To Get Column Datatype Using Namespace

Jan 2, 2013

which is to parse a create table script using Microsoft.SqlServer.TransactSql.ScriptDom namespace..I get a list of statements : StatementList SQLStatement = parser.ParseStatementList(StreamReader, out errors);then I cast a relevant statement to the CreateTableStatement type which gives me access to the ColumnDefinition class.

foreach (TSqlStatement T in SQLStatement.Statements)
{ if (T is CreateTableStatement) { CreateTableStatement  TC= (CreateTableStatement)T}}
with foreach (ColumnDefinition CD in TC.Definition.ColumnDefinitions)

I am ready to loop through the columns so far so good. I can get to the column name using CD.ColumnIdetifier.Value, to the data type using CD.DataType.Name.BaseIdentifier.Value, but can't seem to get to the length definition. Meaning, I can get column1 , varchar; but I need column1, varchar(40). where do I get (40) from?I tried using ScriptTokenStream under C.DataType, but it seems to iterate through all tokens not just ones relevant to that fragment.

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The Type Or Namespace Name 'SqlServer' Does Not Exist In The Namespace 'System.Data'

Jun 9, 2006

Hi,
I have created a .net class library and i include the namespace :
using System.Data.SqlServer
but when i build my .net class library i get the folowing error:
The type or namespace name 'SqlServer' does not exist in the namespace 'System.Data' (are you missing an assembly reference?) 
 
your help is highly appreciated
Best regards

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Articles About Data Access Using System.Data.SqlClient Namespace?

Mar 20, 2004

Aaarrgghhhhhhh, still searchin' for a nice step-by-step article to learn data access (all insert delete update commands) with the SQL Server .NET Data Provider found in [System.Data.SqlClient] namespace....

Can anyone plz help me to find it?

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SQL XML :: Handling Namespace In XQuery - Declaring A Namespace - What Is AWMI

Aug 4, 2015

After I learned the XML Schemas Collection, Using XML Data and 5 XML data type methods : query(), valuse(), exist(), modify(), and node(), I just started to do XQuery by using the Microsoft XQuery Language Reference - SQL Server 2012 Books Online and Handling Namespaces in XQuery of [URL]. I copied the following code:

-- Handlimng Namespace in Xquery (Page 6 of XQuery Languge Reference & Examples of msdn library)

-- Example A. Declaring a namespace

-- saved as MicrosoftXQueryPage6 in C:DocumentsXquery-SQLServer2012

-- 4 Aug 2015 10:55 AM

SELECT Instructions.query('
declare namespace AWMI="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ProductModelManuInstructions";
/AWMI:root/AWMI:Location[1]/AWMI:step
') as Result
FROM Production.ProductModel
WHERE ProductModelID=7

I executed the code in my Microsoft SQL Server 2012 Management Studio (SSMS2012). It worked nicely.

<AWMI:step xmlns:AWMI="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ProductModelManuInstructions">
Insert <AWMI:material>aluminum sheet MS-2341</AWMI:material> into the <AWMI:tool>T-85A framing tool</AWMI:tool>.
</AWMI:step>
<AWMI:step xmlns:AWMI="http://schemas.microsoft.com/sqlserver/2004/07/adventure-works/ProductModelManuInstructions">

[code]....

But, I don't know what AWMI means and what the results of SELECT Instructions.query(' declare namespace...  are. 

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Error Using SQL Datatype Text As Output Parameter From C# Data Access Layer

May 19, 2008



Hello,

My datalayer of C# code is invoking a stored procedure that returns a varchar(max) SQL data type. In my ASP.NET code, I have:

SqlCommand myCommand = new SqlCommand("usp_GetTestString", myConnection);
myCommand.Parameters.Add(new SqlParameter("@TestString", SqlDbType.Text));
myCommand.Parameters["@TestString"].Direction = ParameterDirection.Output;
myConnection.Open();
myCommand.ExecuteNonQuery();
return Convert.ToString(myCommand.Parameters["@TestString"].Value);

The query fails to execute and returns an error: String[1]: the Size property has an invalid size of 0. If I change the SqlDbType.Text parameter type to SqlDBType.Varchar, 100 (or any other fixed varchar length), it works but limits the length my unlimited field text. Any suggestions on how I can use db type text or varchar(max)? The field I need to retrieve is string characters of unlimited length and
hence the datatype varchar(max).

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Design For Loading Data Without Knowlged Of Datatype Or Column Count

Jul 17, 2006

I am loading data from an external source into SQL Server via ASP.NET/C#. The problem is that I do not necessarily know the data types of each column coming in, perhaps until a user tells the application, which might not occur until after the data is loaded. Also, I cannot anticipate the number of columns coming in. What would table design look like?
Would you use a large table with enough columns (e.g. Column1, Column2, etc.) reasonable enough to accomodate all the columns that the source might have (32?), and use nchar as the datatype with the plan to convert/cast when I use the data? Isn't the cast kind of expensive?
Does this make sense? Surely other foplks have run into this....
My thanks!
 
 

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Data Access :: Insert Rows To MS Access 2013 Without Listing Column Names

Nov 12, 2015

We need to insert data/rows from a SQL Server 2014 database into MS Access database.  The problem is, there are so many columns (100+) in the table and there are so many insert transactions of this kind (from different tables) that it is not very easy to write the code in VB.NET that lists all column names.

Both the Access and SQL Server tables have the same number of columns and the equivalent data types, so inserting is not really the problem.  It's just that is there a way to do an insert statement in T-SQL that does not name all the columns?

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ACCESS SQL COLUMN DATA TYPE

Oct 19, 2007

HELLO
i have an sql server database, with a table an some columns.
how can i get the data type of each column and the lengh define in the database table?
 

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Data Access :: Finding Min Value Corresponding To Other Column

Aug 12, 2015

Query :-

 SELECT
 MAX(TIME_VAL)  AS  Duration1 ,
 MIN(TIME_VAL)  AS  Duration2 , 
 --  VALUE OF LATITUDE CORRSPONDING TO  MAX(TIME_VAL)
 --  VALUE OF LATITUDE CORRSPONDING TO  MIN(TIME_VAL)
  (Select LONGITUDE from (select LONGITUDE ,  row_number()
   
[Code] ....

I am not getting Correct values for StartLongitude , EndLongitude. How can i achieve this to get the val of latitude corssponding to max/ min of time_val column.

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Data Access :: How To Get Min Of More Than One Column In Select Query

Nov 24, 2015

I am using SQL select query to select MIN from column data but I have 12 columns and want to select MIN of all these 6 columns in one SQL select statement.

I have written as SELECT MIN(temp_sv,humidity_sv,SH1,SH2,SH3,SH4) from production but its not working... How to do this....

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Data Access :: How To Find Column Names In A Table

Sep 11, 2015

how to find the columns names in a table in sql 2008r2.

as i need to compare the midsing fields in the table from two database.

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Data Access :: Identity Column Jump1000 Record In Once

Oct 7, 2015

I have table contains more columns  and first column have ID  int not null primary key  and auto increment by 1 seed by 1 the ID 165000 record  and instant Jump to 166000 and increment by 1 ...

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Sql's Equivlent To Access' Memo Datatype?

Apr 27, 2004

Does anyone know what datatype I could use to store a large amount of text? I just started using sql two days ago and still trying to become familar with it. Took me a whole day to set up a damn trusted connection.....newbie

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Datatype That Accepts Fractions Like 7/8 In Access 97

Mar 2, 2000

hi, what would be the data type for entering the following information to a field . 2 3/4 or 1/2 .. ... Here what I want to do, I want to be able to enter such value into that field.

Thanks
Ali

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Sqlserver Access Datatype Differences

Jul 20, 2005

can someone point me to the differences in the datatypes between accessand sqlserver?I've writen a program that creates a table in access using an sql createquery. However, if I point to a sqlserver odbc datasource the querybombs

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Import From Access - Datatype Conversions

Jul 6, 2006

I have to do a lot of inporting from Access files.  Is there a place where I can change the default datatype conversion for Access Text from nvarchar to varchar?

Thanks.

Kato

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Data Access :: Column Name Or Number Of Supplied Values Does Not Match Table Definition

Jun 22, 2015

I'm executing a stored procedure but got error :

Msg 213, Level 16, State 1, Procedure ExtSales, Line 182
Column name or number of supplied values does not match table definition.

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Column Datatype

Jan 9, 2005

Hi folks, need ur help.

I want to convert strings from a textfile and convert em to appropriate datatype for the destination columns, eg if i have a source value in string 11111 and the destination column is MONEY. I want to use CONVERT(functionretruningdatatype,'11111') in my insert statement.

Any guidance!



Howdy!

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Problem Convert Datatype &#39;hyperlink&#39; From Access To SQL-Server

Mar 27, 2000

Hi,
on a migration from access 97 to SQL Server 7.0 columns in access like 'hyperlink' are converted to datatype 'text' on the SQL Server 7.0. Now I miss the function in the access application I had before with fields like 'hyperlink'. Now I can't start e.g. a word document with a click and I have to type in the hyperlink manualy.
Does anyone had the same problem an possibly have a resolve?
Thanks.

Michael from Frankfurt, Germany

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Jul 3, 2004

I want get DataType of Column in Table

ex: nvarchar, varchar, etc...

Help me !!

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Mismatch Of Column Datatype Between EM And QA

Dec 12, 2005

I've changed the width of a column from 128 to 64. How to EM shows 64, while sysobjects and sp_help show 128 ?? Even after disconnecting and re-connecting (just to be extra sure).

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Changing A Column Datatype

Dec 2, 2006

Hello I am having a table

table1
col1 (bit)

and i want to changethe col1 type for smallint

col1 (smallint)

true will be = 1
and false = 0

how can i do it ??
thank you

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Sum Float Datatype Column

Feb 12, 2014

I'm using this query to sum the values. The cost column is a float datatype and what could I differently do here to sum the cost. I'm unable to sum the cost.

Also is there any way I change the datatype to int for Cost column without losing the data.

select ID, MAX(Date) Date, SUM(Cost) Cost, MAX(Funding) Funding from Application
group by ID

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Derived Column In XML Datatype

May 9, 2008

Hi,

I have a data flow task where I have mutiple columns (of different data types) , I want to create a single column using all these columns in XML format and load it into a table with a column of datatype XML. Can I accomplish this using Derived column tranformation?

Thanks

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Jan 21, 2007

hi ,How can I find  sql Datatype (like NVARCHAR , DESIMAL & .. ) and size of columns  and  also is it Identity or not in a Table of SQl server?

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Change Column Datatype $2,000 To 2000

Jul 30, 2007

Hello,How do I change the datatype of a column in a CSV file.  Preferably in the select statement (apparently Cast, Convert, & Replace functions don't work when selecting from a CSV). I have a page where users upload their CSV files to and then I use SQLBulkCopy to insert all the records into my sql table.  The problem is with columns of money data. EX: "$2,000"  >>  2000The CSV file interprets the "$2,000" as a string of text.  How do I convert it to a decimal so I can insert it into my sql database? 

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Retreving The Column With Datatype-smalldatetime

Mar 12, 2008

Hi all
   A table consists of a column with name "Createddate" with datatype smalldatetime.
defaultly iam binding getdate() to Createddateso it is storing in tthe below format --
Mar 12 2008 11:38AM
while retreving iam mentioning...
select * from tbl where convert(varchar,createddate,101) = '03/12/2008'
it is showing no records ..even though records r there with --march 12 2008.
plz do needful in this senario.
thanks & regards
kanth
 
 
 
 

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Could A Datatype Of A Column Be Like Integer Array?

Aug 7, 2004

Hi everyone....
I need a column in my table that its DataType should be as integer arrays how can I implemant it in my sqlserver table.
Any help appreciated.

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Changing The DATATYPE Of A PUBLISHED COLUMN

Oct 27, 2003

Hi guys,

Is there any way or method to CHANGE the DATATYPE of a column in a published table being used for transactional replication (MSSQL 2000), WITHOUT DROPPING THE SUBSCRIPTION ????

Im stuck in this mess and do have the option to drop the subscription, alter the table, create the subscription and rerun the snapshot or to recreate it by Manual Synchronisation either.

Can anyone help? Has anyone been across this dilemma before and have troubleshooted the problem? If yes, help is much appreciated.


MY PROBLEM:
~~~~~~~~~~~~~
'MyTable' is currently being published and has subscriptions to it. The PRIMARY KEY column 'id' has an Identity property as well. 'id' is of datatype smallint, however because of bad planning, i now need to change that datatype to an integer to support a larger range WITHOUT DROPPING SUBSCRIPTIONS.
I CANT DROP THE COLUMN EITHER AS IT IS BEING THE PRIMARY KEY COLUMN.

IS THERE ANY OTHER WAY I CAN DO TO ARCHIEVE MY GOAL? THANKYOU.

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Find Column Name And Datatype Of A Given Table

Jul 22, 2006

Hi,

How do we find the "column name" and "data type" of all the columns in a table. Assuming that I know the Table name or Table Object ID. I am using Microsoft SQL Server 2000.

Thanks
-Sudhakar

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Update Column Without Changing Datatype?

Oct 15, 2015

I am trying to make the following update: All the columns are fine except for the 'name' column. datatype for 'name' column in the target table is varchar(30) and the datatype for 'name' in the sourcetable is varchar(40), I cannot change the datatype of the column 'name' to varchar(40) because I am told it may affect performance. what I want to do is just update the first 'name' column of the target table by the first 30 characters of the source table column 'name'

I am using the following query, is it possible to do it or are there any other ways I can update the column without changing the datatype?

MERGE INTO [S].[dbo].[AF_Copy] AS TargetTable
USING (SELECT source_code, name, addr1, city, zip FROM
[D].[D_TEST].[dbo].[SO_Copy]) AS SourceTable
ON ([TargetTable].[Code] = [SourceTable].[source_code])

[code]...

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Dec 20, 2013

I am having Test table with (id int , DataDescription xml) . I need to read the values from DataDescription column and insert into one table.

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Jun 14, 2007

Hi,
i am trying to load output of count(X) and sum(salesamt) into the same column. if iam using transformation data task what datatype should i be converting the two outputs to accomidate result as

10.00 --count
234.00 --saleamt
22.00 --count
1000.00 --saleamt

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