What are the drawbacks with using a varchar max datatype? varchar stretches on insert/edit to fit the required amount of data (yes/no), IM gussing this makes it slower? I don't think I can Avoid using this data type, but should I try to avoid its usage if possible,
View 2 RepliesI am coming to SQL Server from Access and using it mostly for making ASP.NET web apps.
I am not sure I correctly understand the characteristics of the varchar data type and I'm so far unable to find a basic explanation.
It seems that the benefit of this data type is that the actual disk storage involved varies according to what is in a given record's column. So for a column defined as varchar(500), a record where the column uses all 500 characters will use more bytes on disk than a record where the column uses only one.
This would seem to imply that unless there were some reason to limit the characters allowed into a column, it would be an advantage to define large columns, say varchar(8000), especially for memo type fields, or fields such as addresses where it seems like clients are always asking for more space as time passes.
Is this right? Is there any downside to defining large varchar columns assuming they do not conflict with business rules?
Many thanks
Mike Thomas
I am trying to create a store procedure inside of SQL Management Studio console and I kept getting errors. Here's my store procedure.
Code Block
CREATE PROCEDURE [dbo].[sqlOutlookSearch]
-- Add the parameters for the stored procedure here
@OLIssueID int = NULL,
@searchString varchar(1000) = NULL
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
IF @OLIssueID <> 11111
SELECT * FROM [OLissue], [Outlook]
WHERE [OLissue].[issueID] = @OLIssueID AND [OLissue].[issueID] = [Outlook].[issueID] AND [Outlook].[contents] LIKE + ''%'' + @searchString + ''%''
ELSE
SELECT * FROM [Outlook]
WHERE [Outlook].[contents] LIKE + ''%'' + @searchString + ''%''
END
And the error I kept getting is:
Msg 402, Level 16, State 1, Procedure sqlOutlookSearch, Line 18
The data types varchar and varchar are incompatible in the modulo operator.
Msg 402, Level 16, State 1, Procedure sqlOutlookSearch, Line 21
The data types varchar and varchar are incompatible in the modulo operator.
Any help is appreciated.
Hello,
I am trying to write a small dynamic sql statement and I am receiving the following error when working with a bit data type.
The data types varchar and bit are incompatible in the add operator
Here is what I have:
Code Snippet
create proc [dbo].[usp_SetupDatabaseUser]
(
@ProcAccess bit = 0
)
as
begin
set nocount on
declare @sql nvarchar(MAX)
-- Check for user existence
select @sql = 'if (' + @ProcAccess + ' = 1)
begin
print ''Hello World''
end'
exec @sql
end
After I execute, that is why I receive the error. Any advice would be appreciated!
Thanks,
Flea#
Could someone please help me by explaining which one is best to use and when? For example, storing the word "Corona Del Mar" - which Data Type would be suggested?
Thanks.
There are a few databases I work with that have been designed where varchar columns are used to store what actually displays on the front end as Ints, Decimals, Varchars, Datetimes, checkboxes.
I often have to write integrations with these databases bringing data in and prefer to validate the data whilst loading from the staging tables.
I have seen allsorts of values being passed into the staging tables that will load into the target database because the columns are all varchars but the values don't display on the front end because the app actively filters bad values out.
What I would like to do is for my validation scripts to warn up front of potentially invalid datatypes. My problem is that forexample the ISNUMERIC() function return 1 for the value ',1234' but a CONVERT(NUMERIC, ',1234') or CAST(',1234' AS NUMERIC) will fail with a "Error converting data type varchar to numeric).
I've been trying to locate a set of reliable datatype testing functions that will reliably determine if a varchar can be converted to a given data type or not.
I am trying to solve an issue in SQL but am getting this error
The data types xml and varchar are incompatible in the equal to operator.
My Query is fairly long. How I can resolve this?
UPDATE Promotions
SET PromotionDiscountData = '<ArrayOfPromotionRuleBase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><PromotionRuleBase xsi:type="ProductIdPromotionRule"><ProductIds><int>13,16,15215,15223,15225,15227,15231,15261,15266,15267,15272,15274,15276,15277,15288,15289,
15290,15292,15293,15297,15299,15316,15329,15336,53787,53788,53789,55872,55873,55874</int></ProductIds>
[Code] ....
Hi,
If I make a select query on my table, this error appears:
"The data types text and varchar are incompatible in the equal to operator"
In my table , I have 4 fields with "text" datatype.
My query is like : "Select * from table where field1='test'"
It's seems to be simple, but it doesn't work!!!
Thanks
Hi,
I´m exporting an ms-excel file, then I use a lookup transformation to get a field from a SQL Server 2005 table. The Lookup transformation editor, after selecting the table, shows a warning that says:
at least one mapping between a column from available input columns ans a column from available lookup columns must be defined on the columns page.
So I try to make a relationship in the Lookup transformation editor's column tab where I find the Available input columns and the available lookup columns but I get the following error:
The following columns cannot be mapped:
[Department, DEP_CLEGALCODE]
One or more columns do not have supported data types, or their data types do not match.
The field in SLQ Server is varchar(10) and the input field is a derived column transformation; I have tried different Data Types but I always have the same error.
The DataFlow is: ExcelSource --> Derived Column --> Lookup --> Flat file destination
thanks.
I have looked far and wide and have not found anything that works to allow me to resolve this issue.
I am moving data from DB2 using the MS OLEDB Provider for DB2. The OLEDB source sees the column of data as DT_TEXT. I setup a destination to SQL Server 2005 and everything looks good until I try and run the package.
I get the error:
[OLE DB Source [277]] Error: An OLE DB error has occurred. Error code: 0x80040E21. An OLE DB record is available. Source: "Microsoft DB2 OLE DB Provider" Hresult: 0x80040E21 Description: "Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.".
[OLE DB Source [277]] Error: Failed to retrieve long data for column "LIST_DATA_RCVD".
[OLE DB Source [277]] Error: There was an error with output column "LIST_DATA_RCVD" (324) on output "OLE DB Source Output" (287). The column status returned was: "DBSTATUS_UNAVAILABLE".
[OLE DB Source [277]] Error: The "output column "LIST_DATA_RCVD" (324)" failed because error code 0xC0209071 occurred, and the error row disposition on "output column "LIST_DATA_RCVD" (324)" specifies failure on error. An error occurred on the specified object of the specified component.
[DTS.Pipeline] Error: The PrimeOutput method on component "OLE DB Source" (277) returned error code 0xC0209029. The component returned a failure code when the pipeline engine called PrimeOutput(). The meaning of the failure code is defined by the component, but the error is fatal and the pipeline stopped executing.
Any suggestions on how I can get the large string data in the varchar column in DB2 into the varchar(max) column in SQL Server 2005?
I have a table that is returning rows from a table query. It seems I have done it before but I cannot seem to get the right procedure to obtain the values. I will paste in the code below in which you will see my bad attempts at accomplishing what I need.
Dim uid As String
Dim pw As String
Dim em As String, fn, ln, mi As String
Dim par As String
Dim Field, n, j As Integer
Dim JJ As Integer
[code]...
I am trying to find a reference for a client that lists the fields available to be substituted into a data driven subscription from the query, along with the expected data types.  For example, the field on whether or not to include a link to the report seems to be expecting a bit data type.I have searched and can't seem to find anything.  I guess I could walk through the interface and try different data types, but if  a list exists, that would be better.Â
View 4 Replies View RelatedDoes anyone know of any cross-references between SQL Server data types and the new data types introduced with SQL Server Integration Services?
View 6 Replies View RelatedOne of my report has different data types like decimal,percentage and integer values.
When I exported the report to excel , all the values are showing as "general" data type.
How to get excel data type same as ssrs report data type by default when exported to excel?
I Have a table with #Sample like below
=================================
#Sample
id int,
SSN varchar(20),
State varchar(2)
Â
Sample Data:
ID SSN STATE
1 999-000-000 AB
2 979-000-000Â BC
3 995-000-000Â CD
=================================
We used filter logic based on the SSN & State.
We are passing these values through variables like
Declare @State varchar(2)
Declare @SSN varchar(20)
While run time these values are lets suppose @SSN = '999-000-000' & @State='ABC'
Now the Result is displayed with the state data Like 'AB' only.
Output: 1 999-000-000 AB
instead it should give system generated error.
Here I have 2 Questions:
1. Why it is taking 1st 2 Charecters?
2. Why it does not have any system generated for length?
I can do validation with Length function for these 2 variables however if have 100 variables then it should not feasible case. So, what is the reason behind?Â
I have an source file and i have to load it into the data base by changing datatype of the columns in ssis
View 1 Replies View RelatedI'm in the process of converting a rather huge VSAM database into a set of SQL tables.
I am using the same data names from the mainframe (like XDB-NAME to RDB-NAME).
I load the files using Import Export Data and it makes the tables with such column names as col001, col002, col003, etc... and always sets the data types to varchr(255).
And I have to cut and paste the data names from the manframe side to the server side (and the data types to.)
So, is there an easier way to do this? Or am I doomed to cut-n-paste my days away...
Thanks for any help.
SQL Server 2000, ASP.Net 1.1
I've been writing this stuff for a while, and can't seem to come to the
conclusion of how I should be retrieving data and assigning this data
to variables.
Since i'm using SQL Server, I'm convinced that I should be using the
datareaders GetSqlDouble (or whatever) function, but this would mean i
need my local variables to be one of the SQL types. The problem
with that is, that there will have to be lots of conversions done by me
to be able to use a SQL type in my application.
For instance, I have a class where i'm retrieving dates. In order
to retrieve them correctly (Null values included), I need to retrieve
them with GetSqlDateTime(), then when it comes time to display the date
in a table, i must first check for nulls, then convert to a
string. This seems to be very cumbersome. Would I be better
off just using GetDateTime(), and the .ToString method, and ignoring
Sql Types all together?
so, basically, how are you guys using your sql server data? with
the supplied sql types, and doing all of the post-processing work
manually? I feel like i'm having trouble conveying my
issue...hopefully someone knows what i mean....i'd just like some
direction to save trouble in the long run, since i feel like there's
got to be a better way...
Confused!
Thanks,
JJ
I have a client program that writes to sql server database 10 records per second . i want to compute the CPU usage and the memory usage for the whole program or CPU usage,memory usage for the insert statement in the program .
Can anybody help me with this?
Hello, When I am seeing SQL Server 2005 Management studio Server Dashboard> I am seeing my(USERS) databases and msdb database usage is very small % of in CPU Usage(%), Logical IO Performed (%) Usage pie chart.
90% of Total cpu usage is showing for Adhoc Queries. what excatly this means in Dashboard? if application uses more than it would have shown in Database level or not?
sicerely this dashboard is good, if any one is watching daily, please advice their experiences here.
Thanks in advance. Hail SQL Server!
Is it possible to easily copy data from one table to another if the data types don't match. I know you can do a INSERT INTO table1(col1,col2) SELECT (col2,col7) FROM table2 if the data types match but is there a way to do this if they don't. I'm not trying to copy date times into bit fields or anything. I just have an old table that I built when I really didn't know what I was doing now I at leastthink I have a better understanding of what data types to use, so I was wanting to move the data in the orignal table to my new one. Most of the fields in the olddatabase are text datatypes and the new database is nvarchar(50) data types. Thanks for any suggestions.
View 4 Replies View RelatedHello,
I have a really dumb question regarding SQL data types. I have a couple columns in a table that are specified as MONEY. These columns are being read from my web app and displayed on the website for reference when filling in other information.
My problem is that when it is displayed on the website it give four decimal places instead of two. For example I want it to report $33,000.29 but what is actually displayed is $33,000.2965.
How can I set up either SQL or my web app so that it only displays the two decimal places? I've looked into changing the datatype already but SMALLMONEY and MONEY have the same type of decimal values.
Thanks!
I am looking for a chart of SQL Server data types and information about them, such as usage, constraints, etc. Could anyone point me in the right direction?
Thanks
I'm just getting used to using SQL 7 Database and am looking for some recommendations on what DATA TYPES to use when designing tables.
The site I am working on now uses cold fusion to enter, update, and insert mainly text and articles. Now the problem with the articles is that some of them are pretty big. And when inserting or updating them, if they go over the limit of characters I get an error.
I know in access I used to use the data type "MEMO" and be able to put a large piece of info in that field.
What's the equivalent for SQL server databe?
What are the most used/common or recommended data types that should be used when putting tables together?
Thanks
George
hi, i'm trying to build an online forum using sql server 2000 and coldfusion mx.
could anybody help me as to what datatypes i should use for my database fields?
i'll be using 2 simple tables to start with, ie TOPICS and POSTS. each will contain fairly basic information such as name of poster, time, data, title, message etc.
any help would be greatly appreciated.
thanx, zaffi.
Which data type do I need to assign to my field to let users enter characters such as +=-_| etc....pretty much every single character from a standard keyboard....
thanks
Hi,
I am pretty new with SQL and was dabbling in a test database that is linked with a software application.
I made a change to a table - Lets call this (Table1).
Table1 has a multiple columns.
Column1 is defined as numeric(9)
Column2 is defined as varchar(20)
In this case, I wanted to make all values in Column2 = Column1 that did not have a value defined so I ran the following query:
update Table1 set Column2 = Column1 where Column2 = ''
This took effect but the particular software application doesn't recognize these values because they are the wrong data type.
How can I convert all data in a column to varchar(20) if it is another data type (i.e. in this case numeric(9))?
I've tried in Enterprise manager to redesign the table and adjusted the length to 21 and then back and saved it but this did not work. I was looking at Convert and Cast functions but don't know how to write one to accomplish what I need to do here.
Half of the data in Column2 is varchar(20) and half is numeric(9).
I want all to be varchar(20).
Thanks,
asyncd
Im comparing values. if i add the values which is numeric or monetary in the column and if it is greater than zero it will insert to a table, but the datatype of my column([Day 30 AMT] etc. is char. i want to implement like these like these because it cant return a result if i query..
FROM tbl1 a LEFT OUTER JOIN tb2 b
ON a.ID = b.ID
WHERE b.ID IS NULL AND
a.[Day 30 AMT] + a.[Day 60 AMT] + a.[Day 90 AMT] + a.[Day 120 AMT] + a.[Day 150 AMT] + a.[Day 180 AMT] + a.[Day 210+ AMT]) > 0
What is the difference between int and numeric data type in sql server 2000. When I should use which?
View 2 Replies View Relatedwhat is the equivalent data type of autonumber of access in sql server?
View 2 Replies View RelatedHi,
I want to store a decimal value which I get from an execute sql task into a package variable. Which data type should I specify when creating the package variable?
Thanks,
Tom
I have successfully made a couple of SSIS packages to read data from a legacy AS400 to SQL Server 2005. These are working fine. I am now working on one that is trying to pull some financial data and I keep getting the following error for the decimal columns:
"The component ciew is unavailable. Make sure the component view has been created. The input column "input column AMT1 (2870) cannot be mapped to "external metadata column AMT1(2852) because they have different data types."
Now I made sure that the data sitting on the AS400 is of type decimal and the SQL server column is the same. What else do I need to look for?
Thanks for the information.
Hello, I am following this article about building an ASP.Net application which uses SQL Express 2005. The document calls for building a couple of tables. One column is identified with data type of "Byte" which are is available for selection within the Visual Studio 2005 interface. The following values show in the drop down of data type in VS2005:
Bigint
Binary(5)
Bit
Char(10)
DateTime
Decimal (18,0)
Float
Image
Int
Money
NChar(10)
NText
Numeric(18,0)
Nvarchar(50)
Nvarchar(max)
Real
SmallDateTime
SmallInt
SmallMoney
Sql_Variant
Text
Timestamp
TinyInt
UniqueIdentifier
Varbinary(50)
VarBinary(max)
varchar(10)
Varchar(max)
XML
I choose Char with a size of 1. Would this be correct, or am I missing something?
Thanks in advance for your assistance!!