What's The Best Method For Updating Related Data?

Jul 31, 2006

Can you describe the best (or your preferred) method for updating data held in a related table using Visual Studio 2005 and SQL Server.

For example; if you had a stock control system with the product names and current stock levels in one table and all stock movements in and out held in another table, what is the best, fastest, safest and most reliable method of inserting a stock movement and then updating the current stock level?

I have tried a couple of different methods but would really appreciate a wider range of opinions.

Thanks

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Auto Incrementing-&>Updating Values In Two Related Tables :Help!!!

Nov 11, 2005

hi there,
 i am new to sql server database.i am doing small projects right
now using asp.net and sql to create webpages (very basic webpages)
My problem is:

Problem :
 
   i have two tables .....table 1 and table 2.
                   
                   
                   
    Table 1 has following fields: studentid,student name,student address.
                                                               
Table 2 has following fields:studentid and course .
  table1 student id is the primary key refrencing table 2 student id.
Now i delete a record in table 1 which will in turn also get deleted in
table 2 . so for eg  if i have three records 1 ,2 and 3 ....then i
delete 2 in table 1 ...i will have 1 and 3 in both table 1 and table
2....now i want 3 to become 2 in both table 1 and table 2...so that i
dont have empty space between two student id's 1 and 3. so this is my
problem....if any one can help me out with suggestions please
do.  
                                                                                 
thank you all........
                                                                                                           
     ahmed_ind

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Feb 9, 2007

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Jul 31, 2015

Right now I am leaning towards joining a temp table that pulls my aggregates in and then joins them on metric id and year month. But I noticed my bosses boss who knows this stuff a lot more than I, seemed to do direct inserts dropping that whole range.

Same criteria but different approach. I like updating the new results and not dropping or deleting the contents. I like using temp tables too it makes it easy to just select into them and join off of them on the destination table that will be updated.

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Dec 16, 2007

Lets assume database A is production, B is copy. SQL Server 2005 sp2, SQL CE 3.5

Database A has a variety of transactions against it 24x7
Database B (the copy) is for reporting and as a source of merge replication for SQL CE instances
Merge replication and reporting is used 24x7 as well

I have the following requirements:
Maintain an up to date copy of the production database (need not be up to the minute, could be hourly, even daily update)
Database B is read-only. The merge replication is NOT bi-directional.

Here is the caveat (which I think prohibits using some solutions to this problem):
The production application accomplishes much of it's functionality with in-memory copies of records. I have no control over the production application. When it works against the database, it sort of does a 'withdrawal-deposit' scenario. (to the best of my knowledge it's not using SQL Server transactions) So, for every record it works with, a copy is made out of the database, changes are made in memory, a delete of the database record is done, then the record is re-inserted.

With this kind of behavior in db A, I'm not sure what it would do to log-shipping or transactional replication. I do know that I want to minimize the changes required at the SQL CE instances to keep the sync operation to a minimal cost.


Any suggestions?

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It Is Very Slow At Updating By Use Cursor (fetch Method)

Feb 5, 2001

Hi all,

I got a problem. I am working on DTS package. The last step is updating a table field. I wrote a stored procedure as below:

CREATE PROCEDURE [Update_product_manufacturer] AS

Declare @product_id int
Declare @supplier_name VarChar (255)


Declare ValueCursor Cursor For


select product.product_id, [P21_SUPPLIER_id_name_ke].[supplier_name]
from [VARIANT],[P21_INV_MAST_uid_itenID_weight_ke],[product],
[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e],[P21_SUPPLIER_id_name_ke]
where
[product].product_id = [VARIANT].[product_id]
and
[P21_INV_MAST_uid_itenID_weight_ke].[item_id]=[VARIANT].[SKU]
AND
[P21_INV_MAST_uid_itenID_weight_ke].[inv_mast_uid]=[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e].[inv_mast_uid]
AND
[P21_SUPPLIER_id_name_ke].[supplier_id]=[P21_INVENTORY_SUPPLIER_uid_supplierID_price_cost_k e].[supplier_id]
order by [product].[product_id]
for read only

Open ValueCursor
while (0 = 0)
begin
fetch next
from ValueCursor
Into @product_id, @supplier_name


update product
set manufacturer = @supplier_name
where product_id = @product_id

end

close ValueCursor
Deallocate ValueCursor

Notes: Table: Product has 28,000 rows, other tables with 28,000 - 56,000 rows

it's been 2 hours, the job is still working.

Who has this kind of experience? How can I make updating quickly?

Thanks,

Kevin Zhang

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Sep 21, 2006

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Any suggestions?

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Jul 19, 2006

I need to recreate a SQL 2005 db in a SQL 2000 server. So far I was able to recreate database schema, but I don't know how to import the raw data. I tried copy-pasting table data to the new db using SQL Server Management Studio Express, but there's a problem - the identity columns do not retain the correct values. For example:

Old db table

ID Username
-------------
15 Peter
45 James

When pasting the same data to teh new db, I would get this:

ID Username

-------------

1 Peter

2 James

You can see the ID field values become different (since the ID attribute is an identity and the table in the new db is empty, the db picks the values 1 and 2 for the two records) and now when pasting data into related tables, I get the error because table relations (which are based on identities) do not match. How do I solve this problem and import all the data into the new db while maintaining correct relationships among tables?

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May 10, 2007

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Nov 14, 2007

I have a relationship database that contains two related tables.  Table1 has the fields Customer_Name, Customer_ID, and products_Purchased. Table2 has the fields Customer_Name and Cutomer_ID. I would like to add a new row to Table1for a new purchase by a cutomer. When I try to add a new value in Table1 I get an error message saying I can't add a value to table1 because it requires a corresponding value in Table2. I am using the following code: '**********************************************
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& session("ID") & ")"
 ' *****************************************
How do I write an INSERT STATEMENT that adds vaules to both tables, so that the code works?
Any HELP would be appreciated.
charlie

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Apr 1, 2008

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May 28, 2007

Hey,

I want retrieve data from 3 table my tables structure is this

tblUsers

U_ID - Name

3 John


tblGroups

G_ID - Name

5 Admins
6 Moderators


Now I want join some of the users to different groups for example John maby is a member of two groups (Admins and Moderators)

in order to do this I created a new table names tblGroupsUsers

tblGroupsUsers

ID - User_ID - Group_ID

1 3 5
1 3 6


its ok, but Now I don't know how to retrive my users list from database I don't know how to write a wuery for this
I have tried this :



strSQL = "SELECT tblUsers.name, tblUsers.U_ID, tblGroups.G_ID, tblGroupsUsers.Group_ID, tblGroupsUsers.User_ID FROM tblUsers INNER JOIN tblGroupsUsers ON tblGroupsUsers.User_ID = tblUsers.U_ID, tblGroups WHERE tblGroupsUsers.Group_ID = tblGroups.G_ID ORDER BY tblUsers.name ASC;"



Its working withut error but the problem is the results its like this


John

John


its will retrive the username twice , I think its reading based on tblGroupsUsers table because it has two rows ,
help please I need this how can I configure my query to get eache name once

Thanks

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Mar 2, 2008

i am using ms sql server 2005 express for the following:

T1 = {t1.c1(PK), t1.c2, t2.c1(FK)}

T2 = {t2.c1(PK), t2.c2}

where T1 and T2 are tables from the same database, and tn.cn are CoulmnN of TableN
T1 and T2 are linked by the relationship t2.c1

i need to know how to add records to T1 and T2 using ms sql.

record for T2 needs to be added first then retreive t2.c1 from T2 to add record to T1 with t1.c1, t1.c2 t2.c1

please help, thanks

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Jul 20, 2006

I have two tables.  When my user completes an insert of data in table (1), I would like the second "related" table (2) to be automatically populated with defaults.  Is this possible?
My logical approach to this is:
1.  Build a handler for the OnInsert event of the first table
2.  In the handler, call the Insert Command on the SQLDataSource for the second table with the defaults specified in the DataSource.
What I'm not sure how to do is Step 2 or whats the best way.  How do I call the Insertcommand programmatically for a DataSource?  Or, is there a better way such as some kind of traditional hardwired SQL insert statement like in classical ASP?  Or is there a way to programmatically call a stored procedure and if so is the 3rd approach the best way?
 
How exactly would someone do this best?  It seems this would be a rather common thing someone might need to do.

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Jul 14, 2004

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If I have 2 tables linked (by Foreign Key):
One table:

ITEM idITEM NAMEITEM CATEGORY (FK)
1cheese 2

And another:

Category IDCATEGORY NAME
1 household
2 food
3 general

How do I enter the load of data
Do I have to enter it as
1cheese2
or is there some way of entering it as
1cheesefood

TDS wizard does not allow me to transfer to views/querries what I thought would be a normal way as I would enter data to view(relevant to Access's form) and it would update related tables . When I wrote sql to do it it said I can not update my view table as too many tables would be affected(I had lookup tables empty then though)
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Sep 16, 2005

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Jan 11, 2006

Hey guys,
I have created an asp.net page where users can select multiple items and then submit the form.  I would like to return related items back.  The catch is, I want to only return items that are related to all of the selected items.
I've created a SQL Procedure that puts each of the inputted item's ItemId in to a temp table, I have a second table called RelatedItems which I use as my junction table that has ItemId, and ReleatedItemId, I then have my Item table that has the data I want to get to (I've excluded this because I have no trouble pulling out data once I have an ItemId)
I can pull out all related ItemIds with a simple join, however I don't know where to start when it comes to pulling out only items related to all ItemIds in the @TempTable.
Any help or suggestions would be great.
Thanks,
Matt

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Inserting Data Into Multiple Related Tables

Jun 18, 2007

Hey guys up until now i've only inserted data into a single table. Now I have a form that collects information over a span of three forms. Each form has a table related to it and these three tables are related to each other.

What I want to know is:
1)How do you go abouts inserting data into multiple related tables that have constraints on them?

2)Would you use a stored procedure in an instance like this?

3)At what stage would you execute the sql queries. I assume you do this once you have collected all the required information as opposed to: Enter info into form1, submit form1 data to database... enter info into form2, submit form2 data into database etc

Any help would be greatly appreciated!

Say for instance I have three related tables.

table1
------
tbl1_id
tbl1_data1
tbl1_data2

table2
------
tbl2_id
tbl2_data1
tbl2_data2

table3
------
tbl3_id
tbl3_data1
tbl3_data2

table1 has a one-to-many relationship with table2
table3 has a one-to-one relationship with table2

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Nov 23, 2005

Hello sirWe have a very huge database its around 6 lakh recordsare being stored in it.records are not being a sorted order so we checked allrecord field through clustering option in Sql server.when we usedclustering records are showing in sorted order but speed of database isvery slow .i want to know with clustering is there any implecation in databaseregading performance od data.Can any one give his views to solve thisproblem?and increase the performance of our database.thanks a lot

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Dec 27, 2007

I have a query/report that I need to create that needs to look at the size of a company and based on that size apply different rules. I am sure that this is not the only query/report I'll need to do using this and I'm also not so sure that the size ranges won't be changed in the future. Given this, I'd like to store the size ranges in a lookup(global) table. That way, if the ranges ever change I can just alter them in that table and not in all of the queries/reports that use them. What I need to figure out is how to join the live table with the look up table.

Specifically, here is what I have. The look up table would be:




Code Block
CREATE TABLE #gl_sizerange (
glsid int IDENTITY(1,1) NOT NULL,
lowsize int,
highsize int,
sizecat varchar(10),
milestone varchar(25),
days int
) ON [PRIMARY]
INSERT into #gl_sizerange VALUES(1, 24, 'Small', 'Approach', 14)
INSERT into #gl_sizerange VALUES(1, 24, 'Small', 'Interview', 14)
INSERT into #gl_sizerange VALUES(1, 24, 'Small', 'Demonstrate', 21)
INSERT into #gl_sizerange VALUES(1, 24, 'Small', 'Negotiate', 14)
INSERT into #gl_sizerange VALUES(1, 24, 'Small', 'Close', 7)
INSERT into #gl_sizerange VALUES(25, 99, 'Medium', 'Approach', 14)
INSERT into #gl_sizerange VALUES(25, 99, 'Medium', 'Interview', 21)
INSERT into #gl_sizerange VALUES(25, 99, 'Medium', 'Demonstrate', 21)
INSERT into #gl_sizerange VALUES(25, 99, 'Medium', 'Negotiate', 14)
INSERT into #gl_sizerange VALUES(25, 99, 'Medium', 'Close', 7)
INSERT into #gl_sizerange VALUES(100, 499, 'Large', 'Approach', 14)
INSERT into #gl_sizerange VALUES(100, 499, 'Large', 'Interview', 21)
INSERT into #gl_sizerange VALUES(100, 499, 'Large', 'Demonstrate', 21)
INSERT into #gl_sizerange VALUES(100, 499, 'Large', 'Negotiate', 14)
INSERT into #gl_sizerange VALUES(100, 499, 'Large', 'Close', 7)
INSERT into #gl_sizerange VALUES(500, 300000000, 'Super', 'Approach', 28)
INSERT into #gl_sizerange VALUES(500, 300000000, 'Super', 'Interview', 35)
INSERT into #gl_sizerange VALUES(500, 300000000, 'Super', 'Demonstrate', 28)
INSERT into #gl_sizerange VALUES(500, 300000000, 'Super', 'Negotiate', 35)
INSERT into #gl_sizerange VALUES(500, 300000000, 'Super', 'Close', 35)




Then what I have is two more tables, one that indicates the size of the company and another that has the milestone contained within it and I will also calculate how long that milestone has been open and if it is longer than what is in the lookup table for that milestone and size range I need it returned in the report. Here are some quick sample table to represent that data (I've condensed the size and number of tables for the example):




Code Block
CREATE TABLE #en_entity (
enid int NOT NULL,
orgsize int,
) ON [PRIMARY]

INSERT into #en_entity VALUES(1, 5)
INSERT into #en_entity VALUES(2, 18)
INSERT into #en_entity VALUES(3, 24)
INSERT into #en_entity VALUES(4, 25)
INSERT into #en_entity VALUES(5, 47)
INSERT into #en_entity VALUES(6, 101)
INSERT into #en_entity VALUES(7, 499)
INSERT into #en_entity VALUES(8, 500)
INSERT into #en_entity VALUES(9, 10000)
INSERT into #en_entity VALUES(10, 567890)
CREATE TABLE #op_opportunity (
opid int NOT NULL,
enid int NOT NULL,
milestone varchar(25),
daysopen int
) ON [PRIMARY]
INSERT into #op_opportunity VALUES(1, 1, 'Approach', 5)
INSERT into #op_opportunity VALUES(2, 2, 'Interview', 18)
INSERT into #op_opportunity VALUES(3, 4, 'Negotiate', 24)
INSERT into #op_opportunity VALUES(4, 7, 'Demonstrate', 25)
INSERT into #op_opportunity VALUES(5, 7, 'Approach', 7)
INSERT into #op_opportunity VALUES(6, 9, 'Close', 35)
INSERT into #op_opportunity VALUES(7, 8, 'Close', 36)






So, given the sample data, I would expect the results to return me the following opids from the #op_opportunity table because they don't comply with what is in the look up table based on milestone, size and days open: 2,3,4,7

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Dec 5, 2007

Does anyone know how I can do this?
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Basically I want to import all the (INV DETAILS) rows that have the same (INVNUM) as the (INVHEADER) but don't know how to do this.
I could use a join on the source tables but how would I direct specific columns to 2 different destinations?
Any help on this would be great and appreciated.
Thanks

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May 8, 2008

Hi all!

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The scenario (keeping it simple)

I have a list of departments. Each department can have multiple costs attached to it. The cost happens on a specific date. Fairly straightforward and simplified

I want to view each departments costs, sorted by month, like this:


Jan - Feb - March - April....
Dep SUM COST

Dep FOR EACH MONTH
Dep
Dep

...
...

I did this in the old report by passing the department ID and the date interval as parameters to a subreport and have the subreport return the sum of all the fields, which worked fine.

Now that the subreports can no longer be used, I'm struggling on how to sort my output on that date interval. I can group my result pr. department, but how to filter the result so that I get the right numbers in the right month... no luck yet.

As far as I know; I can't use different datasets in one table? I could have made a different dataset for each month...

Anyone know of a way to design this? I'm sure the problem isn't unique.
Does one have to aggregate the sums inside the SQL query instead?

Thanks for any replies!

Regards,
Mats

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May 4, 2007

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Jan 29, 2008

Hi,
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Unable to find nongeneric method...
I've try to create an Update query into my table adapters but still not working with this one
Also, try to remove the original_{0} and got the same error...
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Thanks

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Apr 4, 2007

hi friends,
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..can anyone suggest me how to retrieve data for current week , for a related item
thanks in advance
i need urgent help.

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Where Description value comes from the value of AllDome/ITEM/Dome /Description whose Dome equals to IndustryDome value

EX:
1166586 3951LX01 Description10

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[Code] ....

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Apr 1, 2015

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Apr 27, 2008

Is there a way to build a select statement that will output related rows with different column data per row? I want to return something like:


rowtype| ID | value
A | 123 | alpha
B | 123 | beta
C | 123 | delta
A | 124 | some val
B | 124 | some val 2
C | 124 | some val 3
etc...

where for each ID, I have 3 rows that are associated with it and with different corresponding values.

I'm thinking that I will have to build a temp table/cursor that will get all the ID data and then loop through it to insert each rowtype data into another temp table.

i.e. each ID iteration will do something like:
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insert into #someTempTable (rowtype, ID, value) values ('B', 123, 'beta')
insert into #someTempTable (rowtype, ID, value) values ('C', 123, 'delta')
etc..

After my loop, I will just do a select * from #someTempTable

Is there a better, more elegant way instead of using two temp tables? I am using MSSQL 2005

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SELECT *
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'Employees'

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Mar 2, 2004

I have a large SQL Database im building, in the database there is a table for each user with certain things listed. One problem is, sometimes in a few collums, there will be like 100things listed, instead of one line.


For Example:

Products in that some users will have 1 product like "apples" but others will have many more products.

What is the most effective way of listing the data? Create new tables? Seperate the products with comma's or spaces?


How do I do it, and keep the overall db size smaller?

Thanks

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Jan 11, 2008

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After trying lots and lots of things and navigating my way through the internals of System.Data.SqlServerCe.dll, I discovered that the method System.Data.SqlServerCe.SqlCeCommand.CreateParameterAccessor(...) has a bug.

The bug is that the private arrays "parameters" and "metadata" are ordered differently, yet at one point in CreateParameterAccessor(...) they are compared using the same index. Here are the two lines:
p = this.parameters[ i ];
and
MetaData info = metadata[ i ]
and then the column data types of "info" & "p" are incorrectly compared in a later method, ValidateDataConversion(...).

So take a step back... how are they ordered differently? From observation, I concluded the following:
The "parameters" array is ordered exactly in the order that the DbParameter's were added to the DbCommand object.
The "metadata" array is ordered according to the column order of the table in the database.


So what causes the exception? Well, CreateParameterAccessor(...) passes data types from two different columns (one type taken from parameters[ i ] and the other from metadata[ i ]) on to SqlCeType.ValidateDataConversion(...). And, of course, if they differ (e.g. one column is of type DateTime and the other is a SmallInt), an exception is thrown.
I've found two workarounds, and both seem to work well.
The first is to name the SqlCeParameters (e.g. "SELECT ... WHERE id=@id"). This causes the buggy branch of code to be completely bypassed.

The second is to add the SqlCeParameters in the exact same order as the columns exist in the table you are accessing. Note, I do *not* mean the order that you select the columns (e.g. "SELECT column1, column2, ..."). I mean the actual order of the columns in the database.

I've included my setup and a stack trace below to help if it can.

My setup is:
.Net CF 3.5
SqlServer CE 3.5
Visual Studio 2008
Deployed to Pocket PC 2003

Here is the stack trace (note the variables passed to ValidateDataConversion):

System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeType.ValidateDataConversion(System.Data.SqlDbType expectedType = DateTime, System.Data.SqlDbType actualType = SmallInt) + 0x4a bytes
System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeCommand.CreateParameterAccessor(System.Data.SqlServerCe.MetaData[] metadata = {System.Data.SqlServerCe.MetaData[34]}) + 0x89 bytes
System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeCommand.CreateDataBindings() + 0x5e bytes
System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeCommand.CompileQueryPlan() + 0x16f bytes
System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeCommand.ExecuteCommand(System.Data.CommandBehavior behavior = Default, string method = "ExecuteNonQuery", System.Data.SqlServerCe.ResultSetOptions options = None) + 0xa7 bytes
System.Data.SqlServerCe.dll!System.Data.SqlServerCe.SqlCeCommand.ExecuteNonQuery() + 0x7 bytes

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Method Or Data Member Not Found Am I Missing A Ref Lib?

Mar 25, 1999

Below is code that I have aquired from both the SQL6.5 Books online and a VB5 book. The problem is that when I run this code it returns back the error Method or data member not found. OK I have been to Projects References and made sure that both the Microsoft RemoteData object 2.0 and Remotedata control 2.0 where both included in my project.

The Remotedata control works great, however it does not allow me to Add data and Remove Data.

Am I missing a Reference file?
Do I have the correct version of Remotedata objects?


Private Sub Command1_Click()

Dim cn As rdoConnection

Set cn = rdoEngine.rdoenviroments(0).OpenConnection("sqlser ver")

Dim mysql As String
mysql = "select cuscode from customer where cuscode = '1122'"
Dim myqy As rdoQuery
Set myqy = cn.CreateQuery("myqy1", "")

myqy.SQL = mysql

Dim myrs As rdoResultset

Set myrs = myqy.OpenResultset(rdopenfowardonly, _
rdConcurReadOnly)

While Not myrs.EOF
Debug.Print myrs(0)
myrs.MoveNext

Wend

myrs.Close
myqy.Close




End Sub


Thanks in advance.


LoPingKill
loping@inlink.com

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Best Method To Display Data On Intranet Of Company

Feb 16, 2004

Hi

Whats the best way to display data on company intranet or web
where they can make little choices also ( say between date so and so)
some thing like a report, with charts etc
with some graphical easy to learn language

I have strong knowledge of SQL and ok with HTML

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