I am thrawn at the deep end
I have been given the task of moving certain tables (that have PK, FK Constraints) from an existing Database (A) to form another Database (B) but making sure all the references to other tables in the original DB (A) are not affected. I was talled that triggers can solve this but I am not sure where to start. The Question is what I am looking for to replace, and how ??
Please help !!!!!!
Saad
How does one know what a particular trigger or constraint is supposed to be doing on a table. I am just two days old on this position, and no form of documentation, at the same time I am expected to trouble-shoot some error messages. Thanks for your help.
View 3 Replies View RelatedWhat are triggers and constraints, if there is a quick answer? Does anyone know of a good ms sql book?
View 1 Replies View RelatedI have several sql server databases that were recently moved to a newserver. In the process of migrating the databases, any triggers andconstraints attached to tables were removed on accident. I need to addthese objects back into the databases, however I'm worried that I willhave problems with referential integrity since there is a chancesomeone may have deleted or updated a record that should have cascadedchanges to other tables but did not since the triggers and constraintswere missing. Is there an easy way to check for problems of thisnature in the databases?Also - I am planning on generating a script from the database on theold server that scripts the triggers and constraints, and then useQuery Analyser to run this script against the database on the newserver. Is this the best way to add these objects back into databasesthat are already populated with data and running on a live server?In in a pretty bad position, but at least these are databases that arenot accessed too frequently, so I'm hoping any referential integrityproblems will be minor.Any help or advice would be greatly appreciated.
View 1 Replies View RelatedI have a question concerning setting up data integrity checks in SQL Server.
I have a table that lists "Groups" to which an Entity belongs. The Entity can belong to multiple Groups. Every entity has 1 and only 1 of its Groups designated as the "Primary Group". Based on this, my table contains multiple records for each Entity. Each record describes 1 Group of which the Entity is a member. In this record, there is a bit field indicating whether the Group is the "Primary Group".
In other DBMS's I have implemented a check constraint on the "Primary Group" column to enforce the business rule that "a Entity may have one and only one Primary Group". I am aware now, that in SQL Server 7, I must implement this rule as a trigger, or in the client or data services layers.
Does anyone know if SQL Server 2000 will allow me to write such a check constraint?
Hi, I´m facing teh following situation:This are just sample table names, but should do for discussingpurpouses.Create table Invoice(InvoiceID Integer Not Null,CustomerType Integer Not Null,CustomerCode Integer Not Null,Amount DECIMAL(10,2) Not Null,.................)Create Table Type1Customer(CustomerCode Integer Not Null,...............................)Create Table Type2Customer(CustomerCode Integer Not Null,...............................)I need to add a way to restrict the CustomerType and CustomerCode,in the Invoice table to the correct values.This means that if customerType equals 1 the customerCode should bechecked against Type1Customer and if customerType equals 2 thecustomerCode should be checked against Type2Customer.I succesfully created a check constraint. That ensures that the validvalues exists when the rows in the Invoice table are inserted orupdated, but doesn´t prevent from deleting records from tablesType1Customer and Type2Customer that are referenced from the Invoicetable.Are triggers the only way to go?Thanks in advanceSebastián streiger
View 3 Replies View RelatedI created a snapshot replication and after the first replication process i didn't find the triggers and constraints on the subscription side. what happened ? did i do anything in bad or i can't replicate this objects? This necessary for me because i need to create a testdatabase about the production environment - periodically.
View 3 Replies View RelatedHi fellows,
I have to migrate all objects alogwith all constraints,SP,Triggers, indexes etc from Development instance to Production instance of a DB, all those things are created through wizard ie. Sql server 2000 Enterprise Manager. if i use DTS it only mirates data along with tables and views but constraints,SP,Triggers, indexes etc not yet copied.
can any body help me how can I solve this problem by copying all objects alogwith all constraints,SP,Triggers etc from Development instance to Production instance.
This is Sql server 2000 Cluster environment.
thanks in advance for any help
rahman
I know this is probably a flick of a switch but I cannot figure out which switch. Setup is SQL Server / Stored Procedures / DAL / BLL(skipped for testing) / PL. The stored procedure queries from only one table and two columns are ignored because they are being phased out. I can run the stored procedure and preview the data in the DAL but when I create a page with an ODS linked to the DAL and a GridView I get this error. I checked every column that does not allow nulls and they all have values. I checked unique columns (ID is the only unique and is Identity=Yes in the table definition). I checked foreign-key columns for values that are not in the foreign table and there are none. Any ideas why do I get this?
Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.
Hi,
I am getting the above error when trying to load a report into my Web Application, I have tracked the error down to one specific field in my database. Even though this field is a NVarChar field and is of size 30 it would seem that there is an issue returning the value from the field. I can write it into the database no problems but when I try to get it out of the database it returns the above error.
e.g
MOB 401.908.804 - Fails
0401.907.324 - okay
8239 9082 (pager) - fails
Anyone got an idea on how to fix this????
Regards..
Peter.
This isn€™t an problem as such, it€™s more of a debate.
If a table needs a number of update triggers which do differing tasks, should these triggers be separated out or encapsulated into one all encompassing trigger. Speaking in terms of performance, it doesn€™t make much of an improvement doing either depending upon the tasks performed. I was wondering in terms of maintenance and best practice etc. My view is that if the triggers do totally differing tasks they should be a trigger each on their own.
www.handleysonline.com
Hi, I'm trying to conver an Access database to SQL 7, but I can't find a easy way to replicate the aggregate function FIRST in SQL, can anyone give me some advise on how to "fake" the FIRST agg function in SQL7? Thanks
View 1 Replies View RelatedI am incorporating a perl script loading data into my SQL Server. If I receive a message with a single backslash I know to replace it with a double backslash \. But what if it is a " double quote what do I need to do to get it to appear as is?
Thanks
I want to replace the value in a column with the content from listbox.
I have wrote the code like,
Dim i as Integer
dim sql as string
For i = 0 to Customerslist1.ListCount-1
sql = "UPDATE master (gstl) VALUES(" +chrb(34)+Customerslist1.Cell(i,8)+chrb(34)+")"
app.Gudangstock.SQLExecute(sql)
app.Gudangstock.commit
next
msgbox"insert ok"
UpdateCustomerList1
but no error found and the sql command is not executing.
Nevil Mascarenhas writes "Hi SQL team,
I am just a beginer in SQL
Here is sample output of a SQL query
Alarm No Site Name Startdate Starttime
7767 ABC 20-08-05 00:00
7765 XYZ 20-08-05 00:00
7762 ASD
5453 QWE 22-08-05 01:00
In this above example, I would like to replace blank fields in Startdate and Starttime coloumn with XXX
Output required is
Alarm No Site Name Startdate Starttime
7767 ABC 20-08-05 00:00
7765 XYZ 20-08-05 00:00
7762 ASD XXX XXX
5453 QWE 22-08-05 01:00
Can you please guide me."
Hi i have 2 cols
col1 col2
A1 21
A2 22
A3 21
A4 23
I want to create a report such that i should see all values of col1 but in col2 i want to show only value of 21 and the remaining should be zero.
So basically all the other values except 21 should be zero in the report but should not be updated in the database.
So the report should look like
col1 col2
A1 21
A2 0
A3 21
A4 0
can you please tell me how to do that
Thanks
vic
Vicky
Hi,Is it possible to do from one script? We have a set of user's tables like"tbl%". We can get this list very easy using this script:SELECT name FROM sysobjects WHERE xtype = 'U' AND name LIKE 'tbl%' ORDER BYname;We need to change some column names if these names are in a special listthat we have. What can we do? Use FOR EACH ROW? Or what?So, I need to get a column list for each table and check if every columnname is equal to one of the names from the list and then if YES replace itby something or add some symbol to this name. Terrible or possible?Regards,Dmitri
View 4 Replies View RelatedHi
I have a table with column type as ntext. I need to modify the column value. I wanted to replace a given characterstring with another one in this column. Any assistance on this is highly appreciated.
Thanks!
Santhosh
Hi all,
We are trying to migrate a SQL Server 2005 database/schema onto SQL CE. The original SQL Server 2005 schema uses views. And VIEWs are not supported on SQL CE. What can we use as an alternative?
Here are the option I can think of:
Use Tables instead of views : We are currently using this approach. But the disadvantage is that data remains on the DB. We need to clean and reuse the table everytimeCan we use a DataSet or DataTable instead? Any sample code available?
Can we replace them by some in-memory data structure?
Hi all
I need to remove all the ' in a table and i am having some problems with the script, any help would be great
Thanks
Richard
Hi,
I would like to replace all instances of a code that starts with 'GEM' with the word 'Perfect'', and all instances of the code that starts with 'GOLD' replaced with 'Imperfect'.
For example, if I have a table named STONES, and a field within the table STONES.Code contained codes such as 'GEMPART4000', 'GEMPART5000', 'GOLDSIDE2300' and 'GOLDSIDE3000', I want to return the first two codes as the words 'Perfect' for each and the last two codes with the word 'Imperfect' for each.
Similarly, how would it be written so I could select a middle part of the code to use as the trigger to replace the code with something different, e.g. if I wanted to use the 'PART' from the first two codes?
I have discovered that the REPLACE and CASE functions don't work with % (so I am looking for any code that starts with what I stipulate but can end with anything (or using it on either side of the middle part of the code)).
Any help would really be appreciated please.
Hi Guys,
I am faced with a problem that is giving me headaches. I have t1, t2 and t3. I t1 I have students that have a reference to t2 which are the schools they belong to. The problem arises when I see that there is redundancy in t2. There more records for the same schools. This was posible in giving the same school (postcode and name make it the same school) a different ID. In t3 I removed these redundant schools by using fuzzy grouping.
My problem is I want to ensure that the students are put using the schools from t3 instead of t2. So what I need to do is is to replace the redundant id from t2 with the correct id from t3.
Please help. Thans in advance
I am trying to clean up an ugly query that's based on trying to find items that exist in one table but not the other.
My tables are like this:
ITEMSitemID,itemName,itemDescriptionetc...
ORDERITEMSOrderLineID,OrderID,itemID
ORDERSOrderID,OrderCompleted
Currently my query looks something like this:
Select Items.* from ITEMS where not exists (select 1 from ORDERITEMS inner join ORDERS on ORDERITEMS.OrderID = ORDERS.OrderID where ORDERITEMS.itemID=ITEMS.itemID and (ORDERS.OrderCompleted=1))
So this query is looking for ITEMS what don't have a corresponding entry in the ORDERITEMS table. As I understand it this is pretty inefficient as it is going to be executing the sub query in the Not Exists statement for each entry in the ITEMS table. Is the preferred method to do something along the lines of somehow making the sub query into a derived table and doing a left or right join?
Thanks for reading!
Ryan
Hi, below is the query that i use.update user set user_description=' "+ userDesc +" ' where user_id = 1;userDesc is the value taken from a textbox and is supposed to be used with the update query.userDesc = "kad'nsad'kasnd'nak";The quotes in userDesc is affecting the update. Is there anyway to replace quotes with ' using stringbuilder?
View 1 Replies View RelatedHi, I have the following query.
sql = "select firstname AS Expr1, lastname AS Expr2, status AS Expr3 from person order by lastname"
Status is either 0,1,2 or 3
How can I use the query to create "a temp Alias" for the query, so that there is a "temp Alias" AS Expr4, AS Expr5, AS Expr6 and AS Expr7.
So if status = 0 then Expr4 = "true" else false
So if status = 1 then Expr5 = "true" else false
So if status = 2 then Expr6 = "true" else false
So if status = 3 then Expr7 = "true" else false
So when the reader reads Expr4 its either true or false.
Is this possible i a query?
In an *existing* database, how would you remove the City column in the
Employees table, and put in the CityID key column from the Cities table
?
Hi,
how can I remove newline characters and tabs from a char field in sql.
We are directing the results from a query to an excel and having the newlines in one of the columns is messing up the whole output.
thanks
Zoey
Need to update data from one table with data from another table.
I'm very, very new to MS SQL Server
I have the following two tables.
First table
tblEmp
Field - empno
Second table
tbltemp
Field - oldempno
Field - newempno
tblemp.empno = tbltemp.oldemno
I need to replace the data in tblEmp.empno with tbltemp.newempno where tblemp.empno = tbltemp.oldempo.
Thank you.
Hi, and tanks for taking time to read this question. I am still a novice at SQL (Server 2000)programming.
Is there a way to replace the contents of a column of a table derivied from SELECT and WHERE statements?
For example,
SELECT * FROM table1
WHERE column1 = 'text'
and replace 'text' with say, 'newtext'
Any help would be appreciated!
Regards,
Chandran
I need to change the first digit (0) in a number, like 05678494 and replace it with 0046 so it would look like 00465678494 when it is done.
I have tried to use the REPLACE function without any success.
Can anyone help me?
I have a instance with many databases in it.
due to company/product name change,
I want to search for a string "xyz" in
database name,
table name,
column name,
stored procedure name
content of all stored procedures
and replace all of them with "abc" without affecting the databases an application.
Can u please help me with step by step guidance?
muralidaran r
I have a SQL table with 5000 rows in it. Some of the other SQL columns have different values but if I wanted to swap say 500 of the rows would it be something like
UPDATE Coupins
SET Name='test1,test2,test3'
WHERE Name='test4,test5,test6';
I need basically to swap the Name value of these without affecting any other values.
I've got a sproc that we are migrating from SS2K that uses the reserved keyword 'Pivot'. Best way to replace it. I think it is renameable until the select from TempDB (which is mysterious as I can't see a table in tempDB by that name!!) as below...
CREATE PROCEDURE [dbo].[sp_CreateXtab]
@select varchar(8000),
@sumfunc varchar(100),
@pivot varchar(100),
@table varchar(100),
@SQLOutput varchar(8000) OUTPUT
[code]....