hey i was just wondering how to display the constraints from a particular table and display all the constraints and wat columns they apply to, someone told me they keyword u use but didnt tell me how to use it :P
View 5 RepliesI want to make a copy of a table and this table has several constraints and
I would like to keep all of them
How should I do it? Thank you
Trying to get all the constraints for particular Tables in my database. I try:
SELECT constraint_name, constraint_type FROM INFORMATION_SCHEMA.TABLE_CONSTRAINTS
and getting nada?
Three tables (all new, no data) will receive data from dBase and betransposed into them...All three have auto generated IDENTITY columnsand pk and fk constraints. Can someone provide me with anunderstandible sample?Thanks,Trint
View 3 Replies View RelatedDear Experts,When I use a single table I can easily use constraints to enforce mybusiness logic, but what do I do when I normalize a single table intomultiple tables.For example, imagine that my initial table has the columns ID, Name,Salary with the constraint that Salary is not NULL. Now imagine thatI break this into two tables, one with ID and Name and another with IDand Salary. I would like to have a constraint that prevents thecreation of a row with (ID,Name) in the first table unless acorresponding row in the second table is also created.I can enforce this logic with triggers, but it looks ugly and isfairly brittle. Is there a better way or is this the dark side ofnormalization?Thanks.
View 6 Replies View RelatedIs there a way to create tables on the sql ce db that matches the tables I'm pulling from the main sql server?
example;
if I do a pull from Customers and ID is a primary key, how can i create this table on my handheld and have the ID set to primary key as well?
I want to do this on all my tables I need to pull from and create on my sql ce db
Any script out there for disabling all the constraints on all the tables in a database?
Since there are more than 100 tables I need to import the data into, is there any generic script that I can use to disable all the constraints and triggers etc on all the tables?
Thanks,
I am hoping someone can help me on this. I have lost the ability to see tables in one database. I can see views and have full access rights on this database. I was trying to install OLAP Analysis on my PC and suddenly I lost this capability on one of the databases I access. Any thoughts? I have looked at everything I can find trying to fix this. Have re-installed and even cleared my user and re-added. It is something on my PC alone since it also affects anyone who signs on to my box.
View 14 Replies View RelatedGuys,
I have 600 tables in my database, out of which 40 tables are look up value tables. I want generate truncate scripts which truncates all the tables in order of Parent child relationship excluding lookup tables. Is there any way to do this apart from figuring out Parent Child relationship and then writing the truncate statements for each of the table.
For example
EmployeeDetail table references Employee table
DepartmentDetail table references Department table
Department table references Employee table
My truncate script should be
TRUNCATE TABLE DEPARTMENTDETAIL
TRUNCATE TABLE EMPLOYEEDETAIL
TRUNCATE TABLE DEPARTMENT
TRUNCATE TABLE EMPLOYEE
Is there any automated way to figure out parent and child tables and generate truncate script for the same.
Thanks
Hi,
I have created a new reports application project in VS 2008. I have a dataset with 2 tables: Customer and CustomerAddress with one to many relationship. I want to have a simple table in my report which displays data in the following format:
Customer Name Address
----------------------------------------------------------
ABC Add1
ABC Add2
XYZ Add1
XYZ Add2
Here Address is obviously from CustomerAddress table. I have tried few options but it's mainly disgusting to work with Reports Application project when there was an amazing Busines Intelligence Reports project available in VS 2005 and equally good designer interface (Dataset, Design and Preview tabs for each report).
Please give me a solution to this.
Shyam
Hey there,
Trying to build a temporary table based on a parent table such that:select * into #staging from tbl_parent where 1=0
The temp table (#staging) picks up any NOT NULL constraints from the parent (tbl_parent) table and frankly, it doesn't meet my needs.I also tried to build a view of the parent (tbl_parent) table from which to base my SELECT INTO and still, the constraints followed.
I'm thinking perhaps it possble to iterate though the temp table using syscolumns sysobjects and and set the column NULL properties on the temp table AFTER its been created but in this approach, I'm working to avoid directly referencing the columns by name.
Is this possible? A better answer perhaps?
Purpose of exercie is to populate a record in memory before it hits the table.I'll be constructing the record on the fly so that at first, I won't have all the fields to de-Null the columns.Also, I don't wish to lose the fact that some of my fields are Null - once I've fully populated my temp record, I'll insert into my 'real' table and will depend on constraints to throw the appropriate error. In this I won't have to built custom error checking in the stored procedure itself but instead depend on SQL SERVERS built capacity to the throw the error. This opens a bunch of possibilities for extensibility since if at a later date a constraint rule changes, one need only change the parent table definition rather than cracking open the stored procedure.
Thank you for reading and a big thanks to you for replying :)
Also,
Ok, I'm fairly new to .NET and even newer to the whole database concept. But, don't run away yet, I'm no idiot and I shouldn't have too hard of a time understanding your responses if you're kind of enough to give them. That being said, here's my dilemma:I'm trying to make a database of all the movies I own, the actors in them and the genre (s) they belong to. I have a set of tables that are in the 2NF (I think). I have a movies table, an actors table, a genres table, and two tables called movies_actors and movies_genres with primary-foreign key relationships to pull it all together (e.g. movie_id 1 has two entries in movies_genres, one for Action and one for Drama). My problem arises that when execute my monster query to pull ALL the data on one movie, I get a row returned for every combination of Genres and Actors in a movie. Example:movie_id movie_title comments actor_first actor_last genre_name1 Casino blah blah Robert DeNiro Action1 Casino blah blah Robert DeNiro Drama1 Casino blah blah Joe Pesci Action1 Casino blah blah Joe Pesci Drama And here's the query that produced that:1 SELECT movies.movie_title, movies.comments, actors.actor_first,
2 actors.actor_last, genres.genre_name
3 FROM movies INNER JOIN movies_actors ON movies.movie_id = movies_actors.movie_id
4 INNER JOIN actors ON movies_actors.actor_id = actors.actor_id
5 INNER JOIN movies_genres ON movies_genres.movie_id = movies.movie_id
6 INNER JOIN genres ON movies_genres.genre_id = genres.genre_id
So, I want to put all the actors for one movie into the same cell in the datagrid (same with the genres) and still keep it sortable by actor or genre. Is this possible with the .NET 2.0 datagrid? Do I have some fundamental misunderstanding of how my tables should be structured? Am I just really far off and acting like a n00b?
Hi all,
I have the following tables
Tbl_Request
------------------------------------------------------------------------------------
RequestType NoOfPositionsRequired SkillCategory
Req1 10 .Net
Req2 3 Java
Req1 2 SQL
Req3 5 Java
----------------------------------------------------------------------------------
Tbl_User
------------------------------------------------------
ID SkillCategory Experienced
-----------------------------------------------------
101 Java 0
102 .Net 1
103 Java 1
104 SQL 1
105 .Net 0
106 J2EE 0
---------------------------------------------------
Experience is a bool column.
Required Output:
---------------------------------------------------------------------------------------------------------------------------------
SkillCategory Req1 Req2 Req3 TotalDemand Exp NonExp Total Supply
---------------------------------------------------------------------------------------------------------------------------------
.Net 12 0 0 12 1 1 2
Java 0 3 5 8 1 2 2
SQL 1 0 0 1 1 0 1
----------------------------------------------------------------------------------------------------------------------------------
Well the first half of it I am able to retrieve meaning the 'Demand' part by pivoting it from the table request and the next part i.e. 'Supply' is also obtained in the similar fashion.
Tbl_User may contain more skill categories than those mentioned in Tbl_Request. So the output should reflect only those categories that are existing in tbl_Request. How can we combine the both? I have taken both the outputs in two temp tables. Now I would like to know if I can combine them and show it as one output or if there is any other better way of doing it.
I am using a stored procedure which is called for my web application so I didn't go for views. Can someone tell me how to do it.
Any tool, script, procedure, or otherwise that will solve this problem?
CREATE TABLE [Table 1] (
Id varchar,
TableTwoId varchar,
OtherData varchar )
CREATE TABLE [Table 2] (
Id varchar,
MoreData varchar )
What is the link between these two tables?
I have databases that have zero keys defined, no foreign key constraints, no unique value constraints. I cannot assume that an Identity column is the Id. The end game is be able to output that [Table 1].[TableTwoId] = [Table 2].[Id] but cannot assume that all linkage in the database will be as simple as saying "if the field name contains a table name + Id then it is the Id in that table."
Currently have written a script that will cycle through all columns and start identifying keys in singular tables based on the distinctness of the values in each column (i.e. Column1 is 99% distinct so is the unique value). It will also combine columns if the linkage is the combination of one or more columns from Table 1 = the same number of columns in Table 2. This takes a long time, and it somewhat unreliable as IDENTITY columns may seem to relate to one another when they don't.
CREATE TABLE [Table 1] (
Id varchar,
TableTwoId varchar,
OtherData varchar )
CREATE TABLE [Table 2] (
Id varchar,
MoreData varchar )
What is the link between these two tables?
I have databases that have zero keys defined, no foreign key constraints, no unique value constraints. I cannot assume that an Identity column is the Id. The end game is be able to output that [Table 1].[TableTwoId] = [Table 2].[Id] but cannot assume that all linkage in the database will be as simple as saying "if the field name contains a table name + Id then it is the Id in that table."
Currently have written a script that will cycle through all columns and start identifying keys in singular tables based on the distinctness of the values in each column (i.e. Column1 is 99% distinct so is the unique value). It will also combine columns if the linkage is the combination of one or more columns from Table 1 = the same number of columns in Table 2. This takes a long time, and it somewhat unreliable as IDENTITY columns may seem to relate to one another when they don't.
i have such a error in my sql server db
i examined arabic_ci_as and SQL_Latin1_General_CP1256_CI_AS
but in my web pages that uses utf-8 codepage that retrieves data using ado and asp scripting the ouput or inserted that dispalyed in both of query analyzer and Enterprise manager replaces or display '?????' for characters .
i am using nchar and nvarchar and ntext
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.
Hello.
I just created separate tables for each of my categories and wanted to know how to return them all to be viewed on one page using the SQL Datasource (or whatever) This is for user accounts. I just need to know that part.
Sincerely,
Computergirl
I need help in writing a query.
The query should get top 10 items and their values from current year and the values for the same items from previous year table.
I was able to write the code for 1st part that gets values from 1st table but I don't know how to get the values from 2nd table.
The 2 tables does not have any primary/foreign key relations. Both tables have same structure and same columns.
I am attaching some images below to give more information.
Image of results from my query.
Image of how the final output should look like.
The Store Procedure code is:
ALTER Procedure [dbo].[free_customsHS4](
@TblName1 varchar(20),
@TblType varchar(20),
@District varchar(6),
@Month varchar(3)
)
AS
Begin
SET NOCOUNT ON;
Declare @SQuery nvarchar(3000)
set @TblName1 = '[' + @TblName1 + ']'
set @TblType = '[' + @TblType + ']'
SELECT @SQuery = 'select top 10 a.commodity1 as HS4, b.descrip_1 as Description,
sum(a.all_val_mo) as [Amount],
(sum(a.all_val_mo)/(select Sum(a.all_val_mo) FROM ' + @TblName1 + 'a
where a.stat_month <=' + @Month + ' and a.district=' + @District +'))*100 as [% Share]
FROM ' + @TblName1 + ' a left outer join ' + @TblType + ' b on a.commodity1=b.commodity1
where a.stat_month <=' + @Month + ' and a.district=' + @District +'
Group by a.commodity1, b.descrip_1
order by [Amount] desc'
EXEC sp_executesql @SQuery
END
I am using the "Transfer SQL Server Objects Task" to copy some tables from database A to database B including data.
The tables, primary key constraints, Foreign key, data and all transfers nicely except for "DEFAULT CONSTRAINTS" on the tables.
I have failed to find any option in the "Transfer SQL Server Objects Task" task to explicitly say "copy default constraints". So I guess logically it should happen automatically but it doesn't. I hope it is not a bug :-)
Any option anyone knows will help.
Thanks.
I used to do this with classic asp but I'm not sure how to do it with .net.Basically I would take a table of Categories, Then I would loop through those. Within each loop I would call another stored procedure to get each item in that Category. I'll try to explain, Lets say category 2 has a player Reggie Bush and a player Drew Brees, and category 5 has Michael Vick, but the other categories have no items.Just for an example.. Category Table: ID Category1 Saints2 Falcons3 Bucaneers4 Chargers5 FalconsPlayer Table:ID CategoryID Player News Player Last Updated1 1 Reggie Bush Poetry in motion 9/21/20062 1 Drew Brees What shoulder injury? 9/18/20063 5 Michael Vick Break a leg, seriously. 9/20/2006 Basically I would need to display on a page:SaintsReggie BushPoetry in MotionFalconsMichael VickBreak a leg, seriously.So that the Drew Brees update doesnt display, only the Reggie Bush one, which is the latest.I have my stored procedures put together to do this. I just don't know how to loop through and display it on a page. Right now I have two datareaders in the code behind but ideally something like this, I would think the code would go on the page itself, around the html.
View 1 Replies View RelatedI'm using MS SQL 2000 with enterprise manager I have a customers table called high_customer, it has a primary key called IDI have an invoices table called high_invoices, it has no primary keys but it does have a column for customer ID.I want to set it so if a customer is deleted from the customers table, any invoices with that customerID are deleted from the invoices table.Do I need to specify a constraint? If so how do I do it in enterprise manager.Thanks
View 1 Replies View RelatedHi,
I have the following problem:
I have a table called Jobs with the fields:
JobNumber, Name, Customer, ...
And a table called Customers with the fields:
ID, Name, Address, ...
Obviously Jobs is linked to Customers with the Customer<->ID fields. I want to set it up so that if a Customer is deleted, then any Jobs that had that customer listed now have the Customer field set to NULL. Can I do this with a constraint, or will I need to use a trigger?
Cheers,Little'un
Hello,
I am not a DBA and I need to do the following.
I have 2 tables A and C and both have a common fileds say emp.Emp is pkey in C .
There can be a record in C but not in A.If a record is inserted in A then it checks for the same employee info in C .If not found it do not allow to insert a record in A.
How to go for it?
Thanks!
Hiya peops!!
Listen i was wondering if anyone could tell me whether they know the correct syntax for creating constraints or where i could find it on the net???
Thanks
Hiya peops
im creating a constraint using enterprise manager for 1 of my tables n was wondering how u constructively create a constraint expression, there is a specific style,right??
Thanks
hi there,
i have added my tables and defined foreig keys and primary keys for my table, but when i try to put the data it gives me some error reagards to parent key..and it wont let me drop the table... can anybody tell me how to drop the foregin key..i have tried (
ALTER TABLE module DROP CONSTRAINT ATTENDANCEID_FK;)
this formula and it wont work,
heres my tables and relationships:
CREATE TABLE ATTENDANCE
(ATTENDANCEID char(4) NOT NULL,
StudID char(4) NOT NULL,
ModuleID char(4) NOT NULL,
Week1 VARCHAR(10),
Week2 VARCHAR(10),
Week3 VARCHAR(10),
Week4 VARCHAR(10),
Week5 VARCHAR(10),
Week6 VARCHAR(10),
PRIMARY KEY (ATTENDANCEID));
ALTER TABLE ATTENDANCE
ADD FOREIGN KEY (studID) REFERENCES student(studID);
ALTER TABLE ATTENDANCE
FOREIGN KEY (moduleID) REFERENCES module(moduleID));
insert into ATTENDANCE values
('F1','A1','E1','Yes','Yes','Yes','Yes','Yes','Yes');
insert into ATTENDANCE values
('F2','A2','E2','Yes','No','Yes','Yes','No','Yes');
insert into ATTENDANCE values
('F3','A3','E2','Yes','Yes','Yes','No','Yes','Yes');
insert into ATTENDANCE values
('F4','A4','E2','Yes','Yes','Yes','Yes','No','Yes');
insert into ATTENDANCE values
('F5','A5','E1''Yes','Yes','No','Yes','Yes','Yes');
insert into ATTENDANCE values
('F6','A6','E2','Yes','Yes','Yes','Yes','Yes','No');
insert into ATTENDANCE values
('F7','A7','E1','Yes','Yes','Yes','Yes','No','No');
insert into ATTENDANCE values
('F8','A8','E2','Yes','Yes','Yes','No','Yes','Yes');
insert into ATTENDANCE values
('F9','A9','E3','Yes','Yes','No','Yes','Yes','Yes');
CREATE TABLE MODULE
(ModuleID char(4) NOT NULL,
ATTENDANCEID char(4) NOT NULL,
ModuleName varchar(45),
ModuleCode varchar(6),
PRIMARY KEY (ModuleID));
ALTER TABLE MODULE
ADD FOREIGN KEY (attendanceID) REFERENCES attendance(attendanceID);
insert into MODULE values
('E1','F1','Workshop Research and Project Implementation','Im3023');
insert into MODULE values
('E2','F2','Advanced Database Development','SD3042');
insert into MODULE values
('E3','F3','Advacned Information Systems Develpment','SD3043');
charles
I am fairly new at SQL and also new to this forum. So I don't know if this topic belongs here or not.
But anyways, I found this tutorial online. However, I am having trouble completing it. Can someone please help me?
Given the following table definitions:
CREATE TABLE USERS
(
USERID CHAR(5) PRIMARY KEY,
NAME VARCHAR(30),
RATING CHAR(1) CHECK (RATING IN (A, B,C,D)
)
CREATE TABLE ITEMS
(
ITEM_NO NUMBER PRIMARY KEY,
DESCRIPTION VARCHAR(50),
OFFERED_BY CHAR(5) REFERENCES USERS(USERID) ON UPDATE CASCADE ON DELETE CASCADE,
START_DATE DATETIME,
END_DATE DATETIME,
RESERVE_PRICE NUMBER
)
CREATE TABLE BIDS
(
USERID CHAR(5) REFERENCES USERS ON UPDATE CASCADE ON DELETE SET NULL,
ITEMNO NUMBER REFERENCES ITEMS(ITEM_NO) ON UPDATE CASCADE ON DELETE CASCADE,
BID NUMBER,
BID_DATE DATETIME,
PRIMARY KEY(USERID,ITEMNO,BID_DATE)
)
Directions: Indicate whether the statement is accepted or rejected; and if accepted indicate its effects. Evaluate each statement INDEPENDENTLY.
1) INSERT INTO ITEMS VALUES(1009, Red Bicycle,U01,1999-01-08, 1999-02-10, 30)
2) UPDATE ITEMS SET ITEMNO=1008 where ITEMNO=1001
3) DELETE FROM ITEMS WHERE ITEMNO=1005
4) INSERT INTO ITEMS VALUES(1010, Green Bicycle,U07,1999-01-08, 1999-02-10, 30)
5) UPDATE BIDS SET ITEMNO=1011 WHERE ITEMNO = 1001
6) DELETE FROM USERS WHERE USERID=U01
7) UPDATE ITEMS SET ITEMNO=1020 WHERE ITEMNO=1001
8) DELETE FROM BIDS WHERE BID > 1001
Thanks. I would greatly appreciate your help.
My table structure is something like this :
ORDER_ITEM (OrderSK, ItemNumber, Qty, ServiceSK, UnitPrice)
SERVICE (ServiceSK, Description, UnitPrice)
How could I modify the database structure to enforce the data constraint that ORDER_ITEM.UnitPrice must be equal to SERVICE.UnitPrice for the corresponding service.
i have a question about constraints in SQL server.
i have three tables:
Client
---------
clientID
name
etc...
Bank
-------
BankID (a virtual number, identity)
ClientID (FK: Client)
BankAccountNumber
BankName
Order
--------
OrderID
ClientID
BankID
a Client an have one or more bankAccounts.. if he place an order, he can select wich bankaccount will be used to pay.
how do i have to set the constraints so that the bankAccount in Order, is allways of THAT client in order.???
Thanx...
I have to change someones username in my database in a couple of tables. When I try to make any changes, I get an error that there is a constraint. Is there a way to make the changes without removing all the constraints then replacing them?
Thanks
Hi,
Just getting into scripting sql. I have a little script that adds and drops a default value for a column. But I cannot get it to run when the column already has a default value specified. If I didn't script the contraint and specify a name I have no name to specify when trying to drop it.
ALTER TABLE users ADD CONSTRAINT dev1 DEFAULT 1 FOR ns_email_flag
ALTER TABLE users DROP CONSTRAINT dev1
How do I remove any existing default values using script?
TIA,
Seoras.