What Is The System View For Master Keys
Nov 17, 2006What system view do i use to determine is a database has a master key?
Thanks,
Ed
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Max Number Of Database Master Keys?
Mar 9, 2007Is there max number of Database Master Keys that can be used in a single instance of SQL Server 2005?
If I have 12 unique client databases that all need a unique Database Master Key, can this be accomplished?
Thanks ALL!
SQL Server, Master Detail Without Foreign Keys
Mar 27, 2007As part of a project, I'm not allowed to use foreign keys, well can't. But I have a problem with this master detail relationship (and a very simple one too).
Tables to begin with:
Invoice:
invoiceid : bigint indentity autoincrement primarykey
Detail:
invoiceid: bigint - detailnumber:bigint - desc : char20
Okay - I want to set these two tables up such than when I create a new invoice, and subsequently get the new invoiceid, and I start to add detail records to the detail table, I want the detailnumber to autoincrement when I do an SQL Insert. Right now I have detailnumber as the primary key, so when you view the detail records, it looks like:
(invoiceid, detailnumber, desc) 1,1,text - 1,2,text - 1,3,text - 2,4, text on another invoice - 3,5, text
I want it to work like:
(invoiceid, detailnumber, desc) 1,1,text - 1,2,text - 1,3,text - 2,1, text on another invoice - 3,1, text
where the invoiceid and the detail number make up the primary key.
I seem to recall you could do this is PHP before it had foreign keys & such, and I'm completely drawing a blank on this. BTW - I'm using enterprise manager to set this up, but I can use QA with a sample script to acheive the same.
I realize this may be (and probably is) off-topic here, but I can't figure out where to ask.
Thanks in advance.
T-SQL (SS2K8) :: Combining Keys To Create A Master List?
Mar 5, 2014I am struggling trying to clean some data and identify duplicate records. I used fuzzy grouping in SSIS and provided back a series of groups. The issue is some of the individual records can appear in multiple groups (so in reality the groups should be combined). This is best explained with an example:
Original Data
key1 key2
647942600014
647942285437
2324662490640
2324662285437
2324662066128
2222 2285437
2222 1111111
9999 1111111
9999 2222222
Should look like:
22222600014
22222285437
22222490640
22222066128
22221111111
22222222222
I only choose 2222 as the surviving key because it was the smallest number. I really do not care which number remains as long as it is the same across.
I tried playing with self joins between the tables but have had no success.
I am using Sql Server 2008 and the number of records could 500K to 1MM.
Set Custom Identity Keys For Master Tables(auto-incrementing):
Jun 17, 2007I need some help for designing the IDs / Primary keys for some master tables in my database. Following are master tables. Client_Master, Buyer_Master & Seller_Master; I want to set Client_Id, Buyer_Id & Seller_Id as their respective primary keys and they should have following properties
Client_Id :- a) should be auto-incrementing value, b) unique & c)should be of the format – CLXXXXXX, where “CL” {Constant start characters} & “X” {any number 0-9}
Similarly::
Buyer_Id :- BYXXXXXX
Seller_Id :- SLXXXXXX
We are implementing the database in MS-SQL 2005 & MySQL
Can anyone help me find a solution to this, especially in MS-SQL.
Foreign Keys On System Tables
Jan 21, 2005I know altering the schema of system tables is a big no-no, but I was wondering if setting up a table that has foreign keys pointing to a system table is bad.
Basically what I'm refering to is in some cases I have CreationDate and CreatedBy fields in my tables that correspond to GETDATE() and USER_NAME() functions in insert statements....I want the CreatedBy field to be a valid SQL server DB username ... and not some unchecked string value (SYSNAME actually)
Question About Master System Database
Mar 28, 2007Hi, i use sql server 2005 express where i created several databases. When opening Management Studio, i can see, besides my databases, also Master, Model etc .. which manage the databases. Now i also use MDF files which are disseminated on the same server. I see that for one given user, there is also a Master, Model etc ... in c:document and settings hat user .....
My question is: are those local Master, Model etc ... related with the central Master, Model ... of the central database system or are they independant? What if i delete the MDF files and its related system files in c:.doc and settings.. ?
Thanks
How Do You Hide The Default System Databases (i.e., Master)?
Feb 5, 2001How do you hide the default system databases so that they cannot be viewed? Also when it it time for me to access them how do I unhide the databases?
View 1 Replies View RelatedHow To Query A View From The Master DB?
Apr 7, 2004Is there a way to access your views in x database from the master database?
I'm getting this error
Invalid object name 'v_StatisticsScalars'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'v_StatisticsScalars'.
Package With File System Task Doesn't Work Without Sensitive Data With User Keys
Dec 14, 2006This problem is a bit weird but I'm just wondering if anybody else experienced this.
I have a package that has file system tasks (copying dtsx files actually). Basically the package copies other packages to a pre-defined destination. Thing is, it only works if one of the packages it is configured to copy has some sort of sensitive data (e.g., a connectionstring with a password), otherwise it reports a success message on execution but doesn't actually do anything. I've checked the forcedexecutionresult and it is set to None for that matter.
Just wondering if anybody else experienced this problem and of course if there's a way to solve it.
Thanks.
Accidentally Populate Tables Into System Databases/master Database
Jul 31, 2007Hi,
I accidentally populate tables into System databases/master database. What should I do? Should I delete all the tables I populate in mster database?
Thank you very much!
Best Disaster Recovery Plan For System Databases(Master,MSDB...)
Nov 20, 2007Hi all
What is best Disaster/Recovery methode to securing the system databases.
Master database allows only Full backup
MSDB allows Full ,Diff
Cannot View Master.sysdatabase Names In Webpage
Jan 10, 2006I have a webpage that should display the database names from the master.sysdatabases in a dropdownlist.
The code for the stored procedure works fine in Query Analyzer and returns the list of all database names under that instance of SQL-Server 2000.
The code:
select name from master.dbo.sysdatabases order by 1doesn't return the sysdatabase names to the ASP.NET webpage when executing the stored procedure. It returns: System.Data.DataRowViewWhy does it do this and how can I fix it?Tx
How To Create A Minimal User In DB With No Access To View Master DB
Sep 11, 2007Hi,
We are using SQL Server 2005 Management Studio.
I created a Minimal User in an application DB. The user will access tables through stored procedures.
I do not want this user to view any other objects including objects in the Master DB.
I can prevent the minimal user from viewing objects from our application DB.
How do you prevent the minimal user from viewing objects in the Master DB?
Thanks.
Tim.
System/User View
Mar 7, 2005:confused: How can we determine which views in SQL-database is system or user, by making a query to any system tables?
Thanks in advance,
Jai
Trigger On System View
Mar 24, 2006Hi,
Is there a way to create a Trigger on the Systemview [sys].[dm_exec_connections] ?
The Statement below Fails.
CREATE TRIGGER [dbo].[TG_CLEAN_LOCK_ID] ON [sys].[dm_exec_connections]
AFTER DELETE
AS
I need a trigger to be fired when a Connection ([sys].[dm_exec_connections] .[connection_id]) drops.
Is it principally impossible to create a trigger on a system view or is it just a lack on permissions making my SQL fail?
Is there any other way for surveying wether a connection is alive or not, without polling?
Thanks in advance
Raimund
HOW Can You View Operating System Of The Sql Server 2k
Sep 19, 2006ARIAL
HOW can you view operating system of the sql server 2k??
How To Examine SQL Clause Of An System View
Apr 13, 2008
I'm having some difficulties getting sql server replication to properly filter joined tables to my subscribers. I would like to examine the contents of the view the system uses to select the data from my subsidary tables. Unfortunately these views are marked as system views, and I cannot view the underlying SQL clause.
I imagine this data is stored somewhere in yet another system table... does anyone know how I can examine the sql statement of a view that is marked as a 'system view'?
Thanks,
MD
How To Get Information From System Table Or View For Trigger's Definition
May 29, 2008Such as check all triggers that assign value to some columns ?
Thank you very much.
Creating Inter-table Relationships Using Primary Keys/Foreign Keys Problem
Apr 11, 2006Hello again,
I'm going through my tables and rewriting them so that I can create relationship-based constraints and create foreign keys among my tables. I didn't have a problem with a few of the tables but I seem to have come across a slightly confusing hiccup.
Here's the query for my Classes table:
Code:
CREATE TABLE Classes
(
class_id
INT
IDENTITY
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
class_title
VARCHAR(50)
NOT NULL,
class_grade
SMALLINT
NOT NULL
DEFAULT 6,
class_tardies
SMALLINT
NOT NULL
DEFAULT 0,
class_absences
SMALLINT
NOT NULL
DEFAULT 0,
CONSTRAINT Teacher_instructs_ClassFKIndex1 FOREIGN KEY (teacher_id)
REFERENCES Users (user_id)
)
This statement runs without problems and I Create the relationship with my Users table just fine, having renamed it to teacher_id. I have a 1:n relationship between users and tables AND an n:m relationship because a user can be a student or a teacher, the difference is one field, user_type, which denotes what type of user a person is. In any case, the relationship that's 1:n from users to classes is that of the teacher instructing the class. The problem exists when I run my query for the intermediary table between the class and the gradebook:
Code:
CREATE TABLE Classes_have_Grades
(
class_id
INT
PRIMARY KEY
NOT NULL,
teacher_id
INT
NOT NULL,
grade_id
INT
NOT NULL,
CONSTRAINT Grades_for_ClassesFKIndex1 FOREIGN KEY (grade_id)
REFERENCES Grades (grade_id),
CONSTRAINT Classes_have_gradesFKIndex2 FOREIGN KEY (class_id, teacher_id)
REFERENCES Classes (class_id, teacher_id)
)
Query Analyzer spits out: Quote: Originally Posted by Query Analyzer There are no primary or candidate keys in the referenced table 'Classes' that match the referencing column list in the foreign key 'Classes_have_gradesFKIndex2'. Now, I know in SQL Server 2000 you can only have one primary key. Does that mean I can have a multi-columned Primary key (which is in fact what I would like) or does that mean that just one field can be a primary key and that a table can have only the one primary key?
In addition, what is a "candidate" key? Will making the other fields "Candidate" keys solve my problem?
Thank you for your assistance.
Creating Indexes On Columns That Are Foreign Keys To Primary Keys Of Other Tables
Jul 16, 2014what the best practice is for creating indexes on columns that are foreign keys to the primary keys of other tables. For example:
[Schools] [Students]
---------------- -----------------
| SchoolId PK|<-. | StudentId PK|
| SchoolName | '--| SchoolId |
---------------- | StudentName |
-----------------
The foreign key above is as:
ALTER TABLE [Students] WITH CHECK ADD CONSTRAINT [FK_Students_Schools]
FOREIGN KEY([SchoolId]) REFERENCES [Schools] ([SchoolId])
What kind of index would ensure best performance for INSERTs/UPDATEs, so that SQL Server can most efficiently check the FK constraints? Would it be simply:
CREATE INDEX IX_Students_SchlId ON Students (SchoolId)
Or
CREATE INDEX IX_Students_SchlId ON Students (SchoolId, StudentId)
In other words, what's best practice for adding an index which best supports a Foreign Key constraint?
Error Msg 3701 : Cannot Drop The View 'x' Because It Doesn't Exist In The System Catalo
Jun 25, 2001I am work on SQL Server 6.5
When I want to drop a view then appear error message :
"Msg 3701, Level 11, State 1 Cannot drop the view 'EUL_ODBC_SCHEMAS',
because it doesn't exist in the system catalogs."
Has anybody else experienced this, and do you know what is causing the warning?
Thanks in advance for any replies.
How To Prevent System Administrator To View And Edit A Database Structure And Data
Dec 26, 2007I represent a software development house and we have developed a client server system based on SQL Server. Most of our customers have already purchased Enterprise License of SQL Server, therefore they own the SA Login and Password. We are bound to attach our Database with their Server on their machine.
My question is how can we stop a System Administrator of SQL Server to view our Database Structure, Queries, Data installed on their SQL Server on their machine.
Our database structure is a trade secret and we cant reveal the structure to the client.
please answer this question by email to me at farhandotcom@gmail.com
Thanks & Regards
Farhan
Generate Script For Primary Keys And Foreing Keys
May 16, 2008
Pls let me know How I generate script for All primary keys and foreign keys in a table. Thereafter that can be used to add primary keys and foreign keys in another databse with same structure.
Also how I script default and other constraints of a table?
Urgent !!!!! Nee Explanation On Primary Keys And FK Keys
Jul 15, 2002Can somebody explain to me how to best do inserts where you have primary keys and foreign keys.l'm battling.
Is there an article on primary keys/Pk ?
Foreign Keys - On Which Kind Of Keys Do The Base On?
Nov 22, 2007Hello!I have a table A with fields id,startdate and other fields. id and startdateare in the primary key.In the table B I want to introduce a Foreign key to field id of table A.Is this possible? If yes, which kind of key I have to build in table A?Thx in advance,Fritz
View 6 Replies View RelatedAuto Incremented Integer Primary Keys Vs Varchar Primary Keys
Aug 13, 2007Hi,
I have recently been looking at a database and wondered if anyone can tell me what the advantages are supporting a unique collumn, which can essentially be seen as the primary key, with an identity seed integer primary key.
For example:
id [unique integer auto incremented primary key - not null],
ClientCode [unique index varchar - not null],
name [varchar null],
surname [varchar null]
isn't it just better to use ClientCode as the primary key straight of because when one references the above table, it can be done easier with the ClientCode since you dont have to do a lookup on the ClientCode everytime.
Regards
Mike
System.Security.SecurityException: Request For The Permission Of Type 'System.Data.SqlClient.SqlClientPermission, System.Data
Aug 21, 2006I have created a windows library control that accesses a local sql database
I tried the following strings for connecting
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Trusted_Connection = true"
Dim connectionString As String = "Data Source=localhostSQLEXPRESS;Initial Catalog=TimeSheet;Integrated Security=SSPI"
I am not running the webpage in a virtual directory but in
C:Inetpubwwwrootusercontrol
and I have a simple index.html that tries to read from an sql db but throws
the error
System.Security.SecurityException: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.
at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.PermissionSet.Demand()
at System.Data.Common.DbConnectionOptions.DemandPermission()
at System.Data.SqlClient.SqlConnection.PermissionDemand()
at System.Data.SqlClient.SqlConnectionFactory.PermissionDemand(DbConnection outerConnection)
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection,
etc etc
The action that failed was:
Demand
The type of the first permission that failed was:
System.Data.SqlClient.SqlClientPermission
The Zone of the assembly that failed was:
Trusted
I looked into the .net config utility but it says unrestricted and I tried adding it to the trusted internet zones in ie options security
I think that a windows form connecting to a sql database running in a webpage should be simple
to configure what am I missing?
Master Information And Details: How Can I Get The Master ID?
Jun 19, 2007I got a File with sales orders and their details.
Step 1. First I am filtering the Sales Order information and inserting it in my Sales Orders table.
Step 2.Then I am filtering the details from the sales Order and inserting them in the respective table.
My Problem is that the Sales Order File does not contain the Sales Order key (ID), this is generated by the SQL Server. How can get it in order to use it in the second step? I need it because it is a foreign key in the details table.
Any Idea?
SQL Master/Detail (Master Query Based On Detail Values)
Mar 25, 2008
Hello,
I'm new to SQL and need help with a query. Not sure if this is the right place.
I have 2 tables, one MASTER and one DETAIL.
The MASTER table has a masterID, name and the DETAIL table has a detailID, masterID, and value columns.
I want to return a populated MASTER table with entries based on the DETAIL.value.
SELECT MASTER.*
FROM MASTER
WHERE DETAIL.value > 3
This is a simplified version of my problem. I can't figure out how to set the relationship between MASTER.masterID and DETAIL.masterID. If I do an INNER JOIN, the number of results are based on the number of DETAIL entries. I only want one entry per MASTER entry.
Hope this makes sense.
How can I do this?
GrkEngineer
Request For The Permission Of Type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken
Mar 21, 2007Reporting services is configured to use a custom security extension in the following Environment.
Windows xp
IIS 5.0
when i go to http://servername/reports , the UIlogon.aspx page loads fine and i enter username and password. but i get logon failed.
when i go to http://servername/reportserver , the logon.aspx does not load and i get the following error message :
"Request for the permission of type 'System.Web.AspNetHostingPermission, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed."
any idea ? .
chi
Sql Server 2005 Operating System Compatibility Warning Message In System Configuration Check
Apr 3, 2007Ok guys, I am trying to install Sql server 2005 on Vista but I am still stuck with this warning message in the System Configuration Check during Sql server 2K5 installation :
SQL Server Edition Operating System Compatibility (Warning)
Messages
* SQL Server Edition Operating System Compatibility
* Some components of this edition of SQL Server are not supported on this operating system. For details, see 'Hardware and Software Requirements for Installing SQL Server 2005' in Microsoft SQL Server Books Online.
Now, I know I need to install SP2 but how the hell I am going to install SP2 if Sql server 2005 doesn't install any of the components including Sql server Database services, Analysus services, Reporting integration services( only the workstation component is available for installation)?
Any work around for this issue?
P.S.: I didn't install VS.NET 2005 yet, can this solve the problem?
Thanks.
Operating System Error 1450(Insufficient System Resources Exist To Complete The Requested Service.).
Jan 29, 2007Hello!
Hopefully someone can help me.
I have scripts to refresh database as SQL daily jobs. (O.S is Win2K3 and SQL server 2000 and SP4) It was worked and I got the following message this morning from SQL error log.
Internal I/O request 0x5FDA3C50: Op: Read, pBuffer: 0x0D860000, Size: 65536, Position: 25534864896, RetryCount: 10, UMS: Internal: 0x483099C8, InternalHigh: 0x0, Offset: 0xF1FF1E00, OffsetHigh: 0x5, m_buf: 0x0D860000, m_len: 65536, m_actualBytes: 0, m_errcode: 1450, BackupFile: \XAPROD12MASTERXAPRODXAPROD_db_200701290000.BAK
BackupMedium::ReportIoError: read failure on backup device '\XAPROD12MASTERXAPRODXAPROD_db_200701290000.BAK'. Operating system error 1450(Insufficient system resources exist to complete the requested service.).