This is what I would like to do...
1. Alter Table Status
Add ConsiderOpenFlag int null
2. UPDATE values...
3. Alter Table Status
Alter ConsiderOpenFlag int not null
Steps 1 and 2 are easy. What I cannot figure out is step three.
I don't want to have a default on that column, though I wouldn't mind adding it and then dropping it later if it would help.
Jonathan
We have a database where many tables have a field that has to be lengthened. In some cases this is a primary key or part of a primary key. The table in question is:-
/****** Object: Table [dbo].[DTb_HWSQueueMonthEnd] Script Date: 09/25/2014 14:05:09 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[DTb_HWSQueueMonthEnd](
[Code] ....
The script I am using is
DECLARE@Column varchar(100)--The name of the column to change
DECLARE@size varchar(5)--The new size of the column
DECLARE @TSQL varchar(255)--Contains the code to be executed
DECLARE @Object varchar(50)--Holds the name of the table
DECLARE @dropc varchar(255)-- Drop constraint script
[Code] ....
When I the the script I get the error message Could not create constraint. See previous errors.
Looking at the strings I build
ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] DROP CONSTRAINT PK_DTb_HWSQueueMonthEnd
ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] Alter Column [Patient System Number] varchar(10)
ALTER TABLE [dbo].[DTb_HWSQueueMonthEnd] ADD CONSTRAINT PK_DTb_HWSQueueMonthEnd PRIMARY KEY NONCLUSTERED ([Patient System Number] ASC,[Episode Number] ASC,[CensusDate] ASC)
WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, IGNORE_DUP_KEY = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
They all seem fine except the last one which returns the error
Msg 8111, Level 16, State 1, Line 1
Cannot define PRIMARY KEY constraint on nullable column in table 'DTb_HWSQueueMonthEnd'.
Msg 1750, Level 16, State 0, Line 1
Could not create constraint. See previous errors.
None of the fields I try to create the key on are nullable.
Is there a way to set a column nullable in a script if all I have is the column name, something like:
exec('ALTER TABLE xyz ALTER COLUMN ' + @col_name + ' NULL')
The problem is that ALTER TABLE requires the type, so you have to say something like:
exec('ALTER TABLE xyz ALTER COLUMN ' + @col_name + ' decimal(12,4) NULL')
But the data type is not given to the script, so it is stuck.
I realize that syscolumns provides some relevant information, but it is not clear how to convert its information to a string like "decimal(12,4)". It seems, for example, that a decimal type has syscolumns.xtype = 106; however I can find no documentation on this, nor am I assured I can get all the right codes by trial and error. Does anyone know of a clear means of getting this information?
Hi All!I would like to have a composite PK on 3 columns, one of them is nullCREATE TABLE TableA (ColA int NOT NULL ,ColB int NOT NULL ,ColC char (3) NULL ,......)GOALTER TABLE TableA ADDCONSTRAINT TableA_PK PRIMARY KEY CLUSTERED(ColA,ColB,ColC)GOSQL Server does not allow having a composite PK with one nullable column:What is wrong to have values?1,100,NULL1,200,ABC1,200,ABD.....Code in C applies to Values in B and for some values in B the code does not exist.I can work out and define a special Code:NEV(not existing value), but in general I do not understand this restriction.Thanks
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Hi,
I have a table name bla.
PKEY id, int, NOT NULL
group, int
name, string, NOT NULL
how do I compare them with int?
for example the following data.
1, NULL, 'freelance'
2, 1, 'group1'
3, 2, 'group2'
select * from bla where group<>1 <-- this fails?
What is the proper SQL Statement for this?
Regards,
Max
I have a producer table with a nullable column that stores SSN's. In some cases producers inherit SSN's from other producers. These records will have a null producer.ssn and a record stored in a child table to track the inheritance. Anyway, I've found two techniques to enforce uniqueness on a nullable column and wanted to get opinions as to which was better. First, write a trigger. Second, create a computed column that has a unique constraint on it. The computed column would use the SSN if not NULL Else use the PK identity value of the record. EXAMPLE DML:CREATE TABLE test ( ssn CHAR(9) NULL, testId INT identity(1,1) NOT NULL, ComputedConstraint AS CASE WHEN ssn IS NULL THEN CAST(testId AS CHAR(9)) ELSE ssn END, UNIQUE (ComputedConstraint)) Any comments would be greatly appreciated.
View 6 Replies View RelatedHello,
I am trying to recreate a primary key that I dropped in a table....
I'm using a statement like
ALTER TABLE temp WITH NOCHECK add CONSTRAINT PK__tempkey PRIMARY KEY CLUSTERED
(
num,
store
)
But apparently the "store" column was created without a "not null" and it let it create the PK during the table creation but now it won't let me add the PK with that nullable column..
Does anyone know how to get it to use that column to create a primary key after the initial table creation?
Here is the error i get
Cannot define PRIMARY KEY constraint on nullable column in table
Thanks a lot
Hi(SQL Server 2000)I have an existing table (t) with a column that is NOT an identity column(t.ID), but it has manually inserted "row numbers". I want to make thiscolumn become an identity column. This column is a key field to othertables, so I want to keep the row numbers that are allready inserted.From the Query Analyzer, how do I do this?Thanks in advance!Regards,Gunnar VøyenliEDB-konsulent asNORWAY
View 3 Replies View RelatedI have a table that contains names that are all in upper case, this column is called in many different areas of my web app. I wanted to make the names all lowercase, or with the leading character only capitalized.
How can I make a column within a SQL table lowercase at the SQL server end and not the programming side?
thanks,
Frank
Here is my create table command
CREATE TABLE EXCLUSIVEITEM(VIEW_ID INTEGER NONCLUSTERED IDENTITY(1,1)PRIMARY KEY,
VIEW_LATEST_REPLY_DATE CLUSTERED INDEX DATETIME)
Is this the way to create one of my columns clustered. The books that I have all use stored procedure I only want to use regular sql commands. Is this possible?
Hai Everyone,
I have a table with data like this
Tran_no Description Debit Credit
1 SW 1000
1 BR1 500
1 BR2 200
1 BR3 300
2 SQ 500
2 BW1 200
2 BW2 200
2 BW3 100
Now what I wanna do this that
Tran_no Val1 Val2 Val3 Val4
1 1000 500 200 300
2 500 200 200 100
Thanks in advance
Nirene
I have a store procedure to create a table temp, populate data from Origin1 table, and then add a new column SSN to temp table, update the SSNs from another table. but the following code gives error, pleaes help!
Create table temp (
....
)
Insert into temp
select * from Origin1
Alter table temp ADD Name int
Update temp
Set SSN = (select SSN from Origin2
where id = Origin.id)
it gives 'Invalid column name: 'SSN'
I am aware that the add new column doesn't take effect until end of the SP, but there must be a way, Thanks for any inputs.
Hi there,
alter table HardwareInventory alter column [HIID] [nvarchar] IDENTITY (1,1) NOT NULL
Getting this error -
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'IDENTITY'.
can someone please suugest
thanks
akhil
if a customer can have up to 10 acounts and each account has a balance,
in customer_account table, the same custID repeats and relates to an
accountID and each account has its own balance.
How to display each customer in ONE row and list his account one next to another ?
for example:
custID, acct#1, acct#1Balance, acct#2, acct#2Balance, acct#3, acct#3Balance
how to do write SQl to achive it ?
This is chanllenging to me...
Your advise is greatly appreciated !
Hello, I have a table (publication) that has a primary key pubID which is an identity specification. This ID already has relationships to other tables.
I am having problems trying to make one of the other columns in the same table to auto generate. This column (bibNumber) is not related to any other table. All i want to do is when i create a new record in the table, auto generate a number for this column bibNumber.
How can i do this?
I am using sql server express 2005
Regards
Hello, everyone:
I have a table with an indentity column as first column. At beginning it is continue such as 0-50. I delete last 20 columns by hand. The 0-31 is left. When the new data is inserted, I hope the new indentity column begin from 32. How to do that? Now the indentity column begin from 51 as the new data is inserted.
Thanks a lot
ZYT
I have a table with a TEXT column that allows nulls.
Now I need to change it, and make it NOT NULL, but I Can't
ALTER TABLE BUSINESS_UNIT_LANG
alter column VISION text not null
And I get:
Server: Msg 4928, Level 16, State 1, Line 1
Cannot alter column 'VISION' because it is 'text'.
Is it impossible to make a text column NOT NULL when it accepts NULLS ?
All rows and columns are populated, in consequence there isn't any col with null values
Any idea?
Thanks!
when we display hierarchies, we'd like the user to have the option of expanding a column for wider viewing, perhaps by dragging a border. Is this possible?
View 3 Replies View Related the Table columns is like this NO ProductNo Area In Out1 0001 US NULL NULL2 0002 UK NULL Y3 0003 FR Y NULL 4 0004 FR Y NULL5 0005 UK Y NULL I have Query get the result belowArea Count In&OutUS 1UK 2FR 2 the Area is Group By by Area and the Count columns is counting how many recoreds Table for each Areathe problem is the column "In & OUt'I have to make sure if the "In" or "Out" is Null , if one of them is Null the plus 1 so the result would like I have Query get the result belowArea Count In&OutUS 1 1
UK 2 1
FR 2 0 which syntax I can use for the problem? I just think maybe I can use IsNULL?but I have no idea how to wirte a query ...can you give me a hint? thank you
Hi,
I have a table of results for various measured quantites and i need to turn this into a view. Only problem is i need to seperate the measured quantities and their respective values into seperate columns.
At the moment I have something like:
Quantity : Value
--------------------
Quantity 1 : 0.12
Quantity 1 : 0.56
Quantity 2 : 2.36
Quantity 2 : 5.34
Quantity 2 : 4.13
Quantity 3 : 10
Quantity 3 : 15
and I need a view that looks like:
Quantity 1 : Quantity 2 : Quantity 3
-------------------------------------
0.12 : 2.36 : 10
0.56 : 5.34 : 15
null(?) : 4.13 : null(?)
I've tried using pivots but they don't seem to help
Any ideas?
I need to insert and update a table. One column of the table needs to conform to a format as: XXXXXXX.XXXXX
If any data is not complying to the format an error needs to be thrown.
How to implement this constraint!
Currently I'm using a UDF and a physical temp table to accomplish thisand I want to know if there's any way of doing it in a query orsubquery instead...In TableA there are a bunch of rows:InvitationID (PK) PartyID Partygoer1 1 Jim2 20 Bob3 2 Frank4 1 Robert5 1 PeteIn TableB are rows:PartyID (PK) PartyDate PartyName1 1/1/2000 WildParty2 1/1/2000 BoringPartyWhen a user runs a query to search for all parties on 1/1/2000 I wantthe result to look like:PartyID PartyDate PartyName Partygoer1 1/1/2000 WildParty Jim, Robert, Pete2 1/1/2000 BoringParty FrankI'm hoping there's a solution to this.Thanks,lq
View 9 Replies View RelatedI'm making some reports that are made for getting printed. I currently have three groups of reports, each group having four charts (four A4 papers/group). To cut down on the sheer number of papers on the boards I've been asked to merge these charts so that we'll have all three groups in one chart. This works fine for three of the charts (two line charts and one column chart), where the results gets neatly organized in group order. Where I ran into problems was the last chart..
The last chart is a stacked column chart. With one group, it works quite well; the x-axis is by year/week, and for each week there's a bar where the lower part is "done" and the upper part is "failed".
Now when doing this graph with multiple groups (groups as series), it doesn't put the different groups beside each other as I would've wished, instead it piles them on top of each other as if it was a 100% stacked column.
So the question is; is there some way to make a stacked column graph with multiple series that are one stacked bar per group instead of having all of them stacked on top of each other? Am I just missing some small detail here?
I created a query that got the following result. But I expect to get the structure like, care_nbr, cust_nbr,legal_name, address_type=physical address, addr_line_1, addr_line_2, address_type-primary address, ddr_line_1, addr_line_2. That means I only need primary and physical address, and expect them to show in a row to each care_nbr. How to perform that?
CARE_Nbr||Cust_Nbr||Legal_Name||||||| Address_Tpye |||Addr_Line_1 ||||||||||||||||Addr_Line_2
99000001||004554||Mac Marketing, LLC||Billing Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Mailing Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Primary Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Physical Address||210 Parktowne Blvd Suite 1||NULL
My script is here, and the sample result is attached. How should I modify this query to get my expected result?
select a.CARE_Number,
a.Customer_Nbr_Txt,
a.Customer_Type_Txt,
a.Legal_Name_Txt,
c.Address_Type_Txt,c.Address_Line_1_Txt,c.Address_Line_2_Txt,
a.Customer_Status_Txt,
a.Legal_Entity_Type_Txt,
a.Business_Unit_Txt
FROM dw_mart.dbo.DimCustomer a
[code]....
The reason I say this is because a subtotal of a dollar amount will take up more space than other values. Right now, I'm forced to make all columns the same larger width because it appears to be all wrapped into 1 column width setting. I can try to change the value of the subtotal column, "matrixcolumn4", but it reverts to the other value after I press enter to apply the changes.
View 1 Replies View RelatedI am sorry if this is the wrong forum for this question but I can not find better fit.
I am using Visual Studio 2005 to write an asp.net web site which includes an SQL data base. In the databaseI have a table called 'ACCOUNTS' which has primary key column called 'ID' and a nvarchar column called 'Name'.
I want the values in the 'Name' column to be unique in the table so that all accounts have unique names. I don't want to make the 'Name' column the primary key because I want people to be able to change the name of their account after it has been created.
It seems to me there must be some way to add such a constraint to the table but I can find none. I have searched the documentation and seen loads of references to unique columns but I can't find any way to set a column to unique thru the IDE (or any other way). Can anyone help me?
Thanks in advance for any help.
I created a query that got the following result. But I expect to get the structure like, care_nbr, cust_nbr,legal_name, address_type=physical address, addr_line_1, addr_line_2, address_type-primary address, ddr_line_1, addr_line_2. That means I only need primary and physical address, and expect them to show in a row to each care_nbr. How to perform that?
CARE_Nbr||Cust_Nbr||Legal_Name||||||| Address_Tpye |||Addr_Line_1 ||||||||||||||||Addr_Line_2
99000001||004554||Mac Marketing, LLC||Billing Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Mailing Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Primary Address||210 Parktowne Blvd Ste. 1||NULL
99000001||004554||Mac Marketing, LLC||Physical Address||210 Parktowne Blvd Suite 1||NULL
How should I modify this query to get my expected result?
select a.CARE_Number,
a.Customer_Nbr_Txt,
a.Customer_Type_Txt,
a.Legal_Name_Txt,
c.Address_Type_Txt,c.Address_Line_1_Txt,c.Address_Line_2_Txt,
[code]....
I'm running SQL Server 2008 Feb08 CTP and I've got a tablix with column groupings and row groupings which works nicely, I'm a becomming a big fan of the tablix.
However sometimes the filter I have on a column group returns no records and the whole column group disappears.
Is there any way to make this column appear with but with empty cells as I have another tablix down the page with the same columns and I want the columns to all line up on the multiple tablix.
In Version 2005 I used to achieve the equivalent of a column group within a table by adding a list with filter to the cell, this meant the column always was shown, the tablix allows does this much more elegantly but I'll have to go back to the old method if I can't make the column remain.
Am I just missing a simple option?
Nathan
So if my Parameter value is...
MCCL, MCMA, MCPL, MCPR, MCRE, MCSE, MCSN, MCVA, MCCL, MCEP, MCMA, MCREÂ out of 43 possible choices,
What is the expression syntax to hide my tablix column based on my parameter value?
=iif(instr(Join(Parameters!ColumnVisibility.Value,","),"MCCL","MCMA","MCPL"...)>0,false,true)
Just not sure of the syntax...or do I have to qualify each one???
= IIf(Parameter!PF1.Value = "MCCL" OR Parameter!PF1.Value = "MCMA"..., TRUE, FALSE)
I have just started on a project which will be based on an existing MS SQL Server database. It has many columns which can be, and sometimes are, null. My basic DataReader code throws an SqlNullValueException when I try to GetInt32 but not when I try GetString. Why the difference?
Also, how do I model my class? Do I have to make all fields into nullable types? If I do that I notice a simple GridView will not show a column for that field! I am confused.
Hi,
I want to define Primary Key non-clustered on Nullable columns with datatype
as varchar ( 50 ) .
When i try to assign primary key , it gives me an error that
' Cannot define Primary Key contraint on nullable columns in table 'Table 1 '.
Could not create contraint . See previous errors . '
Any ideas how to resolve this issue ?
Thanks,
Anita.
What happens if a column which has been defined so that it should not be Nullable is passed a value which is null?
i.e. IDNumber - Primary Key and Nullable = No.
Thanks
I am trying to add a DateTime? parameter to SqlCommand. It works when the variable has a value, but when its null, an exception gets thrown saying that parameter was not supplied.What is causing this error?
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