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
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
View 3 Replies View RelatedThis 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
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,
i need to select from a table transact where one of the coulmn values has to be equal to (1and 2 and 3).
e.g: column in (1,2,3) would give me what "OR" would do,
I've been working with T-SQL in a MSSQL Server Management Studio (2005) for about a week now. I've been trying to convert some horribly written VB code from a MS Access DB over to SQL so it can be automated on a SQL backend.
Most of the learning process and coding has gone surprisingly well. The problem is with comparing some data to determine which one needs to be flagged.
Three tables to note in bold, with notable fields in italics below them:
EmployeeData
HRID (identity)
ResourceAllocation
ID (identity)
[Last Name] (linked to HRID)
Project
[Resource Start Date]
[Resource End Date]
[Percent Utilization]
tblHCvalues
RAID (linked to ResourceAllocation.ID)
a monthyear and quarteryear for every month and quarter from 2012-2014. IE january12, february12, 1q12, 2q13, etc...
And yes, there are probably a thousand ways to optimize that tblHCvalues, but I'll ask about that later. Just work with the structure I have
Here's how it works: Each employee's data and unique HRID is in the EmployeeData tableAn employee can be on one or multiple projects at any timeThose projects are stored per project in the ResourceAllocation table with a link to the Employee's HRID, and all the other information listed aboveEven though an employee might be on two projects, they can only count for headcount on one project.
We use rules that compare the percent of work being done on a project, and the start and end dates of the employee (resource) on that project to determine which project should be counted for Headcount. The code uses a cursor to go through each HRID, and then pull up all the ResourceAllocation records associated with it.Run the rules to determine which ResourceAllocation record counts toward headcountA stored procedure then runs that fills out the tblHCvalues in the way we want for the project we want
All of it works, except for the rules that compare the things, so that's what I want to focus on in this thread. How do I write these rules:
Here are the rules, and they should work for any number of multiple resource allocations for one employee:
Choose the ResourceAllocation with the greatest [Percent Utilization]If the top ResourceAllocations have equal [Percent Utilization], choose the ResourceAllocation with the earliest [Resource Start Date]If the [Percent Utilization] and the [Resource Start Date] are equal, choose the latest [Resource End Date]If all three fields are equal, choose the first ResourceAllocation (aka, screw it and pick one at random)
I'm sure I could use a bunch of IF statements to compare it all, but even that is complicated to think about. There has to be an easier way, right?
Is there a way to compare tables in 2 different databases to find out if they have the same indexes and column names and keys. Or maybe a tool i dont know about.
View 1 Replies View RelatedHow to resolve the below task
create table #temp ( idx int identity(1,1), col1 int, col2 int )
Here i want a flag success or fail on basis of below conditions.
I need to take all the col1 values and then i need to compare to each other.
if any difference found, i need to check difference more than 30, then it should raise the flag as "Failure".
if all the col1 values are ok , then we need to check Col2 values same as above.
--case 1
insert into #temp(col1,col2)
select 16522,18522
union all
select 16522,18522
union all
select 16582,18522
--select * from #temp
--truncate table #temp
Because of difference in col1 values . the value of flag should be fail.
--case 2
insert into #temp(col1,col2)
select 16522,18522
union all
select 16522,18522
union all
select 16522,17522
Here also the col1 is ok but col2 values have difference so it should be Fail.
Otherwise it should be success.
Let me see if I can explain my situation clearly.I have a table with the columns:answer_id, question_id, member_id, answer- answer_id is the primary key for the table.- question_id relates to another table with questions for a user. Thetable holds the question and the possible choices in a varchar fieldseparated by a delimiter.- member_id is self-explanatory- answer is a varchar field of all the choices the user selected,separated by a delimiter.Here is my problem.I am trying to search all members that have answered, say, question_id= 2 where they selected 'brown' as one of their choices.i can do this if they selected ONLY that item, but not multiple items.The problem is this portionanswer in(select valu from dbo.iter_intlist.....I need this to be something like....function_to_return_all_separated_answers(answer) in(select valu from dbo.iter_intlistThe current way, it is only returning members that have an answer'Brown', not 'Brown, Blue' in their answer field. Make any sense? So,what I need to do is separate the list of answers and say :select member_id from profile_answers whereANY ANSWER in function_to_split(answer) MATCHES ANY OF THESE (selectvalu from dbo.iter_intlist...It seems I might have to join or something, I am just a little lostright now.Here is my proc.ALTER procedure search_detailed_get_ids@question_id as integer,@answers as varchar(8000),@member_ids ntextasdeclare @v as varchar(8000)--get the delimited string of all possible answersset @v = (select bind_data from profiles_questions where question_id =@question_id)--prepare it for the function only accepting 1 charset @v = replace(@v, '||', '|')--gimme all members that matchselect member_id from profiles_answers where question_id = @question_idand answer in(select valu from dbo.iter_intlist_to_table(@v, '|') where listpos in(select valu from dbo.iter_intlist_to_table(@answers, ',')))and member_id in (select valu from dbo.iter_intlist_to_table(@member_ids, ','))returngo
View 3 Replies View RelatedOur database defines the long_value column as nvarchar(max). I want to find out which rows actually contain non-ASCII characters in that column, but this clause also returns rows with only ASCII characters:where long_value like (N'%[' + nchar(128) + N'-' + nchar(65535) + N']%')
What am I doing wrong?
I have a table containing records of criminal convictions. There are over 1M records and the only change is additions to the table on a monthly basis. The two columns I need to deal with are convicted.NAME and convicted.DOB
I have a second table that has 2 columns. One is the name of the defendant and the other is the birth date. This would be monitor.NAME and monitor.DOB
There are no primary keys or any other way to join the tables for this search I want to do.
I would like to be able to put a name in the "monitor" table and run a query to see if there is a match in the convicted table.
The problem I am having is middle initials or names. If I want to monitor.name = 'SMITH JOHN' it will return the results fine. The problem I am having is if the conviction is in the database as 'SMITH JOHN T', or 'SMITH JOHN THOMAS'.
How can I use the monitor table with a 'LASTNAME FIRSTNAME' and return results if the convicted table has a middle initial. I tried with a JOIN:
select distinct convicted.*
from convicted
join monitor
on monitor.name like convicted.defendant
and monitor.birthdate = convicted.dob
In a stored procedure, the following code is causing a huge read and CPU load when it really shouldn't. The @IDParameter below is coming in as a parameter to the proc.
Here's the snippet of code where the problem is coming in:
DECLARE @ID INT;
SET @ID = (SELECT ID From OtherTable WHERE FKID = @IDParameter);
SELECT COUNT(*)
FROM LargeTable
WHERE MostlyZeroID = @ID AND MostlyZeroID > 0Most (90+%) of the MostlyZeroID rows are 0 (hence the name) but regardless of distribution this should evaluate with minimal work on SQL Server's part to 0. However, when this was run, it is using a ton of CPU and doing a ton of Reads as it seeks through the entire index. When I look at the execution plan, I see under the seek predicate a Scalar Operator(CONVERT_IMPLICIT(int,[@1],0)) which is what is destroying the performance.
I've confirmed that the MostlyZeroID column in the LargeTable is defined as an INT NOT NULL. I also tested the scenario outside the stored procedure without any variables as the following to make sure it wasn't some kind of strange parameter sniffing scenario:
SELECT COUNT(*)
FROM LargeTable
WHERE MostlyZeroID = 0 AND MostlyZeroID > 0
However, this query also did the implicit conversion. I then tried this out on a temp table populated with a similar number of records (100 million) with a similar distribution and I didn't get the implicit conversion (I got a constant scan as I would've expected) when I did this:
SELECT COUNT(*)
FROM #TestTable
WHERE MostlyZero = 0 AND MostlyZero > 0
I also tried the same on several other tables that are set up similarly (large amount of zeros in an INT column) and I always got a constant scan and didn't do an implicit conversion.
why the query engine is interpreting this 0 as something other than an INT and doing an implicit conversion when getting the count in the scenario above? What can be done to protect against it? In the above scenario, an IF @ID > 0 statement was placed before the code including the count since there was no reason to even run the code if the @ID was equal to zero.
I have a scenario to compare previous records based on each ID columns. For each ID, there would be few records, I have a column called "compare", We have to compare all Compare 1 records with Compare 0 Records. If Dt is lesser or equal to comparing DT, then show 0. Else 1
We always only one Compare 0 records in my table, so all compare 1 columns will compare with only one row per ID
My tables look like
Declare @tab1 table (ID Varchar(3), Dt Date, Compare Int)
Insert Into @tab1 values ('101','2015-07-01',0)
Insert Into @tab1 values ('101','2015-07-02',1)
Insert Into @tab1 values ('101','2015-07-03',1)
Insert Into @tab1 values ('101','2015-07-01',1)
Insert Into @tab1 values ('101','2015-06-30',1)
Insert Into @tab1 values ('102','2015-07-01',0)
Insert Into @tab1 values ('102','2015-07-02',1)
Insert Into @tab1 values ('102','2015-07-01',1)
select * from @tab1
1.) In the above scenario for ID = '101', we have 5 records, first record has Compare value 0, which mean all other 4 records need to compare with this record only
2.) If Compare 1 record's Dt is less or equal to Compare 0's DT, then show 0 in next columnÂ
3.)Â If Compare 1 record's Dt is greater than Compare 0's DT, then show 1 in next columnÂ
My expected result set should be like ....
how to write condition for self table year records, such 2012 name and acctno match with 2013 name and acctno then total, provided below,
create table #tab1 (MasterKey int, AcctNo varchar(12),name varchar(25), SumaofShares numeric, request_dat datetime )
--drop table #tab1
insert into #tab1 values (1000, 100,'Tom', 2500, '10/01/2012')
insert into #tab1 values (1001, 101,'Bat', 1550, '08/11/2012')
insert into #tab1 values (1002, 102,'Kit', 1600, '06/12/2012')
insert into #tab1 values (1003, 103,'Vat', 1750, '04/15/2012')
insert into #tab1 values (1010, 104,'Sim',200, '04/21/2013')
[code]....
i would like to get 4 columns output
how to get sumofshares (#tab1) and TotalOutStanding(#tab2) summ up with these values,
MasterKey (#tab1) and IssueKey (#tab2) are like primary key and foreign key
so the request is
need to calculate, sumofshares (#tab1) and TotalOutStanding(#tab2) as below
1)ShareBenefist = U and year( request_dat) in (2012 , 2103) and (Name for 2012 should match with 2013 name and 2012 Acctno should match with 2013 accounno) in (#tab1)
then '2012 and 2013 accts UN Veriverted'
2)ShareBenefist = V and year( request_dat) in (2012 , 2103) and (Name for 2012 should match with 2013 name and 2012 Acctno should match with 2013 accounno) in (#tab1)
then '2012 and 2013 accts Veriverted'
3)ShareBenefist = N and year( request_dat) in (2012 , 2103) and (Name for 2012 should match with 2013 name and 2012 Acctno should match with 2013 accounno) in (#tab1)
then '2012 and 2013 accts NONVERT'
4)year( request_dat) =2102 and Name and Acctno not match with 2013 account name and acctno (#tab1)
then '2012 last year accounts'
5)year( request_dat) = 2013 and Name and Acctno not match with 2013 account name and acctno (#tab1)
then '2012 This year accounts'
for ex 1) the below accounts in #tab1 has both 2012 and 2013 and acctno same in both years and name is same in both years so it is condired as
insert into #tab1 values (1012, 100,'Tom',800, '08/22/2013')
for ex 2)
insert into #tab1 values (1013, 101,'Bat',550, '09/15/2013')
for ex 4) 2012 records there is not match acctno and name in 2013 recods
insert into #tab1 values (1002, 102,'Kit', 1600, '06/12/2012')
for ex 5) 2013 records there is no match of name and acct no with 2012 records
insert into #tab1 values (1010, 104,'Sim',200, '04/21/2013')
insert into #tab1 values (1014, 100,'Pet',200, '02/21/2013')
insert into #tab1 values (1016, 110,'Sun',800, '03/22/2013')
insert into #tab1 values (1017, 111,'Bet',550, '12/15/2013')
Expected Results (just for format)
AcctTypeDescription,SumofShares, OtotalutStand
'2012 and 2013 accts UN Veriverted',2700,234
'2012 and 2013 accts Veriverted' ,2890,234
'2012 and 2013 accts NONVERT' ,4533,325
'2012 last year accounts' ,2334,567
'2012 This year accounts' ,2222,877
I am creating one SSIS package where my source is oracle. I have transferred the data from Oracle to flat file as per client requirement.I have to create single package for 2 country 1 is US and another is CANADA Columns are below
ZONE_ID,
ZONE_NAME
Zone Id having data like 10001,10002,10003,20001,2002,2003
Where zone_id start with 1000 is US Zone and Zone_Id start with 2000 is Canada Zone.
For US:
1. Load geography data from DB tables into flat files
2. Load geography data from flat files to Spectrum DB tables
For Canada:
1. Load geography data from DB tables into flat files
2. Load geography data from flat files to Spectrum DB tables
Now I want to look from flat file if Zone_id start with 1000 then it must go to US_DFT and if Zone_id start with 2000 then it must go to CANADA_DFT.
I need to compare the contents of a column.
I have a table with 1 column. Below are the sample contents..
DateInterval
2012-06-01 00:30:00.000
2012-06-01 01:00:00.000
2012-06-01 01:30:00.000
2012-06-01 02:00:00.000
2012-06-01 02:30:00.000
[code]....
as you can see, the records have a 30minutes time interval. i need to create a query to know if there are missing records in the table. so basically the result should be this:
DateInterval
2012-06-01 18:00:00.000
2012-06-01 20:30:00.000
if it is not doable, we can get the nearest record of all missing records like this:
DateInterval
2012-06-01 17:30:00.000
2012-06-01 20:00:00.000
or this:
DateInterval
2012-06-01 18:30:00.000
2012-06-01 21:00:00.000
or this:
DateInterval
2012-06-01 17:30:00.000
2012-06-01 18:30:00.000
2012-06-01 20:00:00.000
2012-06-01 21:00:00.000
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?
View 5 Replies View RelatedHi all,
I am using a SQL statement with a JOINs to display a summary list of Work Orders with some information from the related Purchase Order. I don't require that a Work Order be attached to a Purchase Order, so the JOIN field, POLineItemID, may not be present. My current problem is that my summary page does not show Work Orders that have a NULL value for POLineItemID -- ie, the JOINing field becomes required.
How can I continue to use this JOIN structure but still return rows that don't have this JOIN field?
Thanks in advance for your help. Here is my SQL statement for this...
SELECT tblWorkOrder.WorkOrderNumber, tblWorkOrder.ActualCompletionDate, tblWorkOrder.EstimatedCompletionDate, tblWorkOrder.AssignedTo, tblWorkOrder.DelegatedTo, tblWorkOrder.Due, tblPurchaseOrders.PONumber, tblWorkOrder.POLineItemID, tblPOLineItems.POLineItemID AS Expr1, tblPOLineItems.PurchaseOrderID, tblPurchaseOrders.PurchaseOrderID AS Expr2, tblProducts.ProductID, tblProducts.ProductCategory, tblWorkOrder.ProductID AS Expr3, tblWorkOrder.WorkOrderStatusFROM (((tblWorkOrder INNER JOIN tblPOLineItems ON tblWorkOrder.POLineItemID = tblPOLineItems.POLineItemID) INNER JOIN tblPurchaseOrders ON tblPOLineItems.PurchaseOrderID = tblPurchaseOrders.PurchaseOrderID) INNER JOIN tblProducts ON tblWorkOrder.ProductID = tblProducts.ProductID)ORDER BY tblWorkOrder.Due
Is it bad design to allow nulls on a date field ? I can think of one case such as a sale of an item and populating a field for the date of purchase, only when the purchase took place (and null until then).
comments ?
Hi All!General statement: FK should not be nullabe to avoid orphans in DB.Real life:Business rule says that not every record will have a parent. It isimplemented as a child record has FK that is null.It works, and it is simpler.The design that satisfy business rule and FK not null can beimplemented but it will be more complicated.Example: There are clients. A client might belong to only one group.Case A.Group(GroupID PK, Name,Code…)Client(ClientID PK, Name, GroupID FK NULL)Case B(more cleaner)Group(GroupID PK, Name, GroupCode…)Client (ClientID PK, Name, ….)Subtype:GroupedClient (PersonID PK/FK, GroupID FK NOT NULL)There is one more entity in Case B and it will require an additionaljoin in compare with caseAExample: Select all clients that belongs to any groupSummary Q: Is it worth to go with CaseB?Thank you in advance
View 20 Replies View RelatedHi,I've enherited a big mess, a SQL Server 2000 database withapproximately 50 user tables and 65+ GB data, no explicitrelationships among entities (RI constraints whatsover), attempt tocreate an ERD would more than likely kill the relatively complexedapp, the owner would want to drop out of window, so,I don't intend to do that, you get the picture, sorry no DDLs thistime, and many tables have many nullable columns, joins slows down thesystem quite a bit, what's my best bet to improve its performance?change most of these nullable columns into non-nullable with defaultvalue of something like ' ', any thoughts along this line would beappreciated.
View 6 Replies View RelatedHi,
Could anyone tell me what governs whether a column is set as nullable or not nullable when creating a table using SELECT...INTO. It just seems to pick at random for me! I'm quite sure this is not the case. Is there a way to force a column to be non- nullable? I seem to be wasting a lot of time going through and altering the schema so I can use the columns in keys and indexes.
Dave
I have 4 particular columns (crt_dt,upd_dt,entity_active and user_idn) in many of the tables in my database. Now i have to find all the tables having four columns mentioned above and cases are
1) if the column is nullable., then it should result 'Y'
2) if the column is not nullable., then it should result 'N'
3)if column is not present., then it should display '-'
greetings
Sir i want to check and use the select statement to select which field have a nullable=false in a table
greetings
i am use this query to select the primary field colums in a table
"select Column_Name as PrimaryKeycolumn
from INFORMATION_SCHEMA.KEY_COLUMN_USAGE
WHERE TABLE_NAME = 'tbl_Activity'
and Constraint_Name like 'PK_%'"
but i want to select the fields which have a nullable=false
for that i want know the information schema for null
thank u
Question.I have a new table that I am adding to a script that I wrote. Thistable has 3 fields, the first 2 fields are used in the on statement asbeing = other fields in the script.The first field always has data in it, but the 2nd field is sometimesnull.So my problem is if both fields have data in them and they both matchto the data in the fields that I am linking them to, then it returnsthe 3rd field without a problem. However if the 2nd field is null thenit is returning a null for the 3rd field. I have checked and the fieldthat I am linking to is null also.So if I haveselect t1.field1, t1.field2, t2.field1, t2.field2, t2.field3from table1 t1join table2 t2on t1.field1=t2.field1 and t1.field2=t2.field2with 2 records in each tabletable1: record1: data, datarecord2: data, nulltable2: record1: data,data,datarecord2: data,null,datawhat I get from the script isrecord1: data, data,data,data,datarecord2: data,null,data,null,nullI would expectrecord2: data,null,data,null,dataI hope this makes sense, I didn't want to post the entire actual scriptas it is about 150 lines long.Thanks in advance.
View 5 Replies View RelatedI would like to dynamically copy a table in Transact SQL, like this:
SELECT * into NEW_TABLE from MY_TABLE where 1 = 2
This creates an empty NEW_TABLE as desired. However, NEW_TABLE retains the column nullability of MY_TABLE; I would like NEW_TABLE to have all its columns nullable.
I tried to write Transact SQL logic to update the isnullable column in syscolumns for NEW_TABLE, but was told that the entire SQL Server would have to be reconfigured to allow this.
Does anyone know of another way to do this?