Hi,
I need to create a table (Named as C) with a foreignkey column. That column should references with a primarykey column in table A and a primarykey column in table B. Is this possible?
Thanks in advance.
ramesh.p
Hi all,
The requirement is to have a table say 'child_table', with an Identity column to refer another column from a table say 'Parent_table'..
i cannot implement this constraint, it throws the error when i execute the below Alter query,
ALTER TABLE child_table ADD CONSTRAINT fk_1_ct FOREIGN KEY (child_id)
REFERENCES parent_table (parent_id) ON DELETE CASCADE
the error thrown is :
Failed to execute alter table query: 'ALTER TABLE child_table ADD CONSTRAINT
fk_1_ct FOREIGN KEY (child_id) REFERENCES parent_table (parent_id) ON DELETE
CASCADE '. Message: java.sql.SQLException: Cascading foreign key 'fk_1_ct' cannot be
created where the referencing column 'child_table.child_id' is an identity column.
any workarounds for this ?
Using SQL Server 2000. How can I refer to one alias in another column?E.g., (this a contrived example but you get the idea)SELECT time, distance, (distance / time) AS speed, (speed / time) AS acceleration FROM dataNote how the speed alias is used in the definition of acceleration alias but this doesn't seem to work.
View 11 Replies View RelatedUsing SQL Server 2000. How can I refer to one alias in another column?
E.g., (this a contrived example but you get the idea)
SELECT time, distance, (distance / time) AS speed, (speed / time) AS acceleration FROM data
Note how the "speed" alias is used in the definition of "acceleration" alias but this doesn't work.
I posted a thread in the Getting Started forum about how to make a counter for maximum tickets : http://forums.asp.net/t/1215258.aspx
but maybe this is a more appropriate forum for this subject.
In a school project, we are making a website for a fictional concert/festival (using Visual Studio 2005, C#). On that site users can register and order tickets.
We have access to an SQL-database, by the way, where we can create tables etc.
We want the maximum amount of tickets to be 10000 per day. The festival is supposed to last from friday to sunday.
What would be the best way to do this programatically? The counter should maybe be in an own database table?
Hi,
Is there any way to group variables present in a select statement.
My code:
SELECT @var1=something, @var2=something_else
FROM ...
GROUP BY @var1
I wanted to group by 'something' hence I used a variable to assign it to. But I'm unable to group it.
Any thoughts?
Thanks,
Subha
I have the following table
Table Name EmployeeInformation
EmployeeID EmployeeFirstName EmployeeLastName
1 |John |Baker
2 |Carl |Lennon
3 |Marion |Herbert
Table Name PeriodInformation
PeriodID PeriodStart PeriodEnd
1 |1/1/14 |12/30/14
2 |1/1/15 |12/30/15
[code]...
I want a query to join all this tables based on EmployeeID, PeriodID and LeaveTypeID sum of LeaveEntitlement.LeaveEntitlementDaysNumber based on LeaveTypeID AS EntitleAnnaul and AS EntitleSick and sum AssignedLeave.AssignedLeaveDaysNumber based on LeaveTypeID AS AssignedAnnaul and AS AssignedSick and subtract EntitleAnnaul from AssignedAnnual based on LeaveTypeID AS AnnualBalance and subtract EntitleSick from AssignedSick based on LeaveTypeID AS SickBalance
and the table should be shown as below after executing the query
EmployeeID, EmployeeFirstName, EmployeeLastName, PeriodID, PeriodStart, PeriodEnd, EntitleAnnual, AssignedAnnual, AnnualBalance, EntitleSick, AssignedSick, SickBalance
Hi,
I have a "master" table that holds the names of data tables (one record in the "master" table for each "data" table).
Can I create a ForeignKey constraint that will prevent the "master" table records from being removed if the cooresponding "data" table exists? Is the way to do this to use INFORMATION_SCHEMA.TABLES as the PrimaryKeyTable for the ForeignKey?
Thanks!
I have a excel file which has a column called "Code" and their values are A,B,C,D,E,F,G,H. I want to create a new column called "status" based on the values of "Code".
Code:
A
B
C
D
E
F
G
H
If A,C,E,G then "status" = "Active" else if B,D,F,H then "Status" = "Inactive". I like to do it using "Derived Column".
How can I calculate a DateTime column by merging values from a Date column and only the time part of a DateTime column?
View 5 Replies View RelatedDoes anyone have a script that can drop the Identity columns from all the tables in a database? Thanks
View 1 Replies View RelatedHi guys,
If I have a temporary table called #CTE
With the columns
[Account]
[Name]
[RowID Table Level]
[RowID Data Level]
and I need to change the column type for the columns:
[RowID Table Level]
[RowID Data Level]
to integer, and set the column [RowID Table Level] as Identity (index) starting from 1, incrementing 1 each time.
What will be the right syntax using SQL SERVER 2000?
I am trying to solve the question in the link below:
http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=2093921&SiteID=1
Thanks in advance,
Aldo.
I have tried the code below, but getting syntax error...
ALTER TABLE #CTE
ALTER COLUMN
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
I have also tried:
ALTER TABLE #CTE
MODIFY
[RowID Table Level] INT IDENTITY(1,1),
[RowID Data Level] INT;
When you use "Alter Table add Column", it adds the column to the end of the list of fields.
How do you insert the new column to position number 2 for instance given that you may have more than 2 columns?
Create table T1 ( a varchar(20), b varchar(20), c varchar(20))
Alter table add column x varchar(20)
so that the resulting table is
T1 a varchar(20), x varchar(20), b varchar(20), c varchar(20)
Can this be done programmatically?
I have 2 tables and I would like to somehow merge them and have an ID (primary key) automatically assigned while its being merged.
Ive tried exporting the tables into MS Access and doing it there but these tables have a HUGE amount of data in them and it basically kills whatever machine its ran on.
How can I find all the tables with a specific column name?
View 3 Replies View RelatedIs there a way that you could get the column names for each table in a database using 1 query?
something like:
tbl colname
t1 catID
t1 catName
t2 prodID
t2 prodDesc
t3 cartID
...
...
I know it would be long, but I would just be searching through the saved output for specific names.
hello I am trying to get a distinct on one column and 2 tables but it doesnt work
Table1
ID_Table1
Name1
Number1
Table2
ID_Table2
ID_Table1
Name2
I want to get : ID_Table1, DISTINCT(Name1), Name2
WHERE Name1 LIKE 'A%'
how can I do it ?
thank you
I have a requirement where one column of a table is supposed to have two foreign key constraints i.e. it can be referring to two different columns in two tables.
View 1 Replies View RelatedHi All,
How to find all the tables of a database containing a column . for example,how list all the tables of employee database having employeeid ?
Cheers,
Mathi
India.
If we want to get the changes happened in database we will get through sys.objects or sys.tables .but we are only getting it table name . But how to get by table name and what the column added to that table or what column has been modified (datatype or constraint) .
For example if i added employee table column called deptid it should be shown in changes in geiven date
SELECT
modify_date
,type_desc
,name
FROM sys.objects
WHERE is_ms_shipped=0
--AND modify_date>='yyyy/mm/dd' <--optionally put in your date here
ORDER BY 1 DESC
How to get column name of a table which is modified...
I have 2 tables to join.
select ID,FirstName,LastName,Gender from tableA
select ID,BabyFirstName,BabyLastName from tableB
how can I put the babyfirstname into the same row under Firstname from tableA after joining?
i tried this but the babyfirstname appear in new column.
select ID,FirstName,LastName,Gender, babyfirstname
from tableA a
join tableB b on a.id=b.id
I used a lot of fictitious data in order to test the code of my web site. But I noticed that when I deleted all fictitious data from the tables, the primary key columns keep creating automatically numbers that are above the last one before all data was erased instead of starting again from number 1. How do I reset this automatic numeration in order to restart from 1 again ?
View 3 Replies View RelatedHow do I update a table's column, with the values of another tables column where the primary key between is Part_Number?
table2 = temp_table
Update Actuator_Components Set Scanned_Drawings = table2.Scanned_Drawings
Hi all,
I am trying to join 2 tables in my database on an encrypted column. I am using a symmetric encryption, but because of the IV, a string encrypted at 2 different times produces 2 different encrypted strings. Therefore, I can not merely join the 2 tables on the encrypted columns. Has anyone any insight on techniques for solving this problem? The most naïve way, would be to decrypt both tables, join them, and re-encrypt them again. But, the tables are quite large, and this would be very processor (and time) intensive.
Any help would be greatly appreciated. Thanks in advance for any suggestions.
I have a system that uses 3 tables of the same schema to track status of a transaction:
table 1: submitted
table 2: pending
table 3: confirmed
Transactions are moved from one table to another when the transactions go through different states. How do I maintain a unique identity of a transaction across the 3 tables? Some transactions are added directly to confirmed. Having a counter table affects scalability and increase blocking! Please help.
I have a situation in which i have to get the last value stored in the Primary Key for all the tables. Based on this value i have to update another table which stores the Table names and the last Key value for the table. The values in this table are not correct therefore i have to update it now. I was trying to write a cursor for this but the only problem is i can't get to know how to get the column name on which the primary key is defined for all the tables, thru code.
I would appreciate if someone could help me out with this.
I would like to change column data in all tables in a single database at once.
For instance, i have many tables in a database, and about 30% of the tables has the column "orderplace".
And all the data in orderplace (every tables in the database) are "houston". instead of going to each table and
"update table set orderplace = 'dallas' " .... is there anyway that i could run a sql statement and it will update all the tables in database that has the orderplace column to "orderplace = 'dallas' " ?
any ideas ? thanks.
I have multiple product tables with a "ListPrice" column. I want to use a temporary table that contains "ProductID" and "ListPrice" columns and execute a stored procedure that will update the "ListPrice" column in all product tables with the "ListPrice" from temporary table where "ProductID" from temporary table matches "ProductID" in product tables.
I am new at writing stored procedures.
Been poking around, but how can I tell if a an identity column exists in a table?
View 10 Replies View RelatedIs there a command I can use to tell me all the tables in my schema that have a column name "Id"?
View 5 Replies View RelatedHello,
Is it possible to get a list of rows from Multiple tables which have the same Column Name. I have 3 tables which comtain similar info
and I want to get a list of Names
the structure is
ID;Name;Address;Phone No.
I was thinking something along the lines of SELECT Name FROM TABLE1,TABLE2, TABLE3
But this does not work.
Is there a nice way of doing this with SQL or should I do code outside the SQL DB
Hi there,
I am currently seaching a db for all tables that have the same column name, for example, 'qdate'. Can anyone let me know how I can write a script that will search a db for all tables with this column name 'qdate'?
Thanks for your help!!!!!!
From
NewtoSql
If you need to inner join 2 tables that have some columns names that are the same, how can you have those columns be named differently in the query result without aliasing them individually?
Tried select a.*,b.* from tbldm a,tblap b where a.id=b.id hoping the col names in the result would have the a.s and b.s in front of them but they didn't.