I have a temp table declared
declare #tmptable(
value nvarchar(500) not null
);
I use a function to insert values into that temp table.
I am trying to figure out how to update a table using the values of #tmptable
insert into t1 (
active
,SchoolId
,inserted
)
select
1
,temp.value
,#insertedDate
select temp.value from #tmptable;
When i try to insert in table t1 it doesn't work. I guess there are two Select statements is causing the problem. Please let me know how to fix it. Thanks
Try this one -
INSERT INTO dbo.t1
(
Active
, SchoolId
, Inserted
)
SELECT
1
, t.value
, #insertedDate
FROM #tmptable t;
INSERT INTO t1
(
ACTIVE
,SchoolId
,INSERTED
)
SELECT 1
,temp.value
,#insertedDate
FROM #tmptable temp;
insert into t1 (
active
,SchoolId
,inserted
)
select
1
,temp.value
,#insertedDate
from #tmptable;
this will work...
Related
I want to insert to NewTable some id(found by calledMethod) from table 'inserted' when this id actually it's not in this table(NewTable)
Actually i'm using this method (calledMethod)twice. How to reduce this using for example alias?
CREATE TRIGGER TriggerName
ON Table
AFTER INSERT
AS
BEGIN
INSERT INTO NewTable
(
FirstId
SecondId
)
SELECT
I.ID
CalledMethod(I.Name)
FROM INSERTED I
WHERE CalledMethod(I.Name)
NOT IN (SELECT SecondId FROM NewTable)
END
GO
The second problem occures when I want insert two rows at the same time.
Insert Into Table
(
Name
)
Values
('ro'),('ro-RO')
In this situation, the method returns the same index and both will be added. How to resolve this problem.
In this situation, the method returns the same index
This is example of calledMethod
CREATE FUNCTION CalledMethod
(
#internalName nvarchar(50)
)
RETURNS int
AS
BEGIN
return case
when #internalName Like 'ro%' then 6
when #internalName Like 'sk%' then 7
when #internalName Like 'bg%' then 9
end
END
I believe this is what you need:
CREATE TRIGGER TriggerName
ON Table
AFTER INSERT
AS
BEGIN
INSERT INTO NewTable
(
FirstId
SecondId
)
SELECT
min(I.ID),
x.called
FROM INSERTED I
CROSS APPLY
(SELECT CalledMethod(I.Name) called) x
WHERE
x.called NOT IN (SELECT SecondId FROM NewTable)
GROUP BY x.called
END
I have a table with columns CompanyID, EmployeeCode. EmployeeCode is unique and CompanyID can be repeated. So we can keep a list of employees in Google, Apple etc.
I want a way to ensure that the same employee cannot be added if he/she is already in the database. What would be a good way to do this ? I'd prefer not to create additional columns or tables for this.
Create a UNIQUE constraint on the column where you want to prevent duplicates:
CREATE UNIQUE INDEX [IX_YourTableName_EmployeeCode] ON [YourTableName] (EmployeeCode)
Try this..
Create table UniqueTable
(
CompanyID int,
EmployeeCode int
)
--Insert dummy data
INSERT INTO UniqueTable(EmployeeCode ,CompanyID ) Values(1,200)
--When are Going to insert duplicate Ecmployeecode '1' then it will not insert data into table
INSERT INTO UniqueTable(EmployeeCode ,CompanyID )
Select 1,200 From UniqueTable t1
Left join UniqueTable t2 on 1=t2.EmployeeCode
WHERE t2.EmployeeCode IS NULL
--We are Going to insert different Ecmployeecode '2' it will insert into table
INSERT INTO UniqueTable(EmployeeCode ,CompanyID )
Select 2,300 From UniqueTable t1
Left join UniqueTable t2 on 2=t2.EmployeeCode
WHERE t2.EmployeeCode IS NULL
Try this
Create PROCEDURE [dbo].[sp_Emp_Insert]
#EmployeeCode nvarchar(50)
As
Begin
if Not Exists (select EmployeeCode from YOUR_TABlE where EmployeeCode =#EmployeeCode )
Begin
Insert QUERY
End
else
Return 0
End
End
I am trying to run a query given three tables.
DECLARE #TABLE1 TABLE (ID CHAR(2))
DECLARE #TABLE2 TABLE (ID CHAR(2))
DECLARE #TABLE3 TABLE (ID CHAR(2))
INSERT INTO #TABLE1 VALUES('1')
INSERT INTO #TABLE1 VALUES('2')
INSERT INTO #TABLE2 VALUES('1')
--NOTHING in TABLE3
I Need to get only the values that are present and ignore the null table. This doesn't work since TABLE3 has no values.
SELECT ID
FROM #TABLE1
INTERSECT
SELECT ID
FROM #TABLE2
INTERSECT
SELECT ID
FROM #TABLE3
**Result should be 1**
How do I ignore the any table if it's null but keep the other values?
Why not do a union of select distincts from each table, and then group that by ID and select count(*), and select only rows with count(*) equal to the maximum value of count(*) in the result?
It's a bit of a mess of subqueries at this point unfortunately but you should get the logic :)
Intersect is not going to work for you as you can't add conditions to it.
From what I understand you want to select all records where the ID appears in at least 2 of the tables. I am assuming that the ID is unique to each table.
The following works in MS SQL Server:
DECLARE #TABLE1 TABLE (ID CHAR(2))
DECLARE #TABLE2 TABLE (ID CHAR(2))
DECLARE #TABLE3 TABLE (ID CHAR(2))
INSERT INTO #TABLE1 VALUES('1')
INSERT INTO #TABLE1 VALUES('2')
INSERT INTO #TABLE2 VALUES('1')
--NOTHING in TABLE3
;WITH AllValues AS
(
SELECT ID
FROM #TABLE1
UNION ALL
SELECT ID
FROM #TABLE2
UNION ALL
SELECT ID
FROM #TABLE3
)
SELECT ID
FROM AllValues
GROUP BY ID
HAVING COUNT(*) > 1
Maybe... But the design of the system is extremely foreign; a real world example would help understand what you're trying to do.
Select count(*), ID FROM (
Select ID from #table1
UNION
Select ID from #table2
UNION
Select ID from #table3) Derived
Where RowNum =1
GROUP BY ID
ORder by count(*) DESC
Updated where clause was in wrong place
After having created a temporary table and declaring the data types like so;
CREATE TABLE #TempTable(
ID int,
Date datetime,
Name char(20))
How do I then insert the relevant data which is already held on a physical table within the database?
INSERT INTO #TempTable (ID, Date, Name)
SELECT id, date, name
FROM physical_table
To insert all data from all columns, just use this:
SELECT * INTO #TempTable
FROM OriginalTable
Don't forget to DROP the temporary table after you have finished with it and before you try creating it again:
DROP TABLE #TempTable
SELECT ID , Date , Name into #temp from [TableName]
My way of Insert in SQL Server. Also I usually check if a temporary table exists.
IF OBJECT_ID('tempdb..#MyTable') IS NOT NULL DROP Table #MyTable
SELECT b.Val as 'bVals'
INTO #MyTable
FROM OtherTable as b
SELECT *
INTO #TempTable
FROM table
I have provided two approaches to solve the same issue,
Solution 1: This approach includes 2 steps, first create a temporary table with
specified data type, next insert the value from the existing data
table.
CREATE TABLE #TempStudent(tempID int, tempName varchar(MAX) )
INSERT INTO #TempStudent(tempID, tempName) SELECT id, studName FROM students where id =1
SELECT * FROM #TempStudent
Solution 2: This approach is simple, where you can directly insert the values to
temporary table, where automatically the system take care of creating
the temp table with the same data type of original table.
SELECT id, studName INTO #TempStudent FROM students where id =1
SELECT * FROM #TempStudent
After you create the temp table you would just do a normal INSERT INTO () SELECT FROM
INSERT INTO #TempTable (id, Date, Name)
SELECT t.id, t.Date, t.Name
FROM yourTable t
The right query:
drop table #tmp_table
select new_acc_no, count(new_acc_no) as count1
into #tmp_table
from table
where unit_id = '0007'
group by unit_id, new_acc_no
having count(new_acc_no) > 1
insert into #temptable (col1, col2, col3)
select col1, col2, col3 from othertable
Note that this is considered poor practice:
insert into #temptable
select col1, col2, col3 from othertable
If the definition of the temp table were to change, the code could fail at runtime.
Basic operation of Temporary table is given below, modify and use as per your requirements,
-- CREATE A TEMP TABLE
CREATE TABLE #MyTempEmployeeTable(tempUserID varchar(MAX), tempUserName varchar(MAX) )
-- INSERT VALUE INTO A TEMP TABLE
INSERT INTO #MyTempEmployeeTable(tempUserID,tempUserName) SELECT userid,username FROM users where userid =21
-- QUERY A TEMP TABLE [This will work only in same session/Instance, not in other user session instance]
SELECT * FROM #MyTempEmployeeTable
-- DELETE VALUE IN TEMP TABLE
DELETE FROM #MyTempEmployeeTable
-- DROP A TEMP TABLE
DROP TABLE #MyTempEmployeeTable
INSERT INTO #TempTable(ID, Date, Name)
SELECT OtherID, OtherDate, OtherName FROM PhysicalTable
insert #temptable
select idfield, datefield, namefield from yourrealtable
All the above mentioned answers will almost fullfill the purpose. However, You need to drop the temp table after all the operation on it. You can follow-
INSERT INTO #TempTable (ID, Date, Name)
SELECT id, date, name
FROM physical_table;
IF OBJECT_ID('tempdb.dbo.#TempTable') IS NOT NULL
DROP TABLE #TempTable;
i want to delete duplicate rows from my table on the basis of category ID, but don't want to delete all, i want to left one rows if there are more than one row with the same category ID.
this is my query i am making i need to change it.
delete from twinhead_tblcategory where categoryid in (select categoryid from twinhead_tblcategory group by categoryid having count(categoryid) > 1 )
For SQL Server you can do it:
WITH MyTableCTE (CategoryId, RowNumber)
AS
(
SELECT CategoryId, ROW_NUMBER() OVER (ORDER BY CategoryId) AS 'RowNumber'
FROM MyTable
)
Delete From MyTableCTE Where RowNumber > 1
Do a select distinct into a new table, delete the old one and rename the new one into old table name.
If your rows have a distinct id column, then this should work:
DELETE t1 FROM your_table t1, your_table t2
WHERE t1.column1 = t2.column1 AND t1.column2 = t2.column2
AND ... /* check equality of all relevant columns */
AND t1.id < t2.id
Check here for sql server - http://support.microsoft.com/kb/139444 - that should get you started.
This is probably heavy-handed but perhaps you could select distinct * into a temp table, then truncate the table, then insert into the table the contents of the temp table. Foreign key constraints may prevent this, though.
For SqlServer, you could use a cursor to loop through all items, ordered by that categoryID.
Is the current ID the same as the previous one? Then delete it, see example C of this article.
Else remember the ID for the next round.
You have several way for delete duplicate rows.
for my solutions , first consider this table for example
CREATE TABLE #Employee
(
ID INT,
FIRST_NAME NVARCHAR(100),
LAST_NAME NVARCHAR(300)
)
INSERT INTO #Employee VALUES ( 1, 'Vahid', 'Nasiri' );
INSERT INTO #Employee VALUES ( 2, 'name1', 'lname1' );
INSERT INTO #Employee VALUES ( 3, 'name2', 'lname2' );
INSERT INTO #Employee VALUES ( 2, 'name1', 'lname1' );
INSERT INTO #Employee VALUES ( 3, 'name2', 'lname2' );
INSERT INTO #Employee VALUES ( 4, 'name3', 'lname3' );
First solution : Use another table for duplicate rows.
SELECT DISTINCT *
FROM #Employee
SELECT * INTO #DuplicateEmployee
FROM #Employee
INSERT #DuplicateEmployee
SELECT DISTINCT *
FROM #Employee
BEGIN TRAN
DELETE #Employee
INSERT #Employee
SELECT *
FROM #DuplicateEmployee
COMMIT TRAN
DROP TABLE #DuplicateEmployee
SELECT DISTINCT *
FROM #Employee
Second solution :
SELECT DISTINCT * FROM #Employee
SELECT * INTO #DuplicateEmployee FROM #Employee
INSERT #DuplicateEmployee
SELECT ID,
FIRST_NAME,
LAST_NAME
FROM #Employee
GROUP BY
ID,FIRST_NAME,LAST_NAME
HAVING COUNT(*) > 1
BEGIN TRAN
DELETE #Employee
FROM #DuplicateEmployee
WHERE #Employee.ID = #DuplicateEmployee.ID
AND #Employee.FIRST_NAME = #DuplicateEmployee.FIRST_NAME
AND #Employee.LAST_NAME = #DuplicateEmployee.LAST_NAME
INSERT #Employee
SELECT *
FROM #DuplicateEmployee
COMMIT TRAN
DROP TABLE #DuplicateEmployee
SELECT DISTINCT * FROM #Employee
teared solution : use rowcount
SELECT DISTINCT *
FROM #Employee
SET ROWCOUNT 1
SELECT 1
WHILE ##rowcount > 0
DELETE #Employee
WHERE 1 < (
SELECT COUNT(*)
FROM #Employee a2
WHERE #Employee.ID = a2.ID
AND #Employee.FIRST_NAME = a2.FIRST_NAME
AND #Employee.LAST_NAME = a2.LAST_NAME
)
SET ROWCOUNT 0
SELECT DISTINCT *
FROM #Employee
Fourth solution : use Analytical Functions
SELECT DISTINCT *
FROM #Employee;
WITH #DeleteEmployee AS (
SELECT ROW_NUMBER()
OVER(PARTITION BY ID, First_Name, Last_Name ORDER BY ID) AS
RNUM
FROM #Employee
)
DELETE
FROM #DeleteEmployee
WHERE RNUM > 1
SELECT DISTINCT *
FROM #Employee
Fifth solution : Use identity field
SELECT DISTINCT *
FROM #Employee;
ALTER TABLE #Employee ADD UNIQ_ID INT IDENTITY(1, 1)
DELETE
FROM #Employee
WHERE UNIQ_ID < (
SELECT MAX(UNIQ_ID)
FROM #Employee a2
WHERE #Employee.ID = a2.ID
AND #Employee.FIRST_NAME = a2.FIRST_NAME
AND #Employee.LAST_NAME = a2.LAST_NAME
)
ALTER TABLE #Employee DROP COLUMN UNIQ_ID
SELECT DISTINCT *
FROM #Employee
and end of all solution use this command
DROP TABLE #Employee
Source of my answer is this site