I need help figuring out how to build a stored procedure that will delete rows based on two parameters.
Assume I have two identical tables, Table1 and Table2 both containing columns Date, Name, and Number. I want to delete rows from Table1 based on Date and Name, and Insert Into Table1 From Table2.
Essentially I want it to function somewhere along the lines of:
Delete From Table1
Where (Table1.Date = Table2.Date) AND (Table1.Name = Table2.Name)
and then:
Insert Into Table1
Select * From Table2
I'm not familiar with how stored procedures work so I greatly appreciate the help.
Query for creating this kind of procedure goes like this:
CREATE PROCEDURE DummyProc
#Date DATE,
#Name VARCHAR(20) --Or NVARCHAR if you have UNICODE data
AS
BEGIN
DELETE FROM Table_1
WHERE Table_1.Date = #Date AND Table_1.Name= #Name
INSERT INTO Table_1
SELECT Date, Name, Number --You can specify columns
FROM Table_2
END
GO
And for executing with query:
EXEC dbo.DummyProc 'enter Date here', 'enter Name here';
GO
Related
I would like to log all records generated by a sql select statement in an SSRS report into a table for later reference at the time the report is run.
One idea is to append the unique ID to the reference table and then perform the full query with the additional data for the full record set, but i feel like there is probably a better way.
One way would be to use a STORED PROCEDURE for your SSRS report instead of hard coding the query in the RDL. Then, you could leverage the OUTPUT clause and log the query execution, and return the results. The proc would look something like this:
create procedure myProc (#param1 int)
as
begin
declare #resultTable table (id int, c1 char(4), c2 char(4))
insert into myloggingtable
output INSERTED.id, INSERTED.c2, INSERTED.c3 into #resultTable
select
id,
c1,
c2,
RunDateTime = getdate(),
from SomeTable
where id = #param1
select * from #resultTable
end
Here, I would have an auto-incremented key on the myloggingtable and the RunDateTime would be logged as the execution time.
I have a stored procedure which I pass 3 parameters to, and exports the whole thing in this table, let's call it dbo.myFinalTable. I want to achieve two things:
Task #1:
I need to append data when i'm executing the procedure again with any parameters I'm passing.
I tried adding this at the end of my final table creation, but the total number of rows stays the same. What is there to be done?
IF (EXISTS (SELECT *
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_SCHEMA = 'myDatabase'
AND TABLE_NAME = 'dbo.myFinalTable'))
BEGIN
INSERT INTO dbo.myFinalTable
SELECT
someValues
FROM #tempInWhichIcalulate
ORDER BY someOtherStuff
END
Task #2:
I execute it like this:
execute [myStoredProcedure] 'someString', '123', '2013-03-14'
I want the query above to only append data if the columns id and theDate (from dbo.MyFinalTable; those columns have their data passed from the stored procedure, in this example values '123', '2013-03-14') don't have those values already there.
Note: my procedure declaration looks like this:
alter procedure [myStoredProcedure]
(#theString varchar (30),
#id varchar (10),
#theDate date)
If I understood your goal, this could be the query:
insert into dbo.myFinalTable
select
#theString as MyString,
#id as MyId,
#theDate as MyDate
where not exists(select * from dbo.myFinalTable
where MyId = #id
and MyDate = #theDate)
I have following table structure, for convenience purpose I am only marking individual columns
Table_A (Id, Name, Desc)
Table_1 (Id this is identity column, Name....)
Table_2 (Id this is identity column, Table_A_Id, Table_1_Id)
The relationship between Table_1 and Table_2 is 1...*
Now I have created a table type for Table_A called TType_Table_A (which only contains Id as column and from my C# app I send multiple records). I have achieved this bulk insert functionality as desired.
What I need is when I insert records into Table_2 from TType_Table_A say with below statements, I would like to capture the Id of Table_2 for each record inserted
declare #count int = (select count(*) from #TType_Table_A); --a variable declared for TType_Table_A
if(#count > 0)
begin
insert into Table_2(Table_A_Id,Table_1_Id)
SELECT #SomeValue, #SomeValueAsParameter FROM #TType_Table_A;
end;
Now say if 2 records are inserted, I would like to capture the Id for each of these 2 records.
Any input/help is appreciated
This is what I know how it can be achieved, but I want to reduce DB calls from my app or user cursor in stored procedure
Insert record in Table_1 and return back the Id Loop.....through records and insert record in Table_2 and return back the Id
OR
Use cursor in stored procedure when inserting/selecting from TableType
I assume this is Sql Server? Then you can make use of the OUTPUT clause, like so:
declare #NewId table (MyNewId INT)
insert into Table_2(Table_A_Id,Table_1_Id)
output INSERTED.MyNewId INTO #TempTable(MyNewID)
SELECT SomeValue, SomeValueAsParameter FROM #TType_Table_A;
SELECT * FROM #NewId
First, here is the code for sp_GetWorkQByUserName:
ALTER PROCEDURE [dbo].[sp_GetWorkQByUserName]
( #UserName varchar(50),
#StartDate datetime,
#EndDate datetime )
AS
BEGIN
SET NOCOUNT ON;
SELECT DISTINCT SpotId FROM tblSpotCount WHERE StoreNum = EXECUTE sp_GetUserLocationCodes(#UserName)
ORDER BY SpotDt ASC
END
I know my SELECT DISTINCT statement is wrong, but I wrote it like that to help show what I'm trying to do. I want to run this stored procedure based on the results from the sp_GetUserLocationCodes with a parameter of #UserName.
From what I can tell, my problem lies in how I'm calling sp_GetUserLocationCodes.
Question: how can I run a SELECT DISTINCT query on tblSpotCount.SpotId based on the results from the sp_GetUserLocationCodes stored procedure?
You cannot use a stored procedure directly in a query. You can, however, insert the results of a stored procedure into a temporary table and use that in your query:
CREATE TABLE #storeLocations
(
-- appropriate column names and data types go here
)
INSERT INTO #storeLocations (put column list here)
EXECUTE sp_GetUserLocationCodes(#UserName)
SELECT DISTINCT SpotId
FROM tblSpotCount
WHERE EXISTS (SELECT 1
FROM #storeLocations
WHERE #storeLocations.StoreNum = tblSpotCount.StoreNum)
ORDER BY SpotDt ASC
DROP TABLE #storeLocations
I need something like that which is of course not working.
insert into Table1
(
Id,
Value
)
select Id, value from
(
exec MySPReturning10Columns
)
I wanted to populate Table1 from result set returned by MySPReturning10Columns. Here the SP is returning 10 columns and the table has just 2 columns.
The following way works as long as table and result set from SP have same number of columns but in my case they are not same.
INSERT INTO TableWith2Columns
EXEC usp_MySPReturning2Columns;
Also, I want to avoid adding "." as linked server just to make openquery and openrowset work anyhow.
Is there a way not to have define table strucutre in temp table (all columns with datatypes and lenght)? Something like CTE.
You could use a temporary table as a go-between:
insert into #TempTable exec MySP
insert into Table1 (id, value) select id, value from #TempTable
You could solve the problem in two steps by doing the insert from the stored procedure into a temporary table, then do the insert selecting just the columns you want from the temporary table.
Information on temporary tables: http://www.sqlteam.com/article/temporary-tables
-- Well, declare a temp table or a table var, depending on the number of rows expected
-- from the SP. This table will be basically the result set of your SP.
DECLARE #spResult AS TABLE
(
ID INT,
VALUE FLOAT,
....
);
-- Get the result set of the SP into the temp table.
INSERT #spResult EXEC STORED_PROC;
-- Now you can query the SP's result set for ID and Value;
INSERT Table1 (ID, VALUE)
SELECT ID, VALUE FROM #spResult;
You dont need to create a temporary table, you can do it with single query by creating temporary view like this
with tempView as EXEC MySPReturning10Columns insert into Table1 select id, value from tempView
The temporary view disappears as soon as the statement finishes execution