I want to pass a SELECT query as parameter to STORED PROCEDURE in SQL Server 2008.
In that sp execute that query and store to temp table and then I want to loop a cursor on the 2 field of that temp table.
So how can I do that??
Mainly this part : execute that query and store to temp table
Edit :
Query :
SELECT * FROM SomeView WHERE COL1 = '1' AND COL = GETDATE() ORDER BY COL0
There are many fields in SomeView but I want only 2 : COLS1, CLOS2
I want to loop CURSOR on that 2 fields only
Here is how you can store query result from a dynamic SQL query to a temp table:
DECLARE #sql NVARCHAR(1000)
SET #sql = 'SELECT COL1, COL2 FROM SomeView WHERE COL1 = ''1'' AND COL = GETDATE() ORDER BY COL0'
CREATE TABLE #temp(col1 <yourDataType>, col2 <yourDataType>)
INSERT INTO #temp EXEC sp_executesql #sql
But you should really consider alternative to cursor, cursors degrade performance, cursors operate row by row whereas queries do set based operations. SQL Server is optimized for set based data access. If you can write a query don't use cursor.
Related
I have create a table person(id, name ,samenamecount).The samenamecount attribute can be null but for each row can store the row count for same names.I am achieving this by calling a stored procedure inside a after insert trigger.Below is my code.
create or replace procedure automatic(s in person.name%type)
AS
BEGIN
update person set samenamecount=(select count(*) from person where name=s) where name=s;
END;
create or replace trigger inserttrigger
after insert
on person
for each row
declare
begin
automatic(:new.name);
end;
On inserting a row it is giving error like
table ABCD.PERSON is mutating, trigger/function may not see it.
Can somebody help me to figure out this?
If you have the table:
CREATE TABLE person (
id NUMBER
GENERATED ALWAYS AS IDENTITY
CONSTRAINT person__id__pk PRIMARY KEY,
name VARCHAR2(20)
NOT NULL
);
Then rather than creating a trigger, instead, you could use a view:
CREATE VIEW person_view (
id,
name,
samenamecount
) AS
SELECT id,
name,
COUNT(*) OVER (PARTITION BY name)
FROM person;
You can use the trigger:
CREATE TRIGGER inserttrigger
AFTER INSERT ON person
BEGIN
MERGE INTO person dst
USING (
SELECT ROWID AS rid,
COUNT(*) OVER (PARTITION BY name) AS cnt
FROM person
) src
ON (src.rid = dst.ROWID)
WHEN MATCHED THEN
UPDATE SET samenamecount = src.cnt;
END;
/
fiddle
If you want to make it more efficient then you could use a compound trigger and collate the names that are being inserted and only update the matching rows.
I need to identify tables that were created today by an interface, which I was able to do by using following query:
Note: The interface changes table names on daily basis.
SELECT [name] AS [TableName]
FROM sys.tables
WHERE NAME LIKE '_XYZExport_%'
AND CAST(create_date AS DATE) = CAST(GETDATE() AS DATE)
ORDER BY NAME
What I need:
Once the table names are pulled, I need dump its data into a new table. How can this be done easily?
Example:
Following tables returned from my queries:
_XYZExport_B02
_XYZExport_B12
_XYZExport_B22
I want to take these returned tables and insert their data into an existing Archive table using Union All.
Any help would be great!
You are on the right track with your "cursor" tag. I would recommend creating an insert statement and executing it each cursor loop.
DECLARE #TableName sysname
DECLARE #SQLInsert VARCHAR(100)
DECLARE TableNamesCursor CURSOR FAST_FORWARD READ_ONLY FOR
SELECT [name] AS [TableName]
FROM sys.tables
WHERE NAME LIKE '_XYZExport_%'
AND CAST(create_date AS DATE) = CAST(GETDATE() AS DATE)
ORDER BY NAME
OPEN TableNamesCursor
FETCH NEXT FROM TableNamesCursor INTO #TableName
WHILE ##FETCH_STATUS = 0
BEGIN
SET #SQLInsert = 'INSERT INTO ArchiveTable SELECT * FROM ' + #TableName
EXEC sp_executesql #SQLInsert
FETCH NEXT FROM TableNamesCursor INTO #TableName
END
CLOSE TableNamesCursor
DEALLOCATE TableNamesCursor
Hope that gets you going.
Noel
I have a stored procedure which uses the IN clause. In my ASP.NET application, I have a multiline textbox that supplies values to the stored procedure. I want to be able to order by the values as they were entered in the textbox. I found out how to do this easily in mySQL (using FIELD function), but not a SQL Server equivalent.
So my query looks like:
Select * from myTable where item in #item
So I would be passing in values from my application like '113113','112112','114114' (in an arbitrary order). I want to order the results by that list.
Would a CASE statement be feasible? I wouldn't know how many items are coming in the textbox data.
How are you parameterising the IN clause?
As you are on SQL Server 2008 I would pass in a Table Valued Parameter with two columns item and sort_order and join on that instead. Then you can just add an ORDER BY sort_order onto the end.
From KM's comment above...
I know you didn't state it is comma seperated, but if it was a CSV or even if you have it space seperated you could do the following.
DECLARE #SomeTest varchar(100) --used to hold your values
SET #SomeTest = (SELECT '68,72,103') --just some test data
SELECT
LoginID --change to your column names
FROM
Login --change to your source table name
INNER JOIN
( SELECT
*
FROM fn_IntegerInList(#SomeTest)
) n
ON
n.InListID = Login.LoginID
ORDER BY
n.SortOrder
And then create fn_IntegerInList():
CREATE FUNCTION [dbo].[fn_IntegerInList] (#InListString ntext)
RETURNS #tblINList TABLE (InListID int, SortOrder int)
AS
BEGIN
declare #length int
declare #startpos int
declare #ctr int
declare #val nvarchar(50)
declare #subs nvarchar(50)
declare #sort int
set #sort=1
set #startpos = 1
set #ctr = 1
select #length = datalength(#InListString)
while (#ctr <= #length)
begin
select #val = substring(#InListString,#ctr,1)
if #val = N','
begin
select #subs = substring(#InListString,#startpos,#ctr-#startpos)
insert into #tblINList values (#subs, #sort)
set #startpos = #ctr+1
end
if #ctr = #length
begin
select #subs = substring(#InListString,#startpos,#ctr-#startpos)
insert into #tblINList values (#subs, #sort)
end
set #ctr = #ctr +1
set #sort = #sort + 1
end
RETURN
END
This way your function creates a table that holds a sort order namely, SortOrder and the ID or number you are passing in. You can of course modify this so that you are looking for space rather then , values. Otherwise Martin has the right idea in his answer. Please note in my example I am using one of my tables, so you will need to change the name Login to whatever you are dealing with.
the same way you concatenate ('113113','112112','114114') to pass to the sql sentence in the where clausule you can concatenate
order by
case item
when '113113' then 1
when '112112' then 2
when '114114' then 3
end
to pass to your order by clausule
I have a table that has 100 fields. The table has around 1000 records. I want to know whether any field of any record has a character "" in it. Owning to the large number of fields (100), I want to know how I can form a query to know whether any field in any record has a character "" in it. I am not supposed to be use dynamic SQL :(
OK, without using dynamic SQL you can build the static SQL you need like this:
select 'select pk, ''' || column_name
|| ''' col from mytable where '
|| column_name || ' like ''%x%'';'
from user_tab_columns
where table_name = 'MYTABLE';
That will output a select statement for each column, which you can then run as a SQL Plus script:
select pk, 'PK' col from mytable where PK like '%x%';
select pk, 'COL2' col from mytable where COL2 like '%x%';
select pk, 'COL3' col from mytable where COL3 like '%x%';
I have an SQL query similar to the following:
create procedure test
(
#param1 nvarchar(max)
)
as
begin
select * from table where column1 in (#param1)
end
Now I need to pass the value of #param1 from my .net application in such a way that the above query works.
Can some one please advise me on how to pass from my VB.NET code a value which is similiar to below:
'1','2','3'
My main question is how do I structure value of parameter like above example from my .NET application?
quickly like that, I would create a table valued function that would parse it so you can do
select *
from table
where field in (select field from dbo.myfunction(#param1))
For this type of thing, I use this function and use it as follows:
select Column1, column2 from my table where ID in (select item from fnSplit('1,2,3,4,5,6',','))
create FUNCTION [dbo].[fnSplit](
#sInputList VARCHAR(8000) -- List of delimited items
, #sDelimiter VARCHAR(8000) = ',' -- delimiter that separates items
)
RETURNS #List TABLE (item VARCHAR(8000))
BEGIN
DECLARE #sItem VARCHAR(8000)
WHILE CHARINDEX(#sDelimiter,#sInputList,0) <> 0
BEGIN
SELECT
#sItem=RTRIM(LTRIM(SUBSTRING(#sInputList,1,CHARINDEX(#sDelimiter,#sInputList,0)-1))),
#sInputList=RTRIM(LTRIM(SUBSTRING(#sInputList,CHARINDEX(#sDelimiter,#sInputList,0)+LEN(#sDelimiter),LEN(#sInputList))))
IF LEN(#sItem) > 0
INSERT INTO #List SELECT #sItem
END
IF LEN(#sInputList) > 0
INSERT INTO #List SELECT #sInputList -- Put the last item in
RETURN
END
I don't think the problem is in the values you are passing. #param1 is just a string.
You need to address this in your procedure. Your select statement will not be able to recognize the values in you IN clause. One solution is to take the comma-separated string and insert each record into a table variable Explained Here
If your table variable is table #param_list, you procedure test looks like:
create procedure test ( #param1 nvarchar(max) )
as begin
select * from table where column1 in (Select thefield from #param_list);
end