Hi,
i have to load 1million rows from database( or flatfile) to the database(or flat file).
which task is used as the best solution for this?
Appreciate any assistance in this regard.
Thanks,
Das
I am facing an issue that Data flow task failing after loading 29000 rows out of 2lakhs rows.
I am loading data from .csv file to OLE DB Destination.
This data flow task is placed inside For each loop container.
is this issue because of any performance issue in SSIS packages such as buffer size.
find the error below:
DFT Load Data from FlatFile:Error: The conditional operation failed.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_INDUCEDTRANSFORMFAILUREONERROR.
The "DER Add Calc Columns" failed because error code 0xC0049063 occurred, and the error row disposition on "DER Add Calc Columns.Outputs[Derived Column Output].Columns[M_VALUE_NUM]" specifies failure on error. An error occurred on the specified object of the specified component. There may be error messages posted before this with more information about the failure.
DFT Load Data from FlatFile:Error: SSIS Error Code DTS_E_PROCESSINPUTFAILED. The ProcessInput method on component "DER Add Calc Columns" (48) failed with error code 0xC0209029 while processing input "Derived Column Input" (49). The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running. There may be error messages posted before this with more information about the failure.
[code]....
All,
I need to load a 50 million records table monthly. Any suggestion about the best/fast way to do it?
Thanks a lot
I run the following statement and it will not update beyond 7 million plus rows and I have about 38 million to complete. I keep checking updated row counts and after 1/2 day it's still the same so I know something is wrong because it was rolling through no problem when I initiated it. I need to complete ASAP so it's adding to my frustration. The 'Acct_Num_CH' field is an encrypted field (fyi).
SET rowcount 10000
UPDATE [dbo].[CC_Info_T]
SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v'
WHERE [Acct_Num_CH] IS NOT NULL
WHILE @@ROWCOUNT > 0
BEGIN
SET rowcount 10000
UPDATE [dbo].[CC_Info_T]
SET [Acct_Num_CH] = 'ayIWt6C8sgimC6t61EJ9d8BB3+bfIZ8v'
WHERE [Acct_Num_CH] IS NOT NULL
END
SET rowcount 0
I'm new to using a DB and have a few questions about what I'm trying to do. I have some historical options data and want to place it into a sql express database. (I understand I might need to use a none express version once the db gets to big.) A months worth of data is over 5.5 million rows of data. So six years worth is ~400 million rows. Is it possible to put this into a sql db and be able to search it very fast? I have a months worth in a db now and it is pretty slow. Should I use a new table for each month and then have 6 years * 12 month = 72 tables to increase the search speed? I search by date and stock_symbol and the data looks like this:
Date, Stock_Symbol, Option_Symbol, Strike, BidPrice, AskPrice, Volume, OpenInterest, (and a few others)
The select statement is simple: SELECT * FROM Options WHERE Date = @Date and StockSymbol = @Symbol
Thanks
In our database, we have a very large table that gets updated every morning, start of the day is copying 4 million rows from the fact table from previous date to today's date in the same table and then some other processing. It takes 1 1/2 to 2 hrs to do this. There is a dts package created to copy these rows into temp table and then to this fact table.
This table has more than 200 million rows
Any ideas on how to accomplish this without doing the copy twice and not running into locking problems.
Thanks for any suggestions.
i am deleating 8 Million rows from my database,I am wondering how to control T-Log,also I heard something about row lock and table lock
View 4 Replies View Relatedi have a following table
table name : emp_master
empid efname emname elamane efathername emothername deptno edob edoj createdby updateby lastupdatedatetime lastactionperformed
empid is primarykey.
this table contains 20million of records and i want to fire following query on this to get employye all data where eployee is more than 10 year old
select empid ,efname, emname, elamane, efathername, emothername, deptno ,edob ,edoj ,createdby, updateby, lastupdatedatetime ,lastactionperformed
from emp_master
where year(doj)+10 > year(getadate())
this will return approx 10 million rows and taking 18 mins. tune this query what approaches should i take to reduce the time of execution.
I need to update about 1.3 million rows in a table of mine.
I am getting the data from one of the columns of the same table and
updating the new column.
I am doing this using a cursor which I have put in a stored procedure.
As this is a production table which users might be accessing.It is a
web based application and I can't slow the system down.
So I am willing to run the stored prcedure during off peak hours.
However, do I need to put this in a transaction?
If I did put it in a transaction what type of isolation level should I
opt for?
Data integrity is very important for me and I don't mind to compromise
on the performance.
I am doing this because one of the columns which has "short description"
entry is has become too small for business purposes and we want to increase it's
length from varchar(100) to varchar(150).
As this is SQL 6.5, I can't increase the lenght of the column.
So Iadded a new column and will run the stored proc.
What precautions are to be taken?
This is on a high priority basis and very important too.
Thanks in advance...
Stored procedure code:
USE DB_Registration_Dev
GO
IF EXISTS (SELECT NAME FROM SYSOBJECTS WHERE NAME='usp_update_product' AND TYPE='P')
DROP PROCEDURE usp_update_product
GO
CREATE PROC usp_update_product
AS
DECLARE @short_desc varchar(100)
DECLARE @prod_id int
DECLARE sdesc_curs CURSOR
FOR
SELECT [Product].[product_id] , [Product].[short_description]
FROM Product
OPEN sdesc_curs
FETCH NEXT FROM sdesc_curs
INTO @prod_id, @short_desc
WHILE @@FETCH_STATUS = 0
BEGIN
UPDATE Product
SET [Product].[sdesc] = @short_desc
WHERE Product_id=@prod_id
FETCH NEXT FROM sdesc_curs
INTO @prod_id, @short_desc
IF @@FETCH_STATUS <> 0
PRINT ' Finished Updating the table...go ahead and have fun ...! '
END
DEALLOCATE sdesc_curs
GO
Hi, I used the /e in my bcp code. yet did not get all the rows from the main frame into the sql talbes... here is the case I have 11 million rows in an ftp server I use this code to bcp into sql server can anyonecheck if this code is good for the process, I am missing one million row in the bcp process and do not know why??? I put the /e to see if there is any error but could not see any error file in my hard drive?
Please check it out and let me know
regards
Ali
Exec master..xp_cmdshell "bcp dbname..tablename in c:ftprootNbtorder.txt /fd:ftprootformatfileablename.fmt /Servername /Usa /Password /b250000 /a8000 /eerrfileORD"
I'm looking for some performance assistance on updating a column value in a table that contains approximately 50 million rows. I have a permanent table in another database that has the key column and value to be set. My query is listed below, but I'm afraid it will run quite awhile. Any suggestions would be appreciated.
update mytable
set column2 = b.column2
from mytable as a
join mytable1 as b
on a.column1 = b.column1
There is a one to one relationship between the two tables.
Need help, I am managing a Data Warehouse (80 G.B Database Size), I purge older than 6 months data from a table which has more than 140 Million rows on daily basis. The daily data load performance is degrading. The table has no clustered indexes (only non-clustered indexes).
Tried dropping and rebuilding the non-clustered indexes, didn't work.
One way to solve the problem is drop the non-clustered index, bcp out the data, truncate the table and bcp in the data and rebuild the non-clustered indexes. This is too risky and taking 14 hours to bcp out the data.
This was not the issue in SQL Server 6.5, because SQL 6.5 always insert new record indexes at the end of the heap link (heap = non-clustered indexes without clustered index). In contrast, SQL Server 7.0 first checks for available space in existing pages by using percent free space pages (this is where it is killing the performance ).
Thanks for your help!
I have 1+ CSV files (using a foreach loop) which I'm doing a lot of transform work on and then inserting into a SQL database table.
Each CSV file usually contains about 2 days worth of data (contains date stamps) - somewhere in the region of 60k records per day.
The destination table currently contains 3 million+ rows and will get bigger.
I need to make sure that before inserting into the destination table, the data doesn't already exist.
I've read the following article: http://www.sqlis.com/311.aspx
While the lookup method works, it takes ages and eats up memory as it caches the 3m+ records before running for each CSV. Obviously this will only get worse as the table grows in size.
To make things a little more efficient what I'd like to do, is first derive the dates I'm dealing with in the current file - essentially storing the max(date) and min(date) in variables. Then in the lookup SQL use those vars, to reduce the amount of data that needs to be brought into the transformation to check against before inserting into the destination table.
Lookup SQL eg. SELECT * FROM MyTable WHERE Date BETWEEN varMinDate AND varMaxDate.
Ideally I'd use an aggregate transformation and then use the subsequent output from that either in the lookup query or store the output in vars, but I don't think you can do that and I get the feeling I'm approaching this with the wrong mindset.
Any thoughts would be great!
I have a requirement to delete 1 Million records from a table having 10 Million data and it's being queried on 24/7 basis (don't have a downtime). how can I achieve that?
View 13 Replies View Related1) I write a select statemnet
select a.columname1, b.columname1
from table1 a,table2 b
where a.columname2 = b. columname3
How do i compare
a.columname2 <--> int type column
while b. columname3 <--->varchar type
how should i use convert function
2) whats the best way to import 1.5 million rows ?
How about text file
I am doing a performance testing for In-memory option is sql server 2014. As a part I want to insert 500 million rows of records into a in-memory enabled test table I have created.
I need a sample script to insert 500 million records into a table ....
I have been tasked with writing an update query to update a table with more than 150 million rows of data. Here are the table structures:
Source Tables :
OC
CREATE TABLE [dbo].[OC](
[OC] [nvarchar](255) NULL,
[DATE DEBUT] [date] NULL,
[DATE FIN] [date] NULL,
[Code Article] [nvarchar](255) NULL,
[INSERTION] [nvarchar](255) NULL,
[Code] ....
The update requirement is as follows:
DECLARE @Counter INT=0 --This causes the @@rowcount to be > 0
while @@rowcount>0
BEGIN
SET rowcount 10000
update r
set Comp=t.Comp
[Code] ....
The update took more than 48h and didn't terminate , how to accelerate it ?
I have a row that is being used log track plays on our website.
Here's the table:
CREATE TABLE [dbo].[Music_BandTrackPlays](
[ListenDate] [datetime] NOT NULL DEFAULT (getdate()),
[TrackId] [int] NOT NULL,
[IPAddress] [varchar](20)
) ON [PRIMARY]
There's a CLUSTERED INDEX on ListenDate ASC and a NON CLUSTERED INDEX on the TrackId.
I have a TRIGGER on the Music_BandTrackPlays table that looks like the following:
CREATE TRIGGER [trig_Increment_Music_BandTrackPlays_PlayCount]
ON [dbo].[Music_BandTrackPlays] AFTER INSERT
AS
UPDATE
Music_BandTracks
SET
Music_BandTracks.PlayCount = Music_BandTracks.PlayCount + TP.PlayCount
FROM
(SELECT TrackId, COUNT(*) AS PlayCount
FROM inserted
GROUP BY TrackId) AS TP
WHERE
Music_BandTracks.TrackId = TP.TrackId
When a simple INSERT statement is done on the Music_BandTrackPlays table, it can take quite a long time. When I remove the TRIGGER the INSERTs are immediate. The Execution plan for the TRIGGER shows that a 'Inserted Scan' is taking up most of the resources.
How exactly is the pseudo 'inserted' table formed?
For now, I think the easiest thing to do is update my logging page so it performs 2 queries. One to UPDATE the Music_BandTracks table and increment the counter, and perform the INSERT into the Music_BandTrackPlays table seperately.
I'm ok with that solution but I would really like to understand why the TRIGGER is taking so long. The 'inserted' pseudo table will be 1 row 99% of the time. Does SQL Server perform a table scan on all 20 million rows in order to determine what's new and put it in the inserted pseudo table?
Thanks!
IF NOT EXISTS (SELECT TOP 1 1 FROM dbo.syscolumns WHERE id = OBJECT_ID(N'dbo.Employee) and name = 'DoNotCall')
BEGIN
ALTER TABLE [dbo].[Employee] ADD [DoNotCall] bit not null Constraint DoNot_Call_Default DEFAULT 0
IF ( @@ERROR <> 0 )
GOTO QuitWithRollback
END
It just takes a LOT of time in SQL Server Management studio. I have to cancel the query and cancelling takes a whole lot time. I am using SQL Server 2008.
Hi All,
I was wondering if it is possible to assign values to multiple variables from within the same execute sql task, ie I want to use only one execute sql task and have multiple T-SQL statements within it and then assign the results of these sql statemenst as values to multiple variable.
Typically I would declare variables var1 , var2 and var3 , then can I just add one execute sql task and have mutiple sql statements within it? something like this
select max(id) from table1
select max(id) from table2
select max(id) from table3
Thanks
I have a SSIS package that transfers data from three SQL Server 7 servers to a SQL Server 2005 database. This package has about 30 different tables it copies. The table structures in the source database and destination tables are identical. About 25 different tables load without any issues. I have about 5 tables that load some nights without a problem. On other nights, the data transfers seem to randomly (though usually the most recent records) ignore some of the data. I have logging turned on and receive no errors. It just appears to stop loading data.
I should also mention that I truncate each destination table before begining and each table is loaded from data from each of the 13 source database (I am combining data from 13 regional database for reporting purposes). This is done using a Foreach Loop Container that updates the Server/Region connection string for each region. I am using the OLE DB Source connection to the SQL Server Destination. I have tried as well with the OLE DB Destination with the same result (and no error). I do not do any manipulation to the data on the transfer, but added a "RowCount" transformation between the source and destination and it gives the correct number of rows, but not all the rows get loaded.
I have just loaded SQL Server 2005 SP1 and it is playing havoc with any SSIS packages that use the File System Task.
I am using the FST to copy a file to a directory after it has been loaded. This worked fine prior to SQ1 but now I am getting the following error if there are one or more files already in the target directory:
[File System Task] Error: An error occurred with the following error message: "The directory is not empty. ".
If I remove all files from the directory it works fine.
Has anyone come across this problem and got a workaround for this? Will it involve me writing a FSO script task???
Is this 'feature' going to be rectified in SP2?
I tried to load a fixed width flat file with around 300,000 rows. However, only the first 8xxxx rows were loaded to the destineation table and the rest row were loading blank records. There was no error message showing during package execution. I've tried to split the file in half and the result was the same. So it wasn't the data file problem.
Would there be any buffering issue I need to cater for inside the package? Thanks!
Hi. As the title, I am try to figure out how to write script to prevent duplicated rows before loading data from couple csv files to the OLE database table.
Another quick question, when I use Data Conversion to convert data from string to datetime or decimal type, it always return error like potential data loss.
Hi,
I want to load data into Excel file with following format,
Country
State
Total
Location
ABC
A
20
X1
30
Y1
C
100
XYZ
X
40
Basically I want to insert records from multiple rows into a single row; how can I achieve this using SSIS.
I am using Excel as a data source.
Any help is appreciated.
Regards,
Omkar.
I have a SSIS package running well in production however sometimes the package will fail when the excel file contains more than 25000+ rows.
The SSIS package is run by SQL Server Agent and is set to run in 32bit mode.
I checked the data by loading in batches and all data loaded successfully. But the funny thing is when I run the same package on my local development PC using BIDS and the same data file. The package loads all 25000+ rows successfully.
Is there some setting that is preventing all rows loading in the server environment.
I have some duplicate records in my flat file. But i don't want to load those duplicate rows into my destination.
View 2 Replies View RelatedI need to use Bulk insert statement for copying a table with 200 million rows to another table on the same server...the table has no primary key or identity column.... script for BULK INSERT ...
View 9 Replies View RelatedHi,
I used with Execute SQL Task for update a table in Oracle DB.
I saw that when the command has no rows for updeting, the task fails.
Here is my command:
update tableName set fieldA=sysdate where fieldB is Null
and again, when there are some rows that fieldB is Null then the command succeed, but when the fieldB in all the rows is not null the command fails.
I tried to play with the ResultSet with no success.
Please your advice.
Thank you in advance
Noam
Hi,
am trying to do something which I thought would be simple to do in SSIS, several hours am still struggling with it. Not sure if this a bug or a restriction of the product. Or if im hitting some kind of compatability issue because im trying to get to a Oracle database.
Have a sql task which passes in a parameter, I then query my Oracle database and am trying the result (single row) into another variable.
Variable:
Variable Name = Subsystem
Scope= Package
Value = pgc
Data Type = string
SQL:
SELECT SUBSYSTEM_DS AS SUBSYSTEM_DS FROM SYS_SUBSYSTEM WHERE SUBSYSTEM_ID = ?
Have also tried:
SELECT SUBSYSTEM_DS AS SUBSYSTEM_DS FROM SYS_SUBSYSTEM WHERE SUBSYSTEM_ID = ?0
Result Set = Single Row
Parameter Mapping:
VariableName = User:ubsystem
Direction = Input
Data Type=Varchar
Parameter Name= 0
Parameter Size= -1 (have also tried 3 - length of variable)
Oracle Table:
SQL> desc sys_subsystem
Name Null? Type
----------------------------------------- -------- ----------------------------
SUBSYSTEM_ID NOT NULL CHAR(3)
SUBSYSTEM_DS NOT NULL VARCHAR2(40)
....
....
...
The Error:
[Execute SQL Task] Error: An error occurred while assigning a value to variable "SubsystemName": "Single Row result set is specified, but no rows were returned.".
I have another SQL Task that performs an update on this same table and I also pass in the same variable but it works?
SQL:
UPDATE sys_subsystem
SET as_process_fg = 'X'
WHERE subsystem_id = ?0
The parameter mappings are the same as above.
Any assistance here would be much appreciated.
Thanks
Mick
Hi all,
Can anyone tell me how to access all the rows in a table using script task?
I want to access each row in a table get their values and put it in a global variable. Can anyone hwlp mw with this please.
Thanks in advance,
I have an excel sheet and I want to transfer data from this sheet to a table.But the sheet has some irrelevant rows at the beginning,I want to delete them.How do I do this using script task or any other task?
Since I am just a beginner,it would be nice if you could provide some code samples or a helpful link
Thanks in advance.
Hi
I am actually using a Script task to parse and load an XML file into multiple tables, however I want to add to this so that in case of a failed record I want to redirect it to a log table using Script Task, can anyone provide me with a good link or approach to do this.
Thanks