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How to test it in workbench, whether it's working or not.
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thanq , how can i test in workbench, whether in query, or at stored procedures
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how can i test whether it's working or not in workbench.
am testing in query as:
execute getpassword 'stl123';
but it's giving errors.
and in my c# code is:
MySqlCommand command = new MySqlCommand("getpassword", con);
command.CommandType = System.Data.CommandType.StoredProcedure;
command.Parameters.AddWithValue("@member", txtuser.Text);
con.Open();
using (MySqlDataReader rdr = command.ExecuteReader())
{
if (rdr.Read())
{
reader object rdr is showing no rows.
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Change this:
Member 10263519 wrote: command.Parameters.AddWithValue("@member", txtuser.Text);
To this(remove the @ as it is not required from .net):
Member 10263519 wrote: command.Parameters.AddWithValue("member", txtuser.Text);
“That which can be asserted without evidence, can be dismissed without evidence.”
― Christopher Hitchens
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In my environment I have two servers that host several production databases each - for this example I shall call them PROD1 and PROD2
I also have two servers that host logshipped copies of the production databases - one for reporting by users, the second for report development by the IT team. These I shall call REP1 and REP2.
The setup is as follows:
PROD1 - Logships 4 databases to REP1, logships same 4 databases to REP2 - databases on REP1 and REP2 set to Restore with Standby
PROD2 - Logships 4 other databases to REP1, logships same 4 databases to REP2 - databases on REP1 and REP2 set to Restore with Standby
Logshipping copy jobs are set to copy the transaction logs to a NAS device, to different folders for each of the reporting servers.
REP1 and REP2 therefore each host 8 logshipped copies of the production databases, set to Standby/Readonly
Recently, 2 of the logshipping restore jobs from PROD1 to REP1 have started to fail on a regular basis, and the equivalent two jobs, plus two of the jobs from PROD2 to REP2 have started failing on REP2.
The job histories for the failing jobs don't show aas failed jobs, as the database connection of the jobs seems to be lost, meaning that logging of the rrors fails.
The error in the history are as follows:
Date 09/01/2014 07:30:00
Log Job History (LSRestore_PROD1_dBFirst)
Step ID 1
Server REP1
Job Name LSRestore_PROD1_dBFirst
Step Name Log shipping restore log job step.
Duration 00:01:56
Sql Severity 0
Sql Message ID 0
Operator Emailed
Operator Net sent
Operator Paged
Retries Attempted 0
Message
2014-01-09 07:31:55.93 *** Error: Could not apply log backup file '\\nas2\dbbackups\TransactionLog\DBFirst_20140108210000.trn' to secondary database 'ReportdbFirst'.(Microsoft.SqlServer.Management.LogShipping) ***
2014-01-09 07:31:55.93 *** Error: An error occurred while processing the log for database 'ReportdbFirst'. If possible, restore from backup. If a backup is not available, it might be necessary to rebuild the log.
An error occurred during recovery, preventing the database 'ReportdbFirst' (13:0) from restarting. Diagnose the recovery errors and fix them, or restore from a known good backup. If errors are not corrected or expected, contact Technical Support.
RESTORE LOG is terminating abnormally.
Processed 0 pages for database 'ReportdbFirst', file 'livesystem_Data' on file 1.
Processed 1 pages for database 'ReportdbFirst', file 'livesystem_Log' on file 1.(.Net SqlClient Data Provider) ***
2014-01-09 07:31:55.93 *** Error: Could not log history/error message.(Microsoft.SqlServer.Management.LogShipping) ***
2014-01-09 07:31:55.93 *** Error: ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.(System.Data) ***
2014-01-09 07:31:55.93 Skipping log backup file '\\nas2\dbbackups\TransactionLog\dbFirst_20140108210000.trn' for secondary database 'ReportdbFirst' because the file could not be verified.
2014-01-09 07:31:55.93 *** Error: Could not log history/error message.(Microsoft.SqlServer.Management.LogShipping) ***
2014-01-09 07:31:55.93 *** Error: ExecuteNonQuery requires an open and available Connection. The connection's current state is closed.(System.Data) ***
The database is left in "Restoring" mode and cannot then be used for reporting.
I have tried all sorts of things - introducing delays between the copy and restore jobs, moving the copy locatios to physical drives on the servers etc, but it still happens at least once per day, meaning I have to backup and restore the production databases manually to allow users/developers to work with the data.
Anyone any ideas? I have googled extensively and found several people reporting the same problems, but no working solutions.
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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Chris Quinn wrote: Recently, 2 of the logshipping restore jobs from PROD1 to REP1 have started to fail on a regular basis
Usually when I see this sort of thing when it appears that connections are failing in odd ways I immediately presume that it is a firewall problem. Of course unless you are firewall administrator getting someone to admit that they did in fact change something in the firewall can be problematic.
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The servers are all behind the same firewall, so I think this is unlikely
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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Chris Quinn wrote: The servers are all behind the same firewall
And you are positive that that statement means that the traffic in fact doesn't go through the firewall? (Versus firewall rules that 'should' allow it to behave as though the firewall wasn't impacting it.)
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Hi Guys,
I want to write a query in Oracle/SQL Server (doesn’t make a lot of difference)
I have 3 tables:
EMSINFO (EMSINFOID, DEVICEID, DATE, PlateNumber)
Devices (DEVICEID, INOUT)
Roads (ROADID, ROADNAME)
EMSINFO Contains the enters and exits of vehicles and it’s captured by a device
We have the device id,
And roads has the lists of all the roads in the zone
based on the INOUTwe know whether its enter or exit
Now I want to select PlateNumber, total time in the zone (enter time – exit time) and
Details of when entered and when exited in a text format in one record, because each vehicle can enter and exit multiple times in a particular day
Return Fields of store procedure:
PlateNo: Plate number
text: Enter from (road name) at (time)
Exited from (road name) at ( time)
Duration: Total Duration of being in the zone
My question is generating that text or enters and exits
I appreciate the help
Mr.K
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There is no info on which road the device controls.
Should possibly be:
Devices (DEVICEID, INOUT, ROADID)
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Yes, that's right, neglected to mention it, there is a ROADIDin Device table, now do you have any solution for this problem?
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There are a number of solutions to this, you can use a CTE or 2 queries.
Select all the records using an inner join on the foreign keys and order by platenumber road and date.This should give you the reads for each plate so you can get the max/min for each plate/road and do a simple timespan function on the dates.
Never underestimate the power of human stupidity
RAH
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Try something like this:
WITH Entries AS (
SELECT PlateNumber
,DATE
,RoadName
FROM EMSINFO e
,Devices d
,Roads r
WHERE e.deviceID = d.DeviceID
AND d.RoadID = r.RoadID
AND d.InOut = 'IN'
)
,Exits AS (
SELECT e.PlateNumber
,e2.DATE EntryTime
,e2.RoadName EntryRoad
,Min(DATE) ExitTime
FROM Entries e2
,EMSINFO e
,Devices d
WHERE e2.platenumber = e.platenumber
AND e.deviceID = d.DeviceID
AND d.InOut = 'OUT'
AND e.DATE > e2.DATE
GROUP BY e.PlateNumber
,e2.DATE
,e2.RoadName
)
SELECT e.PlateNumber
,EntryTime
,EntryRoad
,ExitTime
,r.RoadName ExitRoad
FROM Exits e
,EMSINFO e2
,devices d
,Roads r
WHERE e.platenumber = e2.platenumber
AND e.ExitTime = e2.DATE
AND e2.DeviceID = d.DeviceID
AND d.RoadID = r.RoadID
There are probably better implementations to your problem, Search for sql+islands+and+gaps[^].
"Islands and Gaps" is the name of this classic problem.
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Thanx, I will check it out
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hi to all
i want to use a sub report in rdlc
i use a store procedure for data sourse of subreport that no contain any parameter
and when i want to run main reort i get this error!!!!?
An error occurred during local report processing.
Value cannot be null. Parameter name: value
i dont have any parameter in my sub report
and this errot occuered when i have sub report in main report.
my main report is ok.
thank for any help
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Hi Experts, in an existing sp at our company I find this:
SET @MonthFrom=(@Month%12)-1
where @Monthis a calling parameter and @MonthFrom is declared within the sp.
Can someone please explain what "%12" means?
Thank you, Bernd
modified 7-Jan-14 2:11am.
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Hi Peter, thx for your help. I could no determine that from the code and without a clue I was unable to find it in the internet. Now I wonder what sense this makes? None?!?
Greets Bernd
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You are welcome. Please do one thing, according to CP instruction : "If your problem was answered then edit your message and add "[Solved]" to the subject line of the original post, and cast an approval vote to the one or several answers that really helped you." Thanks.
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Hi to all
How can I write a query that get me this result:
My table is :
ColumnA ColumnB ColumnC ColumnD
A1 B1 Can be any thing Can be any thing
A1 B2 Can be any thing Can be any thing
A1 0 Can be any thing Can be any thing
A1 0 Can be any thing Can be any thing
A3 1 Can be any thing Can be any thing
I want to get this result after run a query:
ColumnA ColumnB ColumnC ColumnD
A1 B1 Can be any thing Can be any thing
A1 0 Can be any thing Can be any thing
A1 0 Can be any thing Can be any thing
A3 1 Can be any thing Can be any thing
If ColumnA have B1 and also have a row with B2 I want to just get A1 B1 Row
How can I do this
Thanks for any idea
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How should the query behave if you have a row with B2 but none with B1? Should the row with B2 be included or not?
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I'm not very good at SQL, but I did write this for SQL Server 2012
I'm trying to write TSQL to get all the stuff sold on a date, distinct list of stuff based on part number, and just add up the total qty sold, and the subtotal based on price for each item.
I'm not sure if I should loop the @Temptable results using WHERE partnumber
I'm stuck here, not even sure what words to use to search for learning. I could use a pointer or suggested method to use here.
DECLARE <a href="/Members/Year">@Year</a>AS int;
DECLARE <a href="/Members/month">@Month</a>AS int;
DECLARE <a href="/Members/Day">@Day</a>AS int;
SET <a href="/Members/Year">@Year</a>= 2013;
SET <a href="/Members/month">@Month</a>= 8;
SET <a href="/Members/Day">@Day</a>= 29;
DECLARE @startDate AS DATE;
DECLARE @stopDate AS DATE;
SET @startDate = DATETIMEFROMPARTS(@Year, <a href="/Members/month">@Month</a> <a href="/Members/Day">@Day</a> 0, 0, 0, 0);
SET @stopDate = DATETIMEFROMPARTS(@Year, <a href="/Members/month">@Month</a> <a href="/Members/Day">@Day</a> 23, 59, 59, 999);
DECLARE <a href="/Members/temp">@Temp</a>TABLE(
PartNumber VarChar(80),
ThumbNail VarChar(250),
Qty INT,
Cost Decimal,
Price Decimal
)
INSERT INTO <a href="/Members/temp">@Temp</a>(PartNumber, ThumbNail, Qty, Cost, Price)
SELECT PartNumber, ThumbNail, Qty, Cost, Price From CompletedOrdersCart WHERE OrderDate > @startDate AND OrderDate < @stopDate
06-CRL10, /images/06-cr10.jpg, 1, 6.45, 10.50
06-CRL10, /images/06-cr10.jpg, 1, 6.45, 10.50
06-CRL10, /images/06-cr10.jpg, 1, 6.45, 10.50
06-CRL10, /images/06-cr10.jpg, 1, 6.45, 10.50
33-8114, /images/33114.jpg, 1, 3.45, 6.00
33-8114, /images/33114.jpg, 1, 3.45, 6.00
33-8114, /images/33114.jpg, 1, 3.45, 6.00
33-8114, /images/33114.jpg, 1, 3.45, 6.00
DECLARE @SummaryItems TABLE(
PartNumber VarChar(80),
ThumbNail VarChar(250),
Qty INT,
Cost Decimal,
Price Decimal,
SubTotal Decimal
)
INSERT INTO @SummaryItems (PartNumber, ThumbNail, Cost, Price)
SELECT DISTINCT(PartNumber), ThumbNail, Cost, Price FROM <a href="/Members/temp">@Temp</a>
06-CRL10, /images/06-cr10.jpg, null, 6.45, 10.50, null
33-8114, /images/33114.jpg, null, 3.45, 6.00, null
SELECT PartNumber, Thumbnail, Qty, Cost, Price, SubTotal FROM @SummaryItems;
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I'm not sure I understood you correctly but try this:
SELECT PartNumber
,ThumbNail
,Qty
,Cost
,Price
,SUM(Qty * Price) subtotal
From CompletedOrdersCart
WHERE OrderDate BETWEEN @startDate AND @stopDate
GROUP BY PartNumber
,ThumbNail
,Qty
,Cost
,Price
And tell us if it gets you the result you want.
It looks to me like you're thinking procedurally. But SQL is a fourth generation programming language that takes care of that for you.
Refresh your Set theory instead.
Also remember, a temptable is always the last resort.
I also don't believe the Thumbnail belongs in a transaction table, I would keep it in a Parts table.
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Thanks Jorgen!
I tried using sum, but I was told via error that I needed a group by
I'll try it Sunday morning and let you know.
The thumbnail was just to show the picture of the item.
Normally, i would just do the math in asp.net, but I thought I would expand my knowledge of SQL.
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jkirkerx wrote: The thumbnail was just to show the picture of the item.
Yes, but you're storing multiple instances of the same item which isn't very efficient when the database grows. It also gives you many records to update when you change the picture.
Put it in a different table with an ID and join[^] it in to the base query
jkirkerx wrote: Normally, i would just do the math in asp.net, but I thought I would expand my knowledge of SQL.
In this case it's the right place to do it. SQL excels at storing, filtering and aggregation of data. So any math that comes with the aggregation belongs to the database (as a general but not specific rule, there are always exceptions).
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