SQL 2012 :: Identifying Specific Blocker Statement When It Is Part Of Explicit Tran
Jul 2, 2014
App developers are complaining that a blocking report I sent them today does not have enough info to troubleshoot and fix the root cause of the blocking.(I used SQL Sentry to get the report and send to the users, but I think my question is more fundamental than just using one 3rd-party tool.)The reason for the complaints is that the top blocker is a SELECT stmt on TableA that is not the Wait Resource of the blocking (TableB).
I explained that this is likely because the "blocking" SELECT stmt on TableA is part of a larger explicit tran that includes TableB, and that they need to look through their code to identify the SQL stmt that is the root cause of the blocking.They would like that root statement identified in the blocking report, but I don't think it is possible to get to that through DMVs.
I have an Address column that I need to Substring. I want to remove part of the string after either, or both of the following characters i.e ',' OR '*'
Example Record 1. Elland **REQUIRES BOOKING IN*** Example Record 2. Theale, Nr Reading, Berkshire Example Record 3. Stockport
How do I achieve this in a CASE Statement?
The following two case statements return the correct results, but I some how need to combine them into a single Statement?
,LEFT(Address ,CASE WHEN CHARINDEX(',',Address) =0 THEN LEN(Address ) ELSE CHARINDEX(',' ,Address ) -1 END) AS 'Town Test'
,LEFT(Address ,CASE WHEN CHARINDEX('*',Address ) =0 THEN LEN(Address) ELSE CHARINDEX('*' ,Address ) -1 END) AS 'Town Test2'
I have a table which is updated daily using a MERGE statement. As records are insert, updated and deleted, I am saving the OUTPUT from the MERGE statement into a history table with a timestamp and action$ column appended to the record.
Using this history table, I'd like to rebuild the data based on specific past date. I was able to create a stored procedure that inspects each record in the history table and apply it to the data in a temp table. The stored procedure solution uses multiple queries to rebuild the data at a point in time. I was curious if there was an easier and more efficient solution using a table function.
I have to extract a specific part of a string from a column in a sql server table. Following are the details and I have given the sample table and the sample strings.
I have 2 columns in my table [dbo].[StringExtract] (Id, MyString)
The row sample looks like the following
I have to extract the Id and a part of the column from mystring.
Id MyString 1 ABC|^~&|BNAME|CLIENT1||CLIENT1|20110609233558||BIC^A27|5014589635|K|8.1| ABC1|^~&|BNAME1|CLIENT1||CLIENT1|20110609233558||CTP^A27|5014589635|I|7.1| DEF||5148956598||||Apprised|Bfunction1||15|LMP|^^^201106101330| alloys3^ally^crimson^L||||alloys3^ally^crimson^L||||alloys3^ally^crimson^L|||||Apprised|
[Code] ....
The part I want to extract is in the line "ZZZ" and the string part that i want to extract is between the 5th and 6th pipes (|). So my output looks like the following
Id DesiredString 1 Extracts^This^String1 2 Extracts^This^String2 3 Extracts^This^String3
Is there a way to extract this either using TSQL or SSIS.
IF EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[StringExtract]') AND type in (N'U')) DROP TABLE [dbo].[StringExtract] GO IF NOT EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[StringExtract]') AND type in (N'U')) BEGIN CREATE TABLE [dbo].[StringExtract]( [Id] [int] NULL,
Extent (3:394032) in database ID 7 is allocated by more than one allocation object. The error has been repaired.
Msg 8913, Level 16, State 1, Line 2
Extent (3:394032) is allocated to 'GAM' and at least one other object.The error has been repaired.
--Lots of these
Repair: Deleted off-row data column with ID 562825134080, for object ID 1076927654, index ID 1, partition ID 72057594039566336, alloc unit ID 72057594044153856 (type LOB data) on page (3:393971), slot 28. Repair: Deleted off-row data column with ID 562825199616, for object ID 1076927654, index ID 1, partition ID 72057594039566336, alloc unit ID 72057594044153856 (type LOB data) on page (3:393971), slot 29. Repair: Deleted off-row data column with ID 562825265152, for object ID 1076927654, index ID 1, partition ID 72057594039566336, alloc unit ID 72057594044153856 (type LOB data) on page (3:393971), slot 30.
Lots of these:
Msg 8945, Level 16, State 1, Line 2 Table error: Object ID 1076927654, index ID 1 will be rebuilt. The error has been repaired. Msg 8977, Level 16, State 1, Line 2 Table error: Object ID 1076927654, index ID 1, partition ID 72057594039566336, alloc unit ID 72057594044088320 (type In-row data). Parent node for page (3:394009) was not encountered. The error has been repaired.
I have a table called Appointment, for storing (you guessed it) appointments at a medical practice. If an appointment is cancelled, I want to collect a cancellation reason, so let's say that I create a second table called Cancellation which has a foreign key relating to the Appointment table's primary key, AppointmentID, and another column, Reason. Now, in order to indicate that an appointment was cancelled, I could include a Cancelled column in the Appointment table with a bit datatype, or instead I could infer that an appointment must be cancelled if it has a corresponding record in the Cancellation table.
It may be that it'd be better to store the cancellation reason in the Appointment table - But regardless, let's say I stick with the two-table solution described above, and I subsequently want to write a query to list all appointments which have been cancelled. If I had the Cancelled column in the Appointment table, I could simply query for all records in that table where that column's value was FALSE. If I went the other way and DIDN'T have a Cancelled column, I could instead write a query joining the Appointment and Cancellation tables to return all records in Appointment with a corresponding record in Cancellation.
That latter method, whilst slightly more complicated because it involves joining two tables, seems to me to be the most normalised. Instead of storing the fact that an appointment is cancelled in two different tables, that fact is only stored in the Cancellation table. Would there be a performance hit in using the two-table, 'inferred cancellation' method rather than just having a bit column in the Appointment table? Would that performance hit be enough to persuade you to use a Cancellation column in the Appointment table instead? And what about if I were to apply that method to other things associated with each appointment, e.g. Is it completed? Is it chargeable to the client or an insurance company? Is the client and in-patient or out-patient?
I'm working on a script to produce XML. There are two parts to the XML: an envelope (called "message") and a payload ("payload). Here's an example of what the result should look like:
(Note that I had to add a space between the '&' and 'lt' and 'gt' to get it to post in the forum without the forum converting them back to < and >!)You can see that SQL escaped the < and >. Also the CDATA escape sequence is missing.I want to see < instead of & lt and > instead of & gt. Also, I need the CDATA escape sequence.
I am running an Execute SQL task that does a Begin Tran, then the next task in the sequence is a data task which imports a XML file into two tables. If i doo a Rollback Tran only one of the two tables is rolled back.
Is it possible to have both tables rolled back from one Begin tran command or do i need to split the datatasl into two and treat each import as a seperate issue ?
I know that if I have an nvarchar column I can use an equality like = N'supersqlstring' so it doesn't implicit cast as a varchar, like if I were to do ='supersqlstring'. And then I'll be a big SQL hero and all my stored procedures will run before a millisecond can whisper.
But if I'm comparing an nvarchar column to a varchar column, is it better to cast the varchar 'up' to an nvarchar or cast the nvarchar 'down' to a varchar?
For instance:
cast(a.varchar as nvarchar(100)) = an.nvarchar
or
cast(an.nvarchar as varchar(100)) = a.varchar
Leaving aside non-matching, like (at least I don't think) that SQL considers the varchar n to be equal to the nvarchar ń, what's the best way to handle this?
Pretend for a moment that each column contains a mixed letter and number ID with no accented or wiggly-squiggly Unicode characters; it's just designs clashing.
Is there a performance hitch doing it one way or another? Should I use COLLATE? Should one of the columns be altered?
I have a series of records based on empid where I want to identify the empid that may have discrepancies listed. I have some empids that are listed more than once and have different DOB's. In the example I am trying to Create a DOB_ERROR column and either say yes if the DOB doesn't match the other records in the file with the same empid.
SELECT Empid, DOB, CASE WHEN DOB = DOB THEN 'No' ELSE 'Yes' END AS DOB_ERROR, City, St, Gender FROM Emp WHERE EMPID IN
I frequently have the problem where I have a list of items to delete ina temp table, such asProjectId Description------------- ----------------1 test12 test43 test34 test2And I want to delete all those items from another table.. What is thebest way to do that? If I use two IN clauses it will do it where itmatches anything in both, not the exact combination of the two. I can'tdo joins in a delete clause like an update, so how is this typicallyhandled?The only way I can see so far to get around it is to concatenate thecolumns like CAST(ProjectId as varchar) + '-' + Description and do anIN clause on that which is pretty nasty.Any better way?
I want to rollback my t-sql if it encounters an error. I wrote this code:
begin tran mytrans; insert into table1 values (1, 'test'); insert into table1 values (1, 'jsaureouwrolsjflseorwurw'); -- it will encounter error here since max value to be inputted is 10 commit tran mytrans;
I forced my insert to have an error by putting a value that exceeds the data size. However, I didn't do any rollback. Anything i missed out?
Hi Guru,After spening quite sometimes to watch my box, I've seen PAGEIOLATCH isa lead blocker in my SQL Server 2000 server. Below is the detailed:SPID lastwaittype waitresource blocked status cmd57 LCK_M_S KEY: 7:963690681:8 65 sleeping execute65 PAGEIOLATCH_SH 7:1:217904 0 sleeping selectI thought, latching should be very short-term synchronization. Fromsystemprocess table, I saw the latch waited in a minute sleepingwithout doing any work.My database is about 23GB and more than 5000 tables. The RAID subsystemis RAID1 with 1 disk mapped to C and D logically. Data files and tempdbfiles are located in one location. Tranlog file and log backup filesare located in the same location with different disk spindle.Currently, we are experiencing very slowness and IO bound. I'm ready torebuild the server by putting the RAID10 and 1 and distributingmultiple data files to different RAID10 and tempdb and log files toRAID1.Other than this, how to minimize the IO latch contention?Thanks so much,Silaphet,
Do you have any stored procs or utility to track down the lead blocker as well as the blocked processes on SQL Server 2000? Similar to a tree structure with the lead blocker on top followed by the processes being blocked by the lead blocker.
I am trying to help an individual with a MS Query.
In Excel 97 MS Query the script was written:
TO_CHAR(LABTRANS.STARTDATE, 'YYYY') AS YEAR
In Excel XP I can run an existing Query and it returns the data as expected, but when I view the query it is:
TO_CHAR(LABTRANS.STARTDATE, 'YYYY') AS 'YEAR'
However if I try to create a new query using XP MS Query then the AS YEAR or AS 'YEAR' will be removed by MS Query and my column header will now be:
TO_CHAR(LABTRANS.STARTDATE, 'YYYY')
Here are my examples:
MS Excel 97 Query
SELECT LABTRANS.LABORCODE, LABTRANS.REGULARHRS, LABTRANS.OTHRS, LABTRANS.OTSCALE, LABTRANS.STARTDATE, LABTRANS.TRANSTYPE, VALUELIST.VALDESC, TO_CHAR(LABTRANS.STARTDATE, 'YYYY') AS 'YEAR' FROM MAXIMO.LABTRANS LABTRANS, MAXIMO.VALUELIST VALUELIST WHERE LABTRANS.TRANSTYPE = VALUELIST.VALUE AND (LABTRANS.TRANSTYPE IN (SELECT VALUE FROM VALUELIST WHERE LISTNAME = 'LTTYPE' AND MAXVALUE = 'NON-WORK')) AND LABTRANS.LABORCODE IN (SELECT LABORCODE FROM LABOR WHERE LABOR.TYPE = 'CUPE' AND LABOR.CREWID IS NOT NULL AND LABOR.LA9 = 'N' AND LABOR.LA16 = 'WW' OR LABORCODE = '210308') AND VALUELIST.MAXVALUE = 'NON-WORK' ORDER BY LABTRANS.STARTDATE
MS Excel XP Query
SELECT LABTRANS.LABORCODE, LABTRANS.REGULARHRS, LABTRANS.OTHRS, LABTRANS.OTSCALE, LABTRANS.STARTDATE, LABTRANS.TRANSTYPE, VALUELIST.VALDESC, TO_CHAR(LABTRANS.STARTDATE, 'YYYY') FROM MAXIMO.LABTRANS LABTRANS, MAXIMO.VALUELIST VALUELIST WHERE LABTRANS.TRANSTYPE = VALUELIST.VALUE AND (LABTRANS.TRANSTYPE IN (SELECT VALUE FROM VALUELIST WHERE LISTNAME = 'LTTYPE' AND MAXVALUE = 'NON-WORK')) AND LABTRANS.LABORCODE IN (SELECT LABORCODE FROM LABOR WHERE LABOR.TYPE = 'CUPE' AND LABOR.CREWID IS NOT NULL AND LABOR.LA9 = 'N' AND LABOR.LA16 = 'WW' OR LABORCODE = '210308') AND VALUELIST.MAXVALUE = 'NON-WORK' ORDER BY LABTRANS.STARTDATE
In Excel XP, no matter what I put in the AS part of the statement when I execute the script it runs and removes the AS part from the statement. This only happens when I run the script from MS Query, if I stay in Excel and just refresh the data, then it works fine.
I have a database with a field which contains a load of dates in this format 01/03/1998
What I want to do is select all the records from the database where the month of the date is what ever, this month or the month the customer selected etc.
I suspected it may be something like the following (which doesnt work)
sql = "SELECT * FROM avail_lowermill WHERE CH_Arrival.month = " & showmonth & " ORDER by CH_Arrival"
I know this is an easy one and I know I've read it somewhere, but I can't seem to write the correct format to run correctly. I am trying to build a SELECT statement base on the selected values of a dropdown list on a webform. The selected values will be part of the Table name.. ("client_info" & location_option.selecteditem.value) Can someone show me the correct syntax for adding a form variable into a SELECT statement? Thanks
ALTER PROCEDURE [dbo].[sp_SelectMostRecentArticle]
AS BEGIN
DECLARE @article_id INT SELECT @article_id = ( SELECT TOP 1 article_id FROM article ORDER BY article_id DESC )
DECLARE @comment_count INT SELECT @comment_count = ( SELECT COUNT(comment_id) FROM comment JOIN article ON article_id = comment_article_id GROUP BY article_id HAVING article_id = @article_id )
SELECT TOP 1 article_id, article_author_id, article_title, article_body, article_post_date, article_edit_date, article_status, article_author_id article_author_ip, author_display_name, category_id, category_name--, comment_count AS @comment_count
FROM article
JOIN author ON author_id = article_author_id JOIN category ON category_id = article_category_id
GROUP BY article_id, article_title, article_body, article_post_date, article_edit_date, article_status, article_author_ip,article_author_id, author_display_name, category_id, category_name
HAVING article_id = @article_id
END GO
as you can see, im trying to return a comment_count value, but the only way I can do this is by defining the variable.
I have had to do it this way, because I cannot say COUNT(comment.comment_id) AS comment_count or it returns an error that it cant reference the comment.comment_id.
But when change it to FROM article, comment; I get errors about the article_author_id and article_comment_id.
And i cant add a join, because it would return the amount of rows of the comment...
unless someone could help with what i Just decribed (as i would prefer to do it this way), how would i return the variable value as part of the select statement?
I have an xml stored in a coulum of a table and I use the following query to extract an xml element :
select CONVERT(XML,CONVERT(NVARCHAR(max),Response)).value('(/Quote/error)[1]','nvarchar(max)') as Excepiton .The result of the expression is :
TL43:The product has no marked price.;I would like to select only the code : TL43and then separately I would like to select The product has no marked price.Is there a way I can do it?
I The requirement is to unload all columns data into csv file using bcp with pipe delimiter, but the condition is to remove milliseconds part of a datetime column.
Ex: 2014-02-19 17:12:14.967 remove .967 from data while unloading into csv.
I am trying to make a query that will group my errors messages together - my problem is that each of the error messages is unique, due to them having an unique id in them.
I have a query that returns results based on information in several tables. The problem I am having is that is there are no records in the one table it doesn't return any information at all. This table may not have any information initially for the employees so I need to show results whether or not there is anything in this one table. Here is my select statement: SELECT employee.emp_id, DATEDIFF(mm, employee.emp_begin_accrual, GETDATE()) * employee.emp_accrual_rate - (SELECT SUM(request_duration) AS daystaken FROM request) AS daysleft, employee.emp_lname + ', ' + employee.emp_fname + ' ' + employee.emp_minitial + '.' AS emp_name, department.department_name, location.location_name FROM employee INNER JOIN request AS request_1 ON employee.emp_id = request_1.emp_id INNER JOIN department ON employee.emp_department = department.department_id INNER JOIN location ON department.department_location = location.location_id GROUP BY employee.emp_id, employee.emp_begin_accrual, employee.emp_accrual_rate, employee.emp_fname, employee.emp_minitial, employee.emp_lname, department.department_name, location.location_name ORDER BY location.location_name, department.department_name, employee.emp_lname
The section below is the part that may or may not contain information: SELECT (SELECT SUM(request_duration) AS daystaken FROM request) AS daysleft
So I need it to return results whether this sub query has results or not. Any help would be greatly appreciated!!! TIA
Database is in simple recovery mode, and published with transaction replication push subscription, just one subscriber but the database is huge. I don't want to overwrite the schema at the subscriber either.
I had to run an alter database command on a published database, it created so many logs that an extra drive had to be added along with an extra log file to accommodate all the logs.
The problem I have is I'd like to know clear the file of logs so I can drop the temporary log file, and give the drive back, but I cannot.
I have tried dbcc shrinkfile with the emptyfile option but it never clears, I have also tried it with notruncate and truncateonly options (mainly out of desperation).
I do not need to worry about point in time restore as a full backup is taken before and after the operation. After which the database will be put back into Full recovery mode.
I have looked at log_reuse_wait_desc and the file says 'Replication', so I am now thinking the file cannot empty because replication is keeping one of the VLFs active. I tried dropping and recreating the subscription hoping it might free something up and I could get somewhere, but it made no difference.
Do I have to remove replication completely to get round this? Surely not.
I have also tried putting the database back into full recovery mode, doing a full DB backup, and a transaction log backup, but its made no difference, which is also what makes me think a portion of the log is still active because of replication, and perhaps the transactions have not gone through to the subscriber, which raises another question, why not?
I have not tried restarting SQL server, as I'd like to know a way out of this without having to do that, plus I do not think it would make any difference anyway.
I'm trying to replace a particular part of a row in a table with a new value.
The row is called "DataPath" and it has a lot of values like so:
mashOperationsComponent Data FilesSantec
I want to run a query to replace the mash with our DFS namespace share name companysharesDepartments but keep everything else past the mash part of the original row.
I'm currently running this query, it says it is altering 30,000 rows, but it doesn't look like it's doing anything at all..
UPDATE dbo.Part SET DataPath = REPLACE(DataPath,'company.localsharesDepartments','mash') WHERE DataPath like 'mash\%'
So for example, it would change the mash above to
company.localsharesDepartmentsOperationsComponent Data FilesSantec
Below. I have also pasted the current result of this query and the desired result.
Query can be updated to get the desired result as given below?
Query: Select c.OTH_PAYER_ID, c.PAID_DATE, f.GROUP_CODE, f.REASON_CODE, f.ADJUSTMENT_AMOUNT From MMIT_CLAIM_ITEM b, mmit_tpl c , mmit_attachment_link d, MMIT_TPL_GROUP_RSN_ADJ f where b.CLAIM_ICN_NU = d.CLAIM_ICN and b.CLAIM_ITEM_LINE_NU = d.CLAIM_LINE_NUM and c.TPL_TS = d.TPL_TS and f.TPL_TS = c.TPL_TS and b.CLAIM_ICN_NU = '123456788444'
Current Result which I am getting with this query
OTH_PAYER_ID PAID_DATE GROUP_CODE REASON_CODE ADJUSTMENT_AMOUNT 5501 07/13/2015 CO 11 23.87 5501 07/13/2015 PR 12 3.76 5501 07/13/2015 OT 32 33.45 2032 07/14/2015 CO 12 23.87 2032 07/14/2015 OT 14 43.01
Desired/Expected Result for which I need updated query
I need add an report of type "Power View" in Web Part of Site of Sharepoint.What is category chose in Web Parts to add an report of type Power View ?My objective is create an tree menu with links to specific sites (created for me) that have web parts with "Power View".
