Retrieving A Piece Of Datalogged Equipment By Most Recent Time
Jun 22, 2006
The TSQL below all works except the bolded part at the end. I'm want to grab only the most recently logged piece of equipment not the most recent and all past ones as well which is what I've got doing minus the bolded part below. But I don't know how to say get this Equipment ID etc and only the most recently logged one to find its present location. The bolded part below is just there to show what I want it to do I know you can use an aggregate in a where clause. So in the first table listed tblRdrLog there is a column Time that I want to do this on so a.Time. I don't want to display a.Time just reference.
String dbsql = " SELECT a.EquipmentID " +
" , f.Subcategory " +
" , c.Area " +
" , d.Room " +
" FROM tblRdrLog a " +
" JOIN tblRdrInfo b ON a.ReaderID = b.ReaderID " +
" JOIN tblRdrArea c ON b.AreaID = c.AreaID " +
" JOIN tblRdrRm d ON b.RoomID = d.RoomID " +
" JOIN tblEquipInfo e ON a.EquipmentID = e.EquipmentID " +
" JOIN tblEquipSubcat f ON e.SubcategoryID = f.SubcategoryID " +
" WHERE a.EquipmentID IN (SELECT a.EquipmentID " +
" FROM tblEquipInfo a " +
" JOIN tblEquipCat b ON a.CategoryID = b.CategoryID " +
" JOIN tblEquipSubcat c ON a.SubcategoryID = c.SubcategoryID " +
" LEFT OUTER JOIN tblEquipMake d ON a.MakeID = d.MakeID " +
" LEFT OUTER JOIN tblEquipModel e ON a.ModelID = e.ModelID " +
" JOIN tblStatus f ON a.StatusID = f.StatusID " +
" WHERE b.CategoryID = '" + this.ddlCategory.SelectedValue.ToString() + "' ";
if (!"".Equals(this.ddlSubcategory.SelectedValue.ToString()))
dbsql += " AND c.SubcategoryID = '" + this.ddlSubcategory.SelectedValue.ToString() + "' ";
#region Advanced Search Criteria
// Check whether advanced search submitted
if (adv)
{
if (!"".Equals(this.tbSerialNo.Text.ToString()))
dbsql += " AND a.SerialNo = '" + this.tbSerialNo.Text.ToString() + "' ";
if (!"".Equals(this.ddlMake.SelectedValue.ToString()))
dbsql += " AND d.MakeID = '" + this.ddlMake.SelectedValue.ToString() + "' ";
if (!"".Equals(this.ddlModel.SelectedValue.ToString()))
dbsql += " AND e.ModelID = '" + this.ddlModel.SelectedValue.ToString() + "' ";
if (!"".Equals(this.ddlStatus.SelectedValue.ToString()))
dbsql += " AND f.StatusID = '" + this.ddlStatus.SelectedValue.ToString() + "' ";
}
I have a table with equipment ID, transaction ID, date of transaction. How can I write a sql so that the result is a list of equipment with % up time during 2007. Transaction ID: 100 is down, 200 is up. Example is below the table
Equipment ID Transaction ID Date 1 200 1/12/2007 2 100 2/12/2007 1 100 2/25/2007 3 100 3/10/2007 2 200 3/14/2007
From the table I know that equiment 2 was down for 32 days and up time % during 2007 is (365-32)/365*100
There are several day_timestamp for each index_id.Anyone can help me to write a sql to generate the most recentday_timestamp of index_ids which has not accessed into the system in90 days from today's date.So, I need to get the most recent date and time for each index_id in90 days from today's date.Sample data:Index_idday_timestamp2 2001-04-11 21-29-312 2002-05-21 21-29-312 2003-06-11 21-29-3122004-11-21 21-29-312 2004-09-21 21-29-315 2000-04-21 21-29-315 2003-05-21 21-29-315 2003-06-21 21-29-3152004-09-11 21-29-318 2000-08-11 21-29-3182004-04-01 21-29-3182004-09-21 21-29-3182004-09-23 21-29-31102001-04-11 21-29-31102002-04-21 21-29-31102003-08-11 21-29-31102004-10-21 21-29-31102004-09-21 21-29-31The output will be as below:2 2004-11-21 21-29-3152004-09-11 21-29-3182004-09-23 21-29-31102004-10-21 21-29-31
I need to return all the rows. Where the ESNnumber only returns the most recent one that is associsted with the Asset.
Basically, I need the info most current ESN number only. They are 19,00 rows of each ESN number but it returns 40,000. Duplicates.
SELECT TOP (100) PERCENT dbo.AssetType.Description, dbo.AssetCustomAttributeDef.Name AS [Custom Asset], dbo.ESN.EsnNumber AS [ESN #], dbo.AssetAttribute.AssetDescription AS [Description Detail], dbo.Asset.Barcode, dbo.Asset.SKU, dbo.InventoryOrigin.WarehouseDescription AS [Inventory (W/H)], dbo.ESN.DateImplemented, dbo.ESNTracking.TraceTime, dbo.ESNTracking.PreviousTraceTime, dbo.ESNTracking.HasMoved, dbo.ESNTracking.DistanceMiles, dbo.ESNTracking.Direction, dbo.ESNTracking.Landmark, dbo.ESNTracking.FemaLocation AS Fema, dbo.ESNTracking.ReportTime AS [Report Time], dbo.ESNTracking.CurrLocStreet AS Address, dbo.ESNTracking.CurrLocCity AS City, dbo.ESNTracking.CurrLocState AS State, dbo.ESNTracking.CurrLocZip AS Zipcode, dbo.ESNTracking.CurrLocCounty AS County, dbo.ESNTracking.MapUrl AS [Map Link], dbo.ESNTracking.ReplaceByDate AS [Replace Batt.], dbo.ESNTracking.CurrMileFromStratix AS [From Stratix Now], dbo.ESNTracking.PrevMileFromStratix AS [From STratix Then] FROM dbo.AssetType INNER JOIN dbo.Asset ON dbo.AssetType.AssetTypeId = dbo.Asset.AssetTypeId INNER JOIN dbo.InventoryOrigin ON dbo.Asset.WarehouseId = dbo.InventoryOrigin.WarehouseId INNER JOIN dbo.AssetAttribute ON dbo.Asset.AssetAttributeId = dbo.AssetAttribute.AssetAttributeId INNER JOIN dbo.EsnAsset ON dbo.Asset.AssetId = dbo.EsnAsset.AssetId INNER JOIN dbo.ESN ON dbo.EsnAsset.EsnId = dbo.ESN.EsnId LEFT OUTER JOIN dbo.ESNTracking ON dbo.EsnAsset.EsnId = dbo.ESNTracking.EsnId LEFT OUTER JOIN dbo.AssetVehicle ON dbo.EsnAsset.AssetId = dbo.AssetVehicle.AssetId LEFT OUTER JOIN dbo.AssetCustomAttribute ON dbo.EsnAsset.AssetId = dbo.AssetCustomAttribute.AssetId LEFT OUTER JOIN dbo.AssetCustomAttributeDef ON dbo.AssetCustomAttribute.AssetTypeId = dbo.AssetCustomAttributeDef.AssetTypeId
I want to create sql for retrieving 10 records per time but need to know the total result matches. And I have previous and next button for retrieving previous or next 10 records.
We have a domain where all computers are on GMT(Greenwitch Mean Time). We have an access front end that timestamps certain fields according to the client time that the program is running on, but we will be moving our client workstations off of GMT time and keep our SQL Server on GMT time, and want to keep the timestamps GMT.
So, I wanted to know if it was possible to create a stored procedure that gets the Server's time and returns it to the Access frontend for entry into the timestamp fields?
Or, if anyone has a better idea of how to get the time from the server to use on the clients, I would greatly appreciate it!!!
I am a novice to this type of setup and I need advice.
We have three field offices currently using A VPN over DSL connection to a server in the main office. We use a program that has 11 licenses for all the users and will purcahse 2 more licenses with the upgrade. As you can seee, not all employees are users of the software and for the moent the 11 licenses are adequate. We have 25 computers including the server, 21 employees, 15 in main office and four in one field office and 2 in another. All computer workstations are WIN XP PRO and the server is currently running Server 2003.
The program we currently use is a client/network where the employees fille out the forms and then the data is saved on the main home based server. No data is local to the user. At the workstations, only a small kernel of the client software is installed but it is a significant size and over DSL it is relativel slow to make the connection and save the data to the home server. Speed of this connection is not the issue, however.
We are going to upgrade the current server later this year and install either Server 2008 Standard or Small Business Server.
Our issues are many and suffice it to say I am not sure what to do,but am asking for help only with this one.
Issues We may purchase an Enterprise version of software that we currently use. This requires SQL databses that we do not use in the present version.
Question. Do we need a Separate SQL server. The program developers say we should have a separate server, but the company does not want to purchsae a separate server because of cost. They want to use the single server for all users and as a data storage server for all other work related data not used by the main software. The program vendor says that there may be issues with this setup because we also may use, in the future, another program that may be server based and therte could be a "slowdown" in usage. This future program is not known to me a this time as they have not made this decision as yet so it does not enter into the current scenario.
I feel that a separate server for SQL is necessary because of the needs of each of the users in each of the field offices and the "load" they currently place on our current server.
Hi, My application needs to retrieve data from a table which has more than 15 lakh records. The records keep increasing in thousands every 15 days. Is there anyway i can reduce the time to retrieve? basically i have a select statement with a few conditions and a clause for the id's of these records.
I have built a Sales Forecast model to predict the sales value. Along with making historic predictions for previous time periods I also want to retrieve the actual sales values for those periods.
How can I achieve this in a time series model?
I also would like to know how do mining models store the data.
Do they store the data in the same table/view format as their respecive data source view or in the Model Content format.
I need to provide a minimum value over a 12 hour time range of data. I'm struggling with performance issues due to the amount of data. Currently I log about 100 devices reporting once per minute into a table. Also about once per minute I need to pull the minimum value reported for each device in the last 12 hours. Currently I'm maintaining a separate table with entries for just the last 12 hours and just performing a Select Min(Temp) Where DeviceID=x, but it already holds about 700,000 records at any given time. The number of devices will increase substantially and this will no longer be viable.
Sample Table ID DeviceID Temp InsertDate 1 10 55 04-28-2015 8:00 AM 2 65 74 04-28-2015 8:00 AM 3 44 23 04-28-2015 8:00 AM 4 10 87 04-28-2015 8:01 AM 5 65 65 04-28-2015 8:01 AM
Can anyone help me on this... when i select data from table using select statement it takes huge amount of time....The table contains 7 million entries and when i select by mentioning a criteria it takes around 45 secs..The system has 4GB RAM and Dual Processing CPU. The select statement does not contain any grouping and all..
Will it take this much time to retrieve data.?. The table does include an indexed field, So can anyone help me on the different things i can do to make the retrieval faster?
This isn't a performance type of question, or whose CPU is bigger, but I'm more interested in knowing what people use out there as far as monitor setups go.
The root of the question stems from working in large package where there are many components laid out on the work flow. What do you use to work with large layouts? I constantly find it troubling to view enough of my package and am always zooming out to see more of the package. However, when doing that, the text becomes unreadable, of course.
I currently use a dual-monitor setup using my laptop and a LCD flat screen.
Resolutions on the laptop is 1920 x 1200 and the LCD monitor is 1280 x 1024. This helps to keep windows and output screens on one monitor while keeping the work flow on the other. Even still, I wish I had more screen real estate.
I need to get all customer records with the most recent tDate. A customer should never have duplicate tDate records, as only one record per day is allowed per customer, yet there somehow there are duplicates. Given this, I need to get the record with the Max date and Max ID. the ID column is an auto-incrementing Identity column.Below is the code without the Max ID column logic
SELECT tCustID, MAX(tDate) AS tDate--get MAX tDate records FROM table1 GROUP BY tCustID
Have a table that list item#, date the standard cost went into effect and the standard cost. How do I find the difference in StdCost on the last EffectiveDate and second to last EffectiveDate. 5.59 (01/05/2015) minus 5.81 (09/29/.014) = -.22.
Hi There,This is related to a ms access database but since I use the SqlDataSource control I thought I should post here.I have a project that I was working on with this ms access db and using sql controls, everything was working just finesince one day I started getting "Object reference not set to an instance of an object" messages when I try to designa query or retrieve a schema, nothing works at design time anymore but at runtime everything is perfect, its a lotof work for me now to create columns,schemas and everything manually, I've tried reinstalling visualstudio, ado componentsbut nothing seems to fix it, did this ever happen to any of you guys?any tip is really appreciated thanks a lot
Nothing difficult, I just need a way to generate a new datetime column based on the column [PostedDate], datetime. So basically I want to truncate the time. Thanks a lot.
I'm building a site, and while stress testing it I received a few exceptions when the SQL Server was under relatively high load. Originally I was opening the connection when required in a particular Sub as follows (and then closing it when I was finished with it): If Not MyConnection.State = ConnectionState.Open Then MyConnection.Open() The probelm however was that from time to time the connection state was Opening instead of Closed or Open. So I am considering using the following piece of code instead: If MyConnection.State = ConnectionState.Connecting Then Do Until MyConnection.State = ConnectionState.Open Loop ElseIf MyConnection.State = ConnectionState.Broken Or MyConnection.State = ConnectionState.Closed Then MyConnection.Open() End If I'm a little worried about the Do...Loop in there, but I don't see how it should be a problem. Any thoughts?
Hi All, I have a column called TIER in my database which is a long string. There are piece of these strings that are separated by spaces like this: 'A3A00 A2B00 B1A00 C2C06 C3A06 C5A00 D2C00 G6B00 M2B00 M3B00 P7A00 T2A00 G4C00 G3C00 T5A06' How do I select the last 2 characters of the piece of string when the first 2 chacters are M2? I have the following: This is retruning me all the rows that have 'M2'. declare @code varchar (2)set @code = 'M2'select tier from companywhere tier like '%'+@code+'___ %' Any help is appreciated. Thank you in advance.
select sub1.*, case sub1.mdiff when sub1.mdiff<12 then 1 else 0 end as flag
error msg by query analyser Server: Msg 170, Level 15, State 1, Line 1 Line 1: Incorrect syntax near '<'. Server: Msg 156, Level 15, State 1, Line 12 Incorrect syntax near the keyword 'as'.
I have the following sqlDataSource. I wan't to display one piece of data, not a whole row, from it. I can find lots of information on putting it into a datagrid, but nothing on puttin one piece in a textbox. I cannot use a formview as we are embedding html in response.write and it breaks in a formview. Thanks.
<asp:SqlDataSource runat="server" ID="myEmpInfo" SelectCommand="Select di.EmpInfo,di.eth,gc.t_level From tblEmp di ,tblMisc gc Where di.empnum = @empnumand di.empnum = gc.empnum" DataSourceMode="DataReader" ConnectionString="<%$ ConnectionStrings : myConnectionString %>">
Hi All, I have a column in my table like so: 'D4B00 L2A00 L3A00 L6C00 P1C00 L2A28 P4B00 ' How do I check in SQL if any pieces have the first 3 character the same. In the above case, L2A is present twice. I need to do this because I need display disctinct items, therefore L2A needs to be displayed only once. Any help is appreciated. Thanks
I have created a procedure with several SQL statement, all are included in a transaction. Some of the code are "insert" in tables that are in remote server. for example:
procedure sp1 is on SERVER B. From SERVERA by linked server we have:
exec serverB.db_B.dbo.sp1 (from serverA the procedure sp1 is called)
CREATE procedures sp1 AS BEGIN TRANSACTION insert into T1 (col1) values (1) insert into serverA.db_A.dbo.T2 (col1) vales ('8vhrfvrf') insert into T3 (col1) values (3) COMMIT TRANSACTION GO
I would like to make that these piece of code ( insert into serverA.db_A.dbo.T2 (col1) vales ('8vhrfvrf') ) is out of transaction. My question is: Is it possible to exclude piece of code from a transction?
You ask me why this: because SQL server do not allow loopback transaction
First I want to say thanks to the folks how have helped me over the past week or two. I'm missing a crucial piece of insight. How do I read a single piece of data from a SqlDataSource which only hold one row of data into a declared variable? string zUserName = SqlDataSource.(get the value in the row that is labeled UserName) It really doesn't matter to me whether it is an SqlDataSource or some other data container that hold the data I've selected. My goal is to be able to read some data from some predefined datasource into a declared variable. If I am approaching this problem in the wrong way any advice or article links you could give me would be grealy appreciate. Thanks, Bill
All the column names in upper case are actually symptom names, and in those columns are values {NULL, 1, 2, 3, 4, 5} and they belong in a column, so the normalized structure should be like this:
CREATE TABLE Symptom ( PatientID INT NOT NULL, Cycle TINYINT NOT NULL, SymptomName VARCHAR(20) NOT NULL, -- from the source column *name* Grade TINYINT NOT NULL -- from the value in the column with the name in uppercase PRIMARY KEY (PatientID, Cycle, SymptomName));
I can untwist the repeating groups with the code I borrowed from Kenneth Fisher's article [ here ], but the part I'm having a harder time with is grabbing the information that's still left in the column name and integrating it into the solution...
I can retrieve all the column names that are in uppercase using this:
DECLARE @db_id int; DECLARE @object_id int; SET @db_id = DB_ID(N'SCRIDB'); SET @object_id = OBJECT_ID(N'SCRIDB.dbo.BadTox'); SELECT name AS column_name , column_id AS col_order FROM sys.all_columns WHERE name = UPPER(name) COLLATE SQL_Latin1_General_CP1_CS_AS AND object_id = @object_id;
but I can't figure out how to work it into this (that I built by mimicking Kenneth Fisher's article...):
ALTER PROC [dbo].[UnpivotMaxGradeUsingCrossApply] AS SELECT PatientID , Toxicity , MAX(Grade) AS MaxGrade
[code]....
The problem is that I need to extract the column names (where ToxicityName[n] would be). I can do that by querying the sys.all_columns view, but I can't figure out how to integrate the two pieces. About the only thing I have even dreamed up is to build the VALUES(...) statements dynamically from the values returned by the system view.
So how do I get both the value from the ToxicityName[n] column and the column name into my final data query?
I have a string column in a DB where it's values contain the following midway through the string ([DOCUMENTGUID] is a uniqueidentifier that is different for each row):
i have a datetime field in the post tables. I would like to get the records within the latest 7 days. Are there any functions for doing something like this? my current query is something like select * from post where creation_time .... Thank you
