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  • not all data insert in convert from excell to database

    - by Gold
    hi i have this code: ConnectString = @"Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + ExcelFile + ";Extended Properties=\"Excel 12.0 Xml;HDR=No\""; SheetName = SheetName.Substring(0, SheetName.Length - 5); OleDbConnection Connection = new OleDbConnection(); Connection.ConnectionString = ConnectString; try {Connection.Open();} catch (Exception EX) { MessageBox.Show(EX.Message); } OleDbDataAdapter Command = new OleDbDataAdapter("SELECT * FROM [" + SheetName + "$]", Connection); DataSet ExcelData = new DataSet(); try {Command.Fill(ExcelData);} catch (Exception EX) { MessageBox.Show(EX.Message); } finally { if (Connection.State != ConnectionState.Closed) Connection.Close(); } but not all the data in column 1 insert - i get empty data why ? what can be wrong ? thank's in advance

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  • How to use php variables (arrays) in mysql select statements?

    - by davidconn
    Hi everybody, How do you use a php variable (array) inside a mysql select statement? I am designing an auction site and currently working on a page that lets people view a list of all the current bids for an item. I want to display 3 columns: amountbid - the amount each bidder has bid for the item (held in tblbid) bidderid - the id of each bidder who has bid (found in tbluser) total_positivity_feedback - how many users have left positive feedback for the bidder (calculated from tblfeedback) To find the 'amount' and the 'bidderid' columns i pass the essayid URL parameter from the previous page. This works fine. Despite this, i can't display the total_positivity_feedback column for the various users who have made each bid. My mysql query looks like this: select tblbid.bidderid, tblbid.amount, (select count(tblfeedback.feedbackid) from tblfeedback WHERE tblfeedback.writerid = "ARRAY VARIABLE GOES HERE") AS total_positivity_feedback FROM tblbid WHERE tblbid.essayid = $essayid_bids I assume that the only way to accomplish this is to make the variable contain the bidderid's of those people who bid for that particular essay? I can't seem to work out how to do this tho?!? Many thanks for your help

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  • Find node level in a tree

    - by Álvaro G. Vicario
    I have a tree (nested categories) stored as follows: CREATE TABLE `category` ( `category_id` int(10) unsigned NOT NULL AUTO_INCREMENT, `category_name` varchar(100) NOT NULL, `parent_id` int(10) unsigned DEFAULT NULL, PRIMARY KEY (`category_id`), UNIQUE KEY `category_name_UNIQUE` (`category_name`,`parent_id`), KEY `fk_category_category1` (`parent_id`,`category_id`), CONSTRAINT `fk_category_category1` FOREIGN KEY (`parent_id`) REFERENCES `category` (`category_id`) ON DELETE SET NULL ON UPDATE CASCADE ) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_spanish_ci I need to feed my client-side language (PHP) with node information (child+parent) so it can build the tree in memory. I can tweak my PHP code but I think the operation would be way simpler if I could just retrieve the rows in such an order that all parents come before their children. I could do that if I knew the level for each node: SELECT category_id, category_name, parent_id FROM category ORDER BY level -- No `level` column so far :( Can you think of a way (view, stored routine or whatever...) to calculate the node level? I guess it's okay if it's not real-time and I need to recalculate it on node modification.

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  • Uploading an image file with Paperclip (in RoR) causing error.

    - by mtay
    This should be a simple thing to do, but I'm running into a wall and I'm not sure how to debug this response. In my Image model, I have: class Image < ActiveRecord::Base has_attached_file :image, :styles => { :display => "500x500>", :thumbnail => "95x95>"} Then in my Views, my form contains this: -form_for @image, :html => { :multipart => true } do |image| %tr %td.woc_left =label_tag :image, 'photo to upload', :class => 'required' %td.woc_center =image.file_field :image In my Mysql table, I have a column called "image_file_name" (string). However, when I try to upload an image and submit it, I see 2 errors prohibited this from being saved There were problems with the following fields: Image Paperclip::CommandNotFoundError Image Paperclip::CommandNotFoundError What am I doing wrong? Thank you for your help!

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  • Username correct, password incorrect?

    - by jonnnnnnnnnie
    In a login system, how can you tell if the user has entered the password incorrectly? Do you perform two SQL queries, one to find the username, and then one to find the username and matching (salted+hashed etc) password? I'm asking this because If the user entered the password incorrectly, I want to update the failed_login_attempts column I have. If you perform two queries wouldn't that increase overhead? If you did a query like this, how would you tell if the password entered was correct or not, or whether the username doesn't exist: SELECT * FROM author WHERE username = '$username' AND password = '$password' LIMIT 1 ( ^ NB: I'm keeping it simple, will use hash and salt, and will sanitize input in real one.) Something like this: $user = perform_Query() // get username and password? if ($user['username'] == $username && $user['password'] == $password) { return $user; } elseif($user['username'] == $username && $user['password'] !== $password) { // here the password doesn't match // update failed_login_attemps += 1 }

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  • Consolidating separate Loan, Purchase & Sales tables into one transaction table.

    - by Frank Computer
    INFORMIX-SE with ISQL 7.3: I have separate tables for Loan, Purchase & Sales transactions. Each tables rows are joined to their respective customer rows by: customer.id [serial] = loan.foreign_id [integer]; = purchase.foreign_id [integer]; = sale.foreign_id [integer]; I would like to consolidate the three tables into one table called "transaction", where a column "transaction.trx_type" [char(1)] {L=Loan, P=Purchase, S=Sale} identifies the transaction type. Is this a good idea or is it better to keep them in separate tables? Storage space is not a concern, I think it would be easier programming & user=wise to have all types of transactions under one table.

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  • How to easily get the unmatched condition in mysql

    - by leivli
    I have a "server" table which has a column named 'SN' in mysql, when do query to retrive servers with some sns from 'sn1' to 'sn10000', we can: select * from server where sn in ('sn1','sn2','sn3',...'sn10000'); If there is only one sn in 'sn1'-'sn10000' which not exists in database, then the query above will retrive 9999 rows of result. The question is how can I easily get which one in 'sn1'-'sn10000' is not exists in database except the additional work, such as handling the result with shell script etc. I have an ugly sql like below can use: select * from (select 'sn1' as sn union select 'sn2' union select 'sn3' .... union select 'sn10000') as SN where not exists (select id from server where server.sn=SN.sn); Is Anyone has other better methods? Thanks.

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  • User activity vs. System activity on the Index Usage Statistics report

    - by Zachary G Jensen
    I recently decided to crawl over the indexes on one of our most heavily used databases to see which were suboptimal. I generated the built-in Index Usage Statistics report from SSMS, and it's showing me a great deal of information that I'm unsure how to understand. I found an article at Carpe Datum about the report, but it doesn't tell me much more than I could assume from the column titles. In particular, the report differentiates between User activity and system activity, and I'm unsure what qualifies as each type of activity. I assume that any query that uses a given index increases the '# of user X' columns. But what increases the system columns? building statistics? Is there anything that depends on the user or role(s) of a user that's running the query?

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  • Controlled hyperlink hijaxing

    - by Izmoto
    I am working on a web application. I have a data grid with a 'commands' column that has hyperlinks for some common CRUD operations (Edit, Delete, etc). When a user clicks on say the Edit hyperlink, I retrieve the unique identifier for the data grid row and load a modal form dialog (i am using jQuery UI) so the user is able to edit the row data and subsequently close the modal form dialog at which point I refresh the page. Now, before the page is done refreshing, there's a chance that a user might click on the edit link again, and whenever that happens, 'hijaxing' fails. My question is how can i check that if a user clicks on a hyperlink and the page is refreshing, i delay until it is done refreshing, then i allow the 'hijax' to kick in.

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  • linq2sql left join with "multiselect"

    - by just_azho
    Hi, folks I'm trying to achieve following by linq2sql, but not successful. I've Member and Reference tables. DB is design in such a manner that Member can have multiple (=0) References. What I want as a result of query is, list (rows) of members, where all references of the member are "collected" in one column. What I had achieved is following query, but for this one there exist a row for each Reference. var refs = (from m in db.Members join r in db.References on m.PID equals r.PID into g from o in g.DefaultIfEmpty() select new { member = m, name = (o == null ? "" : o.NameSurname) }); I feel I need to insert SelectMany somewher :) Could you please give hints on achieving the goal?

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  • Using SQLAlchemy, how can I return a count with multiple columns

    - by Andy
    I am attempting to run a query like this: SELECT comment_type_id, name, count(comment_type_id) FROM comments, commenttypes WHERE comment_type_id=commenttypes.id GROUP BY comment_type_id Without the join between comments and commenttypes for the name column, I can do this using: session.query(Comment.comment_type_id,func.count(Comment.comment_type_id)).group_by(Comment.comment_type_id).all() However, if I try to do something like this, I get incorrect results: session.query(Comment.comment_type_id, Comment.comment_type, func.count(Comment.comment_type_id)).group_by(Comment.comment_type_id).all() I have two problems with the results: (1, False, 82920) (2, False, 588) (3, False, 4278) (4, False, 104370) Problems: The False is not correct The counts are wrong My expected results are: (1, 'Comment Type 1', 13820) (2, 'Comment Type 2', 98) (3, 'Comment Type 2', 713) (4, 'Comment Type 2', 17395) How can I adjust my command to pull the correct name value and the correct count?

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  • Can't use MySQL extract() function in the WHERE clause.

    - by UkraineTrain
    I've run the following query: UPDATE main_table, reference_table SET main_table.calc_column = (CASE WHEN main_table.incr = "6AM" THEN reference_table.col1+reference_table.col2+... WHEN main_table.incr = "12AM" THEN reference_table.col7+reference_table.col8+... WHEN main_table.incr = "6PM" THEN reference_table.col13+reference_table.col14+... ELSE reference_table.col19+reference_table.col20+...) WHERE main_table.month = extract(month from reference_table.thedate) AND main_table.day = extract(day from reference_table.thedate) I've used extract() function since my reference_table doesn't have month and day columns but has the date column named thedate. I've used the extract() function on the reference_table many times before successfully, so, I know that there's nothing wrong with my extract function syntax. However, in this instance, MySQL complains. It probably has to do with the fact that I've used in the WHERE clause. I know that this issue could get fixed if I added the month and day columns to the reference_table to avoid using the extract() function. However, I'm very reluctant to do that and would like to avoid it. How can I make it work?`

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  • mysql row counter

    - by David19801
    Hello, I have a mysql table. It has auto increment on the id. but I regularly delete rows so the numbers are all over the place. I need to get the last n rows out, but because of deletions, the common way of using the max of the autoincremented id column doesn't work well... 1 - Is their another way to get the bottom 50? 2 - Is their a way to get rows by actual row number? so if I have 4 rows labelled 1,2,3,4 delete row 2 then it will become 1,2,3 rather than 1,3,4?

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  • Strange postgresql behavior

    - by Sergey
    Hi can someone explain me why it works like this? = select client_id from clients_to_delete; ERROR: column "client_id" does not exist at character 8 but, when putting this inside an IN()... = select * from orders where client_id in(select client_id from clients_to_delete); it works! and select all rows in the orders table. Same when running delete/update. Why it doesn't produce an error like before? Thank you!

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  • Preserve trailing whitespace Sybase

    - by AngryWhenHungry
    I have a big chunk of textual data which I split and write multiple rows of a varchar(255) column of a table. Sometimes, the last character happens to be a space. When I read back this row, the trailing space is chopped and I get only 254 characters. This messes up my data when I append the next row to the end of this one. My code sends the full 255 char (incl space) to the DB API. How can I check that the trailing space is actually written to the table? I am not in a position to rewrite/redesign legacy code. Is there any setting - either in the DB, DB interface, read/write calls etc - that I can use to preserve the trailing space?

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  • Error when creating database in MySQL using Netbeans 6.8

    - by nix
    I am trying to create a database using MySQL statements in NetBeans 6.8. However, I keep getting Error code 1064. I don't know what the problem is really since the same statements work in NetBeans 6.0. Here is the error: Error code 1064, SQL state 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '; /*!40000 ALTER TABLE students ENABLE KEYS */; -- -- Definition of table `w' at line 1016 Line 46, column 1

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  • MYSQL - SQL query Getting single record for the similar records and populating other columns with which has more length

    - by Bujji
    Here is my case , I have a database table with below fields name place_code email phone address details estd others and example data if you look at the above example table First three records are talking about XYZ and place code 1020 . I want create a single record for these three records based on substring(name,1,4) place_code ( I am lucky here for all the similar records satisfies this condition and unique in the table .) For the other columns which record column length has max . For example again for the above 3 records email should be [email protected] , phone should be 657890 and details should be "testdetails" This should be done for all the table . (Some has single records and some has max 10 records ) Any help on query that helps me to get the desired result ? Thank You Regards Kiran

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  • Horizontal scroll in rich:panel to default right to left

    - by TaylorSmolik
    I have a rich:panel with a style="overflow: scroll" tag inside. By default, the scroll slides left to right. I am constantly adding a new dataTable to a dataGrid with the click of a button and I want the user to always see the most recent one, and since I have it set up so that each dataTable is added as a column to the dataGrid, the most recent one will always be on the right side of the dataGrid. Is there a way I can default the scroll to go right to left? Or maybe creating the columns from right to left?

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  • PHP: report table with date gaps

    - by Daniel
    Hi. I have a table in DB which contains summaries for days. Some days may not have the values. I need to display table with results where each column is a day from user selected range. I've tried to play with timestamp (end_date - start_date / 86400 - how many days in report, then use DATEDIFF(row_date, 'user_entered_start_date') and create array from this indexes), but now I've got whole bunch of workarounds for summer time :( Any examples or ideas how to make this correct? P.S. I need to do this on PHP side, because DB is highly loaded.

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  • Finding records within a 5 min time interval in SQL

    - by Mellonjollie
    I have a table with over 100,000 rows that contain the following columns: ID, Time, and Boolean. The time column tracks time down to the second. I need a query that will find all instances of Boolean = 1 for every 5 minute interval of time from the start of the table to the end, then group the count by time interval. The table represents 4 hours of data, so I should get 48 rows of results. I'm using MS SQL Server. I've tried a few approaches, but the time interval logic is giving me a hard time.

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  • Problem with nhibernate join

    - by MexicanHacker
    I'm trying to do a join like this using fluent nhibernate: Id(x => x.Id); Map(x => x.SourceSystemRecordId,"sourceSystemRecord_id"); Then Join("cat.tbl_SourceSystemRecords", SourceSystemRecords); But, it seems I don't have a way to specify the column I want to join with from the first table, in this case I need to join on SourceSystemRecordId and not on Id Is there any way I can specify this? I tried References() but that requires me to create an object for this relationship, what I need is to aggregate the columns in sourcesystem records to the ones in the main table.

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  • SQL insert default value

    - by Stan
    Say if I have a table like CREATE TABLE [Message] ( [MessageIdx] [int] IDENTITY (1, 1) NOT NULL , [Message] [varchar] (1024) COLLATE Latin1_General_CI_AS NOT NULL , [ValidUntil] [datetime] NULL , CONSTRAINT [PK_Message] PRIMARY KEY CLUSTERED ( [MessageIdx] ) WITH FILLFACTOR = 90 ON [PRIMARY] ) ON [PRIMARY] GO I am trying to insert value without specify column names explicitly. Below statement causes error. How can I do that? Thanks. set identity_insert caconfig..fxmessage on; insert into message values (DEFAULT,'blah',DEFAULT); set identity_insert caconfig..fxmessage off;

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  • How to authenticate a user using SQL

    - by Tom
    I have an DLL which is constantly connected to a SQL Server instance. The server itself is connected with "admin" permissions, but "normal" users should be able to access the server with their own username and password. The server would still be connected a "admin". I just want to check if the user can access the database. Is there a way to authenticate the user using a SQL query? It would of course be possible to add a encrypted "password" column to a database table for users, but I would prefer not having to do that.

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  • Getting age from an encrypted DOB field

    - by Mailforbiz
    Hi all Due to certain compliance requirements, we have to encrypt the user DOB field in the database. We also have another requirement to be able to search a user by his age. Our DB doesn't support transparent encryption so encryption will handled by the application. Any good ideas on how to allow for searching by age? One thought is to save the YOB in a separate column in cleartext and still be able to comply to our compliance requirement. Aside from that, any other design strategy that would help? Thanks in advance!

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  • Check for duplicate rows in 2 columns before update

    - by user3891378
    I have a table with 4 columns, and I need to check to see if a Column Pair exists before inserting a row into the database: INSERT INTO dbo.tblCallReport_Detail (fkCallReport, fkProductCategory, Discussion, Action) VALUES (?, ?, ?, ?) The pair in question is fkCallReport and fkProductCategory. For example if the row trying to be inserted has fkCallReport = 3 and fkProductCategory = 5, and the database already has both of those values together, it should display an error and ask if they would like to combine the Disuccsion and Action with the current record. Keep in mind I'm doing this in VBA Access 2010 and am still very new.

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