Search Results

Search found 49224 results on 1969 pages for 'database mirroring sql se'.

Page 401/1969 | < Previous Page | 397 398 399 400 401 402 403 404 405 406 407 408  | Next Page >

• Anyway to get a value similar to @@ROWCOUNT when TOP is used?

  - by cfeduke

  If I have a SQL statement such as: SELECT TOP 5 * FROM Person WHERE Name LIKE 'Sm%' ORDER BY ID DESC PRINT @@ROWCOUNT -- shows '5' Is there anyway to get a value like @@ROWCOUNT that is the actual count of all of the rows that match the query without re-issuing the query again sans the TOP 5? The actual problem is a much more complex and intensive query that performs beautifully since we can use TOP n or SET ROWCOUNT n but then we cannot get a total count which is required to display paging information in the UI correctly. Presently we have to re-issue the query with a @Count = COUNT(ID) instead of *.

  Read the article

• What is the most efficient way to read many bytes from SQL Server using SqlDataReader (C#)

  - by eccentric

  Hi everybody! What is the most efficient way to read bytes (8-16 K) from SQL Server using SqlDataReader. It seems I know 2 ways: byte[] buffer = new byte[4096]; MemoryStream stream = new MemoryStream(); long l, dataOffset = 0; while ((l = reader.GetBytes(columnIndex, dataOffset, buffer, 0, buffer.Length)) > 0) { stream.Write(buffer, 0, buffer.Length); dataOffset += l; } and reader.GetSqlBinary(columnIndex).Value The data type is IMAGE

  Read the article

• Separating data from the UI code with Linq to SQL entities

  - by Sir Psycho

  If it's important to keep data access 'away' from business and presentation layers, what alternatives or approaches can I take so that my LINQ to SQL entities can stay in the data access layer? So far I seem to be simply duplicating the classes produced by sqlmetal, and passing those object around instead simply to keep the two layers appart. For example, I have a table in my DB called Books. If a user is creating a new book via the UI, the Book class generated by sqlmetal seems like a perfect fit although I'm tightly coupling my design by doing so.

  Read the article

• Improve SQL strategy - denormalize in object-children-images case

  - by fesja

  Hi, I have a Tour object which has many Place objects. For the list of tours, I want to show some info of the tour, the number of places of the tour, and three Place's images. Right one my SQL queries are (i'm using Doctrine with Symfony on MySQL) get Tour get Tour 1 places get Tour 2 places get Tour 3 places ... get Tour n places If I have a three Tour list, it's not so bad; but I'm sure it can get bad if I do a 10-20 tour-list. So, thinking on how to improve the queries I've thought of several measures: Having a place count cache Storing the urls of three images on a new tour field. The problem with 2. is that if I change the image, I have to check all the tours to update that image for another one. What solution do you think is best to scale the system in a near future? Any other suggestion. thanks!

  Read the article

• SQL SELECT multiple INNER JOINs

  - by Noam Smadja

  The SELECT statement includes a reserved word or an argument name that is misspelled or missing, or the punctuation is incorrect its Access database.. i have a Library table, where Autnm Topic Size Cover Lang are foreign Keys each record is actually a book which has its properties such as author and stuff. i am not quite sure i am even using the correct JOIN.. quite new with "complex" SQL :) SELECT Library.Bknm_Hebrew, Library.Bknm_English, Library.Bknm_Russian, Library.Note, Library.ISBN, Library.Pages, Library.PUSD, Author.ID AS [AuthorID], Author.Author_hebrew AS [AuthorHebrew], Author.Author_English AS [AuthorEnglish], Author.Author_Russian AS [AuthorRussian], Topic.ID AS [TopicID], Topic.Topic_Hebrew AS [TopicHebrew], Topic.Topic_English AS [TopicEnglish], Topic.Topic_Russian AS [TopicRussian], Size.Size AS [Size], Cover.ID AS [TopicID], Cover.Cvrtyp_Hebrew AS [CoverHebrew], Cover.Cvrtyp_English AS [TopicEnglish], Cover.Cvrtyp_Russian AS [CoverRussian], Lang.ID AS [LangID], Lang.Lang_Hebrew AS [LangHebrew], Lang.Lang_English AS [LangEnglish], FROM Library INNER JOIN Author ON Library.Autnm = Author.ID INNER JOIN Topic ON Library.Topic = Topic.ID INNER JOIN Size ON Library.Size = Size.ID INNER JOIN Cover ON Library.Cover = Cover.ID INNER JOIN Lang ON Library.Lang = Lang.ID Thx in advance

  Read the article

• Selecting the first row out of many sql joins

  - by IcedDante

  Alright, so I'm putting together a path to select a revision of a particular novel: SELECT Catalog.WbsId, Catalog.Revision, NovelRevision.Revision FROM Catalog, BookInCatalog INNER JOIN NovelMaster INNER JOIN HasNovelRevision INNER JOIN NovelRevision ON HasNovelRevision.right = NovelRevision.obid ON HasNovelRevision.Left=NovelMaster.obid ON NovelMaster.obid = BookInCatalog.Right WHERE Catalog.obid = BookInCatalog.Left; This returns all revisions that are in the Novel Master for each Novel Master that is in the catalog. The problem is, I only want the FIRST revision of each novel master in the catalog. How do I go about doing that? Oh, and btw: my flavor of sql is hobbled, as many others are, in that it does not support the LIMIT Function.

  Read the article

• using regular expression / Remove special characters with linq to sql

  - by Prasad

  How can i use regular expressions with linq to sql in the asp.net mvc(C#) application? The columns in my MSSQL table (Products) has some special characters like (, - % ',.....). While searching for a product i need to search without that special chareters. For ex.: I have a product say (ABC-Camp's / One), when i search for "abccamp", it should pull the product. I am trying the query like: from p in _context.pu_Products where p.User_Id == userId && p.Is_Deleted == false && p.Product_Name.ToLower().Contains(text.ToLower()) select new Product { ProductId = p.Product_Id, ProductName = p.Product_Name.Replace("’", "").Replace("\"", ""), RetailPrice = p.Retail_Price ?? 0M, LotSize = p.Lot_Size > 0 ? p.Lot_Size ?? 1 : 1, QuantityInHand = p.Quantity_In_Hand ?? 0 } But i need to search without any special characters...

  Read the article

• sql data source re binding question

  - by Keith

  In my gridview after an insert operation has been done I am filtering the sqldatasource by ID. I am getting an error that the item drop down box selected value is not in the list. To test my theory I created a new sql data source with only the select statement and after the insert operation I am binding it to my grid view and filtering by Id and I get my result. The question Having a second data source is not the solution so is it possible that there is some way to use sqldatasource1? what I tried is sqldatasource.databind() and gridview.databind() on the inserted and inserting metheds in many test cases but still that doesnt work. I dont have any filters applied on the original data source?

  Read the article

• [SQL] Getting the sum of several columns from two tables

  - by romaintaz

  I want to get the sum of several columns from 2 different tables (these tables share the same structure). If I only consider one table, I would write this kind of query: SELECT MONTH_REF, SUM(amount1), SUM(amount2) FROM T_FOO WHERE seller = XXX GROUP BY MONTH_REF; However, I would like to also work with the data from the table T_BAR, and then have a select query that return the following columns: MONTH_REF SUM(T_FOO.amount1) + SUM(T_BAR.amount1) SUM(T_FOO.amount2) + SUM(T_BAR.amount2) everything grouped by the value of MONTH_REF. Note that a record for a given MONTH_REF can be found in one table but not in the other table. In this case, I would like to get the sum of T_FOO.amount1 + 0 (or 0 + T_BAR.amount1). How can I write my SQL query to get this information? For information, my database is Oracle 10g.

  Read the article

• INSERT SQL in Java

  - by Pierre

  Hello. I have a Java application and I want to use SQL database. I have a class for my connection : public class SQLConnection{ private static String url = "jdbc:postgresql://localhost:5432/table"; private static String user = "postgres"; private static String passwd = "toto"; private static Connection connect; public static Connection getInstance(){ if(connect == null){ try { connect = DriverManager.getConnection(url, user, passwd); } catch (SQLException e) { JOptionPane.showMessageDialog(null, e.getMessage(), "Connection Error", JOptionPane.ERROR_MESSAGE); } } return connect; } } And now, in another class I succeeded to print my values but when I attempt to insert a value nothing is happening ... Here's my code : try { Statement state = SQLConnection.getInstance().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY); Statement state2 = SQLConnection.getInstance().createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_UPDATABLE); state2.executeUpdate("INSERT INTO table(field1) VALUES (\"Value\")"); // Here's my problem ResultSet res = state.executeQuery("SELECT * FROM plateau");

  Read the article

• How to get a list of users for all instance's databases

  - by stee1rat

  I guess the procedure should be something like this: declare @db varchar(100) declare @user varchar(100) declare c cursor for select name from sys.sysdatabases open c fetch next from c into @db while @@fetch_status = 0 begin print @db exec ('use ' + @db) declare u cursor for select name from sys.sysusers where issqlrole <> 1 and hasdbaccess <> 0 and isntname <> 1 open u fetch next from u into @user while @@fetch_status = 0 begin print @user fetch next from u into @user end print '--------------------------------------------------' close u deallocate u fetch next from c into @db end close c deallocate c But the problem is that exec ('use ' + @db) doesn't work. And i always get user list of currently chosen database. How should i fix that? P.S.: I want this code to work on both 2000 and 2005 sql servers.

  Read the article

• casting odd smallint time to to datetime format.

  - by c6400sc

  Hello everyone, I'm working with a db (SQL server 2008), and have an interesting issue with times stored in the db. The DBA who originally set it up was crafty and stored scheduled times as smallints in 12-hour form-- 6:00AM would be represented as 600. I've figured out how to split them into hours and minutes like thus: select floor(time/100) as hr, right(time, 2) as min from table; What I want to do is compare these scheduled times to actual times, which are stored in the proper datetime format. Ideally, I would do this with two datetime fields and use datediff() between them, but this would require converting the smallint time into a datetime, which I can't figure out. Does anyone have suggestions on how to do this? Thanks in advance.

  Read the article

• Take advantage of multiple cores executing SQL statements

  - by willvv

  I have a small application that reads XML files and inserts the information on a SQL DB. There are ~ 300 000 files to import, each one with ~ 1000 records. I started the application on 20% of the files and it has been running for 18 hours now, I hope I can improve this time for the rest of the files. I'm not using a multi-thread approach, but since the computer I'm running the process on has 4 cores I was thinking on doing it to get some improvement on the performance (although I guess the main problem is the I/O and not only the processing). I was thinking on using the BeginExecutingNonQuery() method on the SqlCommand object I create for each insertion, but I don't know if I should limit the max amount of simultaneous threads (nor I know how to do it). What's your advice to get the best CPU utilization? Thanks

  Read the article

• SQL finding overlapping of times pass midnight (across 2 days)

  - by janechii

  Hi everyone, I know there are lots of these types of questions, but i didn't see one that was similar enough to my criteria. So i'd like to ask for your help please. The fields i have are just start and end which are of time types. I cannot involve any specific dates in this. If the time ranges don't go pass midnight across day, i'd just compare two tuples as such: end1 > start2 AND start1 < end2 (end points touching are not considered overlapped here.) But when I involve time range that pass (or at) midnight, this obviously doesn't work. For example, given: start | end --------+-------- 06:00PM | 01:00AM 03:00PM | 09:00PM Without involving dates, how can i achieve this, please. My assumption is, if end is less than start, then we're involving 2 days. I'm trying to do this in plain standard SQL, so just a simple and concise logic in the WHERE clause. Thank you everyone!

  Read the article

• Both sql LAST_INSERT_ID() and PHP insert_id return 0

  - by jakubplus

  I've been searching google a lot for this issue and really found nothing. People just keep copying MySQL documentation on last_insert_id and nothing else. I've got an issue regarding last_insert_id, because for both situations (php & sql) it returns 0. YES: I've set a PRIMARY & UNIQUE field with AUTO_INCREMENT value YES: i've done some inserting before NO: Making double query with INSERT AND SELECT LAST... doesn't work. I've created a class Db for maintaining connection & query: class Db { public function connect() { $db = new mysqli('','','','',''); ... return $db; } public function insert() { $this->connect()->query("INSERT INTO bla bla..."); return $this->connect()->insert_id; } } And it doesn't work.

  Read the article

• Can't INSERT INTO SELECT into a table with identity column

  - by Eran Goldin

  In SQL server, I'm using a table variable and when done manipulating it I want to insert its values into a real table that has an identity column which is also the PK. The table variable I'm making has two columns; the physical table has four, the first of which is the identity column, an integer IK. The data types for the columns I want to insert are the same as the target columns' data types. INSERT INTO [dbo].[Message] ([Name], [Type]) SELECT DISTINCT [Code],[MessageType] FROM @TempTableVariable END This fails with Cannot insert duplicate key row in object 'dbo.Message' with unique index 'IX_Message_Id'. The duplicate key value is (ApplicationSelection). But when trying to insert just Values (...) it works ok. How do I get it right?

  Read the article

• Speed up this query joining to a table multiple times

  - by Mongus Pong

  Hi, I have this query that (stripped right down) goes something like this : SELECT [Person_PrimaryContact].[LegalName], [Person_Manager].[LegalName], [Person_Owner].[LegalName], [Person_ProspectOwner].[LegalName], [Person_ProspectBDM].[LegalName], [Person_ProspectFE].[LegalName], [Person_Signatory].[LegalName] FROM [Cache] LEFT JOIN [dbo].[Person] AS [Person_Owner] WITH (NOLOCK) ON [Person_Owner].[PersonID] = [Cache].[ClientOwnerID] LEFT JOIN [dbo].[Person] AS [Person_Manager] WITH (NOLOCK) ON [Person_Manager].[PersonID] = [Cache].[ClientManagerID] LEFT JOIN [dbo].[Person] AS [Person_Signatory] WITH (NOLOCK) ON [Person_Signatory].[PersonID] = [Cache].[ClientSignatoryID] LEFT JOIN [dbo].[Person] AS [Person_PrimaryContact] WITH (NOLOCK) ON [Person_PrimaryContact].[PersonID] = [Cache].[PrimaryContactID] LEFT JOIN [dbo].[Person] AS [Person_ProspectOwner] WITH (NOLOCK) ON [Person_ProspectOwner].[PersonID] = [Cache].[ProspectOwnerID] LEFT JOIN [dbo].[Person] AS [Person_ProspectBDM] WITH (NOLOCK) ON [Person_ProspectBDM].[PersonID] = [Cache].[ProspectBDMID] LEFT JOIN [dbo].[Person] AS [Person_ProspectFE] WITH (NOLOCK) ON [Person_ProspectFE].[PersonID] = [Cache].[ProspectFEID] Person is a huge table and each join to it has a pretty significant hit in the execution plan. Is there anyway I can adjust this query so that I am only linking to it once, or at least get SQL Server to scan through it only once?

  Read the article

• Return multiple results using dynamic sql (postgresql 8.2)

  - by precose

  I want to loop through schemas and get a result set that looks like this: Count 5 834 345 34 984 However, I can't get it to return anything using dynamic sql...I've tried everything but 8.2 is being a real pain. Here is my function: CREATE OR REPLACE FUNCTION dwh.adam_test4() RETURNS void LANGUAGE plpgsql AS $function$ DECLARE myschema text; rec RECORD; BEGIN FOR myschema IN select distinct c.table_schema, d.p_id from information_schema.tables t inner join information_schema.columns c on (t.table_schema = t.table_schema and t.table_name = c.table_name) join dwh.sgmt_clients d on c.table_schema = lower(d.userid) where c.table_name = 'fact_members' and c.column_name = 'debit_card' and t.table_schema NOT LIKE 'pg_%' and t.table_schema NOT IN ('information_schema', 'ad_delivery', 'dwh', 'users', 'wand', 'ttd') order by table_schema LOOP EXECUTE 'select count(ucic) from '|| myschema || '.' ||'fact_members where debit_card = ''yes''' into rec; RETURN rec; END LOOP; END $function$

  Read the article

• Show parts of the result of an SQL statement using PHP

  - by mouthpiec

  I have an SQL query which returns a set of data (around 40-50 tuples). I would like to display the results 5 at a time on an HTML page using PHP. I already managed to have the right SELECT statement, but i am having problems to display the results 5 by 5 using a "more" button. Can you please help? Note that every time i call the query, the data is being randomized, so it is not possible to set limits and call the query again. I have to find the method to store the results somewhere, and then show them 5 by 5.

  Read the article

• FastObjects.NET(is an OODB from Versant) performence in Real Scenerios?

  - by Lalit

  FastObjects.NET Saves the whole class object(if marked with attribute Persistent) at once in file system(using serilization or similar technology). They are promissing that it is even faster then normal SQL DB approach. My team also thought it is better and faster to save the whole object once instead of each field one by one. Defination of their website: FastObjects .NET 10.0 fully conforms to the Microsoft.NET 2.0 framework. Tightly integrated with Visual Studio 2005, it offers a developer-friendly, object-oriented alternative to a relational database for .NET persistence. I want to have your experiences of using FastObjects in production scenerio? They are promising for Indexing/Transaction/clustoring/replication.

  Read the article

• How do I switch the table that is queried with linq-to-sql

  - by Ian Ringrose

  We have two tables with the same set of columns; depending on the “type” of object the value is stored in one of the two tables. I wish to use common code to access these two tables. If I was using “raw sql” I could just use String.Format() to change the table name. (Likewise for updates etc) The two separate tables are needed as the data access patterns are very different for the common queries on the two tables and therefore different indexes are needed. “Views” and “instead of triggers” etc to make the tables look like a single table are not liked here. A lot of our customers use low end version of SqlServer so we cannot use partition tables.

  Read the article

• Linq.Where-to-SQL on a text field comparing to a list of values

  - by StampedeXV

  Customer.text is a field in an T-SQL DB (that I do not control and thus may not alter) of type "text". I'd like to do something like this: List<string> compare = new List<string>(); compare.Add("one"); compare.Add("two"); var q = from t in customer where t.text.Contains( compare.First()) select t; this will work. But now I'd like to do something like: (!NOT WORKING!) var q = from t in customer where compare.Contains( t.text ) select t; How can I achieve this? Is it even possible?

  Read the article

• [SQL] Query returning more than one row with the same name

  - by Neutralise

  I am having trouble with an SQL query returning more than one row with the same name, using this query: SELECT * FROM People P JOIN SpecialityCombo C ON P.PERSONID = C.PERSONID JOIN Speciality S ON C.GROUPID = S.ID; People contains information on each person, Specialty contains the names and ID of each specialty and SpecialityCombo contains information about the associations between People and their Speciality, namely each row has a PERSONID and a Speciality ID (trying to keep it normalised to some extent). My query works in that it returns each Person and the name of their specialty, but it returns n rows for the number of specialitys they want, because each specialty returns the same row 'name'. What I want is it to return just one row containing each speciality. How can I do this?

  Read the article

• SQL query not working

  - by Ziv

  hi, I'm trying to create a query in an access database for a C# dataset using the query editor but the created method says there is a problem and isn't created correctly. SELECT Discs.* FROM Discs WHERE (Title=@Title OR @Title IS NULL) AND (Type=@Type OR @Type IS NULL) AND (ContainerID=@ContainerID OR @ContainerID IS NULL) AND NOT (@Title IS NULL AND @Type IS NULL AND @ContainerID IS NULL) the error is: Generated SELECT statement. Error in WHERE clause near '@'. Unable to parse query text. the generated select method doesn't have any parameters and is unusable. I've tried the exact same SQL statement in the access query and it worked flawlessly, what am I supposed to be doing differently when transferring it to C#?

  Read the article

• MS SQL Specific Tables Hanging at Queries

  - by Jonn

  I have SQL Server 2008. I run a query in a table on a database. The weirdest thing keeps happening. I run a simple select statement on the table. I know there are 62 rows in the table but it gets stuck at row 48 and goes on "querying...". Waited already for hours and it didn't move on from there. I only know of two programs, and one reporting service connecting to that particular table and one other user. Does anyone have any idea on what could be causing this and how I could trace the source of the lock on that table? As a side note, I noted that the logs only had a notice that Autogrow failed the day before I checked. Could this have something to do with it?

  Read the article

< Previous Page | 397 398 399 400 401 402 403 404 405 406 407 408  | Next Page >