Home : Bytes IT Community / View Full Version : .NET XML


Pages : 1 2 [3] 4 5 6 7 8 9 10 11 12

  1. Detailed ASP.Net info not displaying in browser
  2. Traversing XML tree - but how do I get the leafs only?
  3. XML, XSD - Nesting Question
  4. Finding Children with XmlReader
  5. NET Client calling Axis web service
  6. XML document question
  7. XML Appearance in Visual Studio 2005 versus Visual Studio 2003
  8. XPath Generation Tool
  9. Serializing and DeSerializing the list of Entities
  10. XML Transform
  11. How to read "xmlns" from XML
  12. XPath as XML attribute
  13. XmlSerializerNamespaces not working the same in dotnet 2.0 as
  14. XmlSerializerNamespaces not working the same in dotnet 2.0 as
  15. What is the best way to parse and validate an arbitary XML documen
  16. Validate Values
  17. XmlSchemaCollection and schema imports question
  18. inserting a node
  19. DataSet row to a Object Array Casting issue. Boolean
  20. XML Web Service Output
  21. Xml document Node with Multiple NameSpace
  22. Refreshing Information on an ASPX Page? Easy?????
  23. XPathNavigator.Select with a document that has default namespace only
  24. Need to group elements using XSLT
  25. Retrieve embedded XML parts from .vbs file
  26. converting the xml to string
  27. xml schema to C-sharp classes
  28. XPathNodeIterator.Count Performance Issues
  29. How to get XmlType of a node from in-line schema
  30. collegare ad un dll un programma console
  31. Future XSLT/XPath features in .NET Framework
  32. how do i change a value of a node?
  33. EASY, RIGHT? : Retrieving SQL Data as an XML Document
  34. XML & Relational Database
  35. Serializing multiple objects in one XML document
  36. crea oggetto
  37. Typed dataset generation with XSD and CategoryAttribute
  38. XPathNavigator.SelectChildren(XPathNodeType.Attribute) doesn't work?
  39. encoding type for existing .xml doc
  40. Sort XML Into Hierarchy
  41. Flat searching in XML document
  42. System.Xml.Xsl.XslLoadException: XSLT compile error.
  43. Need help for msdata expression = "IIF
  44. XSLT and SAX.
  45. ArrayList no element
  46. What's the difference?
  47. Geeting devide by zero error
  48. ISNULL property
  49. XmlSerializationReader errors out trying to create abstract class
  50. How to clean 0x0E value from file when using XSL?
  51. how to print selected nodes path
  52. Retrieving default values specified from XML Schema file
  53. order-by is an invalid attribute for the "xsl:for-each" element
  54. Client Certificate Authorization in Web Services
  55. Setting default namespace/validating schema w/uncooperative xml?
  56. is there an xPath-operator NOT?
  57. How to read xml to array using javascript
  58. need help to figure out what to do with this XML
  59. Loading DataSet from XML where XSD imports other schemas
  60. The file is damaged and could not be repaired. & pdf & MS XML v2
  61. Writing xmlns using WriteAttributeString
  62. Woah
  63. Classes generated by XSD.exe
  64. XML Serialization, collection with parental links
  65. Need Help with INI app
  66. XslCompiledTransform load compile error
  67. Deserialize object from one line of XML
  68. XML serialization via XmlWriter creates 3 weird bytes
  69. Replace Empty Node
  70. Validate against XML doc already in memory
  71. Making a XmlElement Order property on .NET 1.1
  72. link to other page from xsl
  73. String to XML
  74. xsd:unique - validate attriubte value for whole
  75. External objects
  76. Request/Response XML to a remote server without using IIS
  77. How does XmlSchemaValidationFlags.ProcessSchemaLocation actually work?
  78. How to create nested nodes in XML in C#
  79. What is the quickest way to get an xml based dataset to add entries to SQL Server?
  80. lettura nodo
  81. How To Add Streaming Video to your web-page
  82. How to generate xsd file using <xsd: and not <xs:
  83. XML Serialization
  84. Embarrasingly easy question
  85. Why can I not XPath to this element in a schema
  86. validation errors
  87. Qu
  88. About xml:space="preserve"
  89. how to add more variables into arraylist when read another xml fil
  90. KADER
  91. inserting a text into xml file
  92. xs:all, xs:choice, xs:sequence, none seem to fit
  93. Need to extract XML or SGML entities from a Unicode text
  94. New to xml - what's wrong with my transform
  95. Xpath equivalent to select in statement in sql
  96. Xpath equivalent to select in for sql server??
  97. XslCompiledTransform closing input tag
  98. XslTransform not excluding default namespace despite exclude-result-prefixes attribute?
  99. XSLT : Exclude one NODE in Template
  100. XPath problem
  101. XMLDesigner XSD DataSet Order with Relationships
  102. Xml Serialization, properties and 'new'
  103. Setting XML returned by a Web Service to an XML Data Source
  104. Help with Extension Objects in XSLT with C# .NET 1.1
  105. Signing a soap message
  106. xsd serialization and .net names of duplicate elements
  107. Write XML File
  108. Microsoft XML Diff/Patch -- how to output differences
  109. Simple XSLT Question?
  110. how do you insert an element into an xml document with namespace
  111. XmlReader.Create returns none
  112. Use of hexadecimal 0x1d in XML Visual studio 2005
  113. XmlSchemaImport and XmlSchema.Write
  114. Data types for XmlElement and XmlAttribute
  115. suggested ways to manipulate XML files in .Net?
  116. can't load xml containing an encoded control code
  117. Webservice for J2EE & .NET application
  118. Built-in ToXPathString()-type method
  119. how do you evalute a xpath query with xml tag like this <bac:BACne
  120. XmlDocument load question
  121. Help with parsing XML document.
  122. <<<WebParts>>>
  123. Creating multiple documents
  124. Using XmlDataSource with templateControls
  125. ImportXML Question
  126. XmlSchema Validation Error
  127. Xml validation - Should fail but does not
  128. Load chunk of xmldata in datagrid
  129. Trouble accessing web service from behind ISA
  130. Format Xml Document in VS2005
  131. Convert schema to an xml document
  132. Need Attribute help
  133. Writing Xml from XmlReader
  134. Problems with XmlNodeList
  135. XmlReader and LineNumber
  136. XML serialization of illegal character entities
  137. Webmethod returned String to XML
  138. How to create xml node like this, thanks
  139. How to omit XmlTypeAttributes from List<T> class Properties? xsi:t
  140. Problem with XML Scheme Facet
  141. XPathNavigator and name()
  142. Follow up question on hiding web service functions
  143. how do you read in data from excel spreadsheet for xml
  144. A Simple Schema : What is wrong?
  145. Unable to populate RadioButtonList in a Repeater using an XmlDataSource
  146. Get XSD from ASMX
  147. Get valid elements using XmlSchema - .NET
  148. Keys and references
  149. " and ' is not XML-ified
  150. Detail XML Table
  151. Problem when Loading XSL file using XslCompiledTransform
  152. help! Error: The XML element is already in the current scope...
  153. problems with encoding for different locales
  154. XmlResolver.Credentials
  155. Client calls a web method with missing parameter
  156. Invalid carachter loading xml
  157. Parse XMLBean in VB.NET?
  158. XPath string
  159. Insert Image into Excel HTM file or XSLT transformation file
  160. TOP clause with XPath
  161. Variable in XPath?
  162. new to xml - sitemap help
  163. error generating ... Xml document (when calling web service)
  164. XPath performance
  165. Move node?
  166. XForms Plug-In
  167. XML Serialization or XMLReader for binary object in VB.NET???
  168. VS 2005 Com Interop Exception in Web Service
  169. Insert / delete ?
  170. Encrypting XML in .NET 1.1
  171. How do I parse an XML file
  172. new xml file is larger than the original
  173. MS Access reports to XML to .NET
  174. XML Attribute
  175. Importing XML data into SQL Server 2005
  176. How to get needed data from XML document
  177. single quote xml value
  178. XML serialization attribute help.
  179. XML merging
  180. insert xml element in a speicific location
  181. using Xmlserializer for Char datatype gives problems
  182. Using get_documentElement cause exception in Application exit
  183. SOAP, Web services and XML
  184. Force the prefix of the document element
  185. xml pushing job postings
  186. We are looking for XML/Soap/VXML expertsd to work in US as well as in India
  187. The correct way to set XSD namespaces?
  188. Why does VS not format an XML document?
  189. XSD help
  190. XML Config File
  191. What do I load ?
  192. XmlSerializer: Dealing with an evolving class
  193. XML compression?
  194. Can you do this?
  195. ValidationType.Auto and reading schema attribute
  196. System.xml.xmlnode class and XSD file
  197. PROBLEM WITH MAXOCCURS ATTRIBUTE
  198. MSPersisted XML ...
  199. selectNodes question
  200. Sort xml?
  201. Using Dynamic XML as a datasource of DataRepeater
  202. XSD Validation error: "The element 'x...' cannot contain text
  203. Validating XML in a WebMethod parameter
  204. Retrieving tooltiptext values from an xml file
  205. Including XmlDocument fragments in an XmlTextWriter
  206. Substring XPath
  207. Namespace agnostic parser?
  208. Parse Nested Elements to Single DataGrid
  209. cdata-section-elements being ignored?
  210. Programmatic access to VS IDE tooltip info
  211. convert image encoded as string to oleobject
  212. Can a schema be written to check for this?
  213. The custom tool 'MSDataSetGenerator' failed while processing the f
  214. SignedXml, X509Certificate2 and certificates with *Strong* protection
  215. Couldn't find MSVCR80.dll (required by...\OFFICE12\MSOXMLMF.DLL)
  216. How to hide available web service function declares
  217. XmlSerializer Question
  218. XML formatting in Mozilla Firefox
  219. XPathNavigator
  220. <dataroot xmlns=''> was not expected...
  221. Traverse XSL stylesheet
  222. Parse CDATA in XML Document
  223. Sequence with schema designer
  224. dontnetnewsgroups
  225. converting Access data to XML
  226. How to build Dynamic Xpath expressions?
  227. XSD Validation error: "The element 'x...' cannot contain text"
  228. XmlNode.SelectNodes, order of nodes
  229. xmlwriter problem - writes one line only
  230. How to Revert VS 2005 DataSet.GetXML() DateTime Format back to VS 2003 Format?
  231. how to ignore DTD and NOT download it when ValidationType=none?
  232. Writing XML file from dataset without DS name
  233. Validating against a DTD
  234. How to determine assigned namespace prefix
  235. Revert VS 2005 DataSet.GetXML() DateTime Format back to VS 2003 Format?
  236. XSLT Help !
  237. "The underlying connection was closed" Error
  238. XslCompiledTransform Issues
  239. Returning Recordset from VB6 object to .Net
  240. Controlling size sent in MSXML2.ServerXMLHTTP.send
  241. Not receiving errors when validating non-valid document
  242. Read xml from a password protected site
  243. XML loading problem ..
  244. VS IDE - problem with XML/Show XSLT output
  245. reading handwritten XML using XmlSerializer
  246. Edit XXML in DatagridView
  247. Validating in-memory XML against in-memory DTD?
  248. Use of count() function with XPath
  249. XML ContentType
  250. Easy question?
  251. How to insert a CDATA section using XPathNavigator ?
  252. Exceptions XML Serialization
  253. Using XML DTD thru C#
  254. C# windows service freezes on System.Diagnostics.Process.Start(info)
  255. Error selecting nodes
  256. xsd enumeration and pattern
  257. System.ArgumentException when calling Send method of ServerXMLHTTP
  258. Sample code demonstrating how to load an XSD-validated XML file into a C# object
  259. Cannot resolve the schemaLocation attribute C#
  260. serialize an XML file
  261. How to save xml file to SQL2000? with c#
  262. Tips and Tricks XML
  263. XML document and XML schema
  264. Convert Question (From XML to XML) using XSLT?
  265. XML Request & Response & ASP.NET 2.0
  266. Opening the related file from a treeview
  267. VS2005 XML Template?
  268. Stylus Editor
  269. Code Generator that writes code to generate an XML doc structure?
  270. Index was outside the bounds of the array
  271. Using XMLTextWriter (or related tool) to write to a string?
  272. No rows in dataset when reading in xml?
  273. Implementation of context using xpath for treeview (c#)
  274. xpath syntax
  275. System.InvalidOperationException when trying to Serialize struct
  276. How do I load the XML got by HttpWebResponse read into a StreamRea
  277. Is it possible to use regular expressions inside of an xpath statement executed by System.Xml.XmlDocument.SelectSingleNode() ?
  278. How to get first grandparent attribute not nodeset?
  279. "this is an unexpected token" error
  280. Working with multiple namespaces
  281. problem processing SOAP response
  282. Almost there - Just need some type of "equals" statement
  283. Creating DTD using DOM
  284. XPath XmlNodeList documentation - apparent contradition
  285. How to edit a value of an element in an XML document ?
  286. retrieving the XmlEnumAttribute and the enum-values (2)
  287. Insert XML string into XML File: Part 2
  288. DataSet nested relations
  289. Insert XML string into Document
  290. Transfering XLM files between computers....
  291. How to use form unload event as VB?
  292. XmlSerializer and unknown types
  293. Convert XML Schema to Class using XSD
  294. how to get root element attribute of xml file with c#?
  295. Force XMLSerializer to use class namespaces
  296. Format the file
  297. WS Proxy generator stripping out XSD annotation and enumerations
  298. How can I read an xml file to populate a combobox?
  299. XmlReader, asp.net 2, and xmlexception help needed
  300. Determine schemas used by document
  301. Get Element Value
  302. XML From Stored Proc
  303. Losing space character value when writing attribute
  304. XSL-Debugger Sample removed from the MSDN
  305. XSL - The variable or parameter '...' is either not defined or it is out of scope.
  306. How to rename an element?
  307. how to pass parameters to xsl from my aspx file
  308. base64 encoding
  309. DTD options
  310. XslCompiledTransform not outputting to XmlDocument
  311. XML Listener
  312. Deserialization of Null Elements
  313. Extract XML using Dotnet
  314. XML ASP.NET 2.o Issue
  315. Subject: retrieving the XmlEnumAttribute values for an Enum
  316. Removing the xmlns attribute from the DOM
  317. Use XSLT to add header text to CSV
  318. Convert XML Encoding
  319. Editing XML data relation line
  320. What could cause XML files to not be completely written?
  321. DataSet.ReadXmlSchema problem
  322. clone xml node for an other document
  323. Validate XML Against DTD with PUBLIC identifier.
  324. XmlSerializer would not serialize properties in the class derived from List<T>
  325. Get valid values for an element from its schema
  326. XML: pros and cons ?
  327. bug in XPathNavigator?
  328. looping Datarows with XMLTEXTWRITER
  329. Importing XML in SQL Server 2005 in .Net 2.0
  330. Serialization to XmlTextReader results in null
  331. XmlTextWriter vs XPathNavigator vs XmlDocument
  332. xPath Partial String Search Expression
  333. Parsing XML file
  334. overwrite a serialized object
  335. How to remove xmlns attribute from XML document (.net)
  336. Post XML with HttpWebRequest
  337. Number format problem in web method
  338. Deserialize XML file
  339. how to test if attribute in sibling nodes have same value
  340. Sample code for how to load an XMLDocument with an XML file while simultaneously validating it against an XSD, AND how to read and search that same validated XML file.
  341. Concatenate xml files
  342. rss feed : escaped invalid xml chars display incorrectly in browser
  343. Response.Write() rss xml
  344. xsd.exe and oldSyntax
  345. Sql Code generation tools
  346. How to remove the extra \ in the ReadOutXML
  347. VS2005 WSE 2.0 WSE040
  348. understanding use of xsi:type
  349. Help! Something adds 1 hour to my datetimes! :-S
  350. read from a text document
  351. Add expected elements to xml
  352. Validate parameter based on a XSD
  353. Xslt question: how to transform children of a node into siblings?
  354. Inserting Nodes at specific location in XML
  355. XmlTextReader and <node> </node>
  356. xmlSchemaSet compile and xs:import error
  357. XMLHttpRequest in .NET
  358. Is it possible to convert any given XML into Class?
  359. XML Serialization of ArrayList causes extra nodes
  360. Mapping a big xml-file to relational database
  361. "Illegal characters in path" with XmlReader of .Net 1.1
  362. Deserializing an XML (soap) file on a pocket pc into a hashtable
  363. DataSet changes schema of XML file
  364. Question about output XML stream containing several XML instance documents
  365. CreateElement and xmlns empty attribute
  366. choice Element and GetXML method of DataSet
  367. xmlhttprequest
  368. xsd : heritage de deux types complexes
  369. XML Writer Hex "00" or "."
  370. proxy authentication
  371. xsd enumeration
  372. Resource Leak from XslCompiledTransform
  373. XPath get the max value
  374. XMLHTTP in .NET
  375. XmlSerializer produces different results in debug and release buil
  376. Xml signature verification for X509Certificate
  377. New profiler tool for .NET professionals
  378. decide at runtime whether to serialize a member?
  379. unique or distinct count from xml
  380. how do I Serialize data containing & in it
  381. Multi Site/Web Serverhosted XML Report loader
  382. XSD Restrictions help please
  383. Update list of elements
  384. XML Serializer
  385. XSLT: Creating anchors from outer XML files
  386. Reading WSDL for Remoting (MetaData.ConvertSchemaStreamToCodeSourceStream)
  387. XML deserialization to Dataset and custom object
  388. "xsi:type" from Dataset.GetXML
  389. Add XMLNodeList to new XMLDocument
  390. How to create element in namespace
  391. XmlElement Move up & Down
  392. EnableVisualStyles.manifest loadxml transformNode
  393. Problem getting node
  394. XSD.EXE and DebuggerStepThroughAttribute
  395. How to create DB schema from XML schema
  396. "Data type not defined" Error when Loading Dataset: Please HELP!
  397. Where to store schemas and stylesheets?
  398. replace invalid xml characters
  399. get rid of blank namespaces
  400. RSS <channel><link> element
  401. reading and verifying digital certificate
  402. "the uri scheme is not valid" error when working with XslTransformload method
  403. is there any limit to how long of a string SqlDataReader.GetString() can return?
  404. performance difference when using XmlDocument or XmlElement.
  405. wsdl design for importing multiple schemas
  406. xml file data source
  407. Error Http 413: entity too large calling web service on Win2003 Sr
  408. Compare 2 xml files and add missing entries
  409. Storage methods
  410. XML and & character as data
  411. retrieving sql:datatype in xsd
  412. XmlDocument: "connection was closed" exception reading local file???
  413. Replace all instances of an element
  414. XmlSerializer and blank namespace
  415. RSS feed displays in IE, not in Firefox
  416. XmlSerializer and DefaultValue?
  417. Using XMLDocument to load chinese characters
  418. problem with element data type
  419. Xml Schema for Business Objects.
  420. ASP.NET 2.0 Tree Control and Navigation Controls - General Question
  421. NewDataSet root element annoyance
  422. WordML / .NET Solution
  423. System.InvalidCastException: Unable to cast object of type 'System.Xml.XmlDocument' to type 'System.String'
  424. what permissions does a windows service need to execute another process? System.Diagnostics.Process process = System.Diagnostics.Process.Start(info); just local administrator? any specific permitions?
  425. How to auto-serialize null Property as blank Attribute?
  426. Xml Serialization/Generics
  427. System.Diagnostics.Process.Start fails on windows server 2003
  428. installation of msxml.
  429. How do Datasets manage to get deserialized as DataSets instead of a wsdl.exe-created proxy class?
  430. Programming without XPathNavigator.SelectSingleNode (framework 1.1)
  431. Strange behaviour
  432. Altsoft Xml2PDF 3.0 Released
  433. retrieving sql:datatype in xsd
  434. XmlIgnoreAttribute() ignoring other attributes then intended
  435. XML deserialization (error)
  436. default namespace / Xmlvalidatingreader
  437. XmlValidatingReader / Default Namespace
  438. HELP ME
  439. Wanting to not add a blank element to the XML
  440. Filter Treeview using XmlDatasource.xpath
  441. Creating HTML from an XML and XSLT
  442. bind menu control with an xml dataset
  443. SelectNodes return all nodes when namespace is defined
  444. XMLDocument serilization date format
  445. Displaying HTML/XHTML from source XML file
  446. Create a sample XML data for XML Schema
  447. the right newsgroup?
  448. Unable to validate data
  449. Unexpected WSE 2.0 errors in Event Log
  450. Problem restoring Exchange 2000
  451. Create a single xml node
  452. XSLT for an xml with namespace
  453. Trouble validating cXML documents with cXML.dtd using XmlValidatingReader
  454. Need Help on Passing XML data to a webservice
  455. XTech 2006 Updates -Keynote Update - Barcamp Amsterdam II -- More
  456. Calling a XML service by vb5.0
  457. custom XmlUrlResolver
  458. rss xml
  459. Serialization of an inherited List<T>
  460. XslTransform memory overload
  461. LOOK AT- x-PUBS LONDON- XML.....
  462. XMLTextWriter and SOAP
  463. Traversing XSD
  464. Howto select encoding ISO-8859-1
  465. XmlNode adds NamespaceURI
  466. Reload layer(div)
  467. xmlTextWriter
  468. XML validate by XSD schema with C#
  469. Illegal Immigration, the Non-Issue of the Week........................
  470. how to find nodes at xml file without complete load the xml file
  471. Implementing XPathNavigator on my class
  472. XSD schema does not validate
  473. GetXml() does return all fields.
  474. persisent timeout problem consuming webservice
  475. How can I validate an XML document with C#?
  476. Web.config with multiple schemas
  477. Can a XSLT combine several XML files during process?
  478. Attributes failed to serialise correctly
  479. 2.0 : fastest read-only forward-only loading method
  480. WSDL complex type generation.
  481. Serializing array of objects of different types
  482. Xsd.exe
  483. XmlSchemaValidator and XmlSerializer.Deserialize()
  484. Loosing parameters via xml control
  485. Using XmlDocument.Save removes previous formatting of the file
  486. Where to write XQuery statements?
  487. Import custom namespace in XSLT
  488. It is a permission issue! And I've got it sorted
  489. Invoke Web Service using a Client Application
  490. Querying in an XML file
  491. Element order on serialization
  492. Testing for non-existing namespace attribute?
  493. "Show XSLT Output" in VS2005 with extended functions
  494. With an XmlNode from a NodeList Can you tell where you are in the original XmlDocument
  495. Setting row color to be based on content in cells in rows in XML
  496. SGEN on the Server
  497. Implementing xsl:message with .Net 1.1
  498. wat is the best way to pass xml into Stored Procedure
  499. Regular Expression Help
  500. Problem with document()
  501. new line replacement in xsl:attribute value with fx2.0
  502. keyref(?) in xsd
  503. Using Custom XmlSerializers
  504. serialization in compact frame not listing some elements
  505. Array Serialization Help
  506. Recommendations for Xml Editor Component that can be hosted in WinForm
  507. XSD One Multiple element question
  508. XML Inheritance
  509. Beginner needs help
  510. for some reason when i deploy my C# application on windows 2003 occasionaly rdr[0].ToString() hangs where rdr is a System.Data.SqlClient.SqlDataReader. Is there a fix for this? is my visual studio.net out dated?
  511. How to add parent node in Vb.NET
  512. Get Xml schema from user defined type at runtime?
  513. XML Deserialization (IXmlSerializable implementation)
  514. Ajax Developers' Day added to XTech 2006 agenda
  515. XML to Database mapping
  516. Creating, saving pages showing xml docs in various sort orders automatically
  517. XML Schema with unnkown Element names
  518. WSE 3.0 X.509 General Question
  519. Converting access tables to XML for use in .NET web app
  520. XmlArrayItem not allowed on Root Elements
  521. Deserialization Error
  522. Ink
  523. Ink
  524. Upload XML file to website cart, Security Issues?
  525. implementing an Online Help
  526. XmlBookmarkReader bug using ReadSubtree
  527. creating an instance of a custom control in xslt?
  528. NULL Value in XML Schema
  529. sql server data to ms word using xml
  530. Read XML document from Web Service
  531. SQLCE db to xml matching Schema
  532. blank lines screwing up XMLDocument object
  533. Word document creation in XML
  534. Dataset diffgram doesn't set xsi:nil for nullable elements
  535. Read attributes of elements from xml schema.
  536. Problem deserializing XML data with xsd.exe
  537. XML Schema to describe specifc case
  538. Problem with reading XML
  539. How to access a network file path \\foo\bar.txt from an .aspx and from a custom IHttpHandler?
  540. Strange "Obsolete" message with Transform method
  541. XPath Expression to retrieve attribute value without case sensitivity
  542. WebDAV/XML Question
  543. UPS Online Tools
  544. Re constructing XML file
  545. Visual Studio 2005 and XML Data view
  546. XmlSchemaException in App.config using UIP Application Block
  547. Extend the XML Schema via C# objects
  548. WSE 3.0
  549. XmlDocument.Save() does not close the file properly?
  550. xPath query