add and delete data

Tài liệu Add and Delete Rows in a Dataset with ADO.NET pdf

... OleDb.OleDbCommandBuilder(modaCustIndiv) ' Have the command builder create a Delete SQL command modaCustIndiv.DeleteCommand = ocbCustIndiv.GetDeleteCommand ' Perform the specified SQL command; then close the connection ... ocbCustIndiv.GetInsertCommand 82 Else 83 ' Have the command builder create an update SQL command 84 modaCustIndiv.UpdateCommand = ocbCustIndiv.GetUpdateCommand 85 End If 86 87 ' Perform the specified SQL command; ... ocbCustIndiv As OleDb.OleDbCommandBuilder Try ' Delete the record from the datarow object mdrCustIndiv .Delete( ) ' Instantiate the command builder ocbCustIndiv = New OleDb.OleDbCommandBuilder(modaCustIndiv)...

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Tài liệu Add, Edit, and Delete Data Using the DataGrid Control doc

Danh mục: Cơ sở dữ liệu

... are currently in the DataTable object DataTable Creates a new DataRow object NewRow DataTable.Rows Add Adds the DataRow object to the DataTable object DataTable BeginLoadData Turns off the schema ... OnUpdateCommand="dgRegion_UpdateCommand" OnCancelCommand="dgRegion_CancelCommand" OnEditCommand="dgRegion_EditCommand" OnDeleteCommand="dgRegion_DeleteCommand" >

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Tài liệu Add and Delete Records Using Bound Controls ppt

Danh mục: Cơ sở dữ liệu

... mbAddNew = False End Sub Now it is time to add the delete functionality To this, add the following code to the Click event of the new button called btnDelete The first line of the code you added ... used to call the DELETE SQL statement command against the dataset, deleting the actual rows in the data set The AcceptChanges method is called to send the changes to the dataset, a delete in this ... Adding a New Record to the dsCustomerIndividual Dataset and Toggling Text Boxes Private Sub btnNew_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles btnNew.Click mbAddNew...

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Chapter 7 Create, Add, Delete, and Edit Data in a Disconnected Environment

Danh mục: Cao đẳng - Đại học

... Command … commandtype, commandext SqlDataAdapter1.SelectCommand=cmd Lesson 3: Creating DataAdapter Objects DataAdapter Commands SelectCommand InserCommand UpdateCommand DeleteCommand Build commands ... DataTable DataRow DataColumn Populating DataSet-Manual Construct your own DataSet (schema) 1 Create Dataset Add DataTable(s) Add DataColumn(s) to DataTable Define datatable schema Fill Data into DataTable(s) ... SqlCommand("Valid SQL Delete statement", NorthwindConnection) SqlDataAdapter1.InsertCommand = InsertCommand SqlDataAdapter1.UpdateCommand = UpdateCommand SqlDataAdapter1.DeleteCommand = DeleteCommand...

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Using SQL queries to insert update, delete, and view data

Danh mục: Kỹ thuật lập trình

... run a script to create database tables automatically • Learn how to insert data into database tables • Learn how to create database transactions and commit data to the database • Create search ... Understand how to update and delete database records, and how to truncate tables • Learn how to create and use sequences to generate surrogate key values automatically • Learn how to grant and revoke ... Summary • • • • • • Use INSERT commands to add data NUMBER, DATE and INTERVAL data types can be converted to and from character strings using format models Database changes are made within a...

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Creating and Management Data Base

Danh mục: Cơ sở dữ liệu

... Cú pháp để chỉnh sửa sở liệu: ALTER DATABASE database_name { | | | MODIFY NAME = new_database_name | COLLATE collation_name ... ] [;] RDBMS and Data Management/ Session 7/15 of 25 Nhóm tập tin ghi vết giao dịch  Thêm nhóm tập tin vào CSDL có: Cú pháp ALTER DATABASE database_name { | ... pháp máy chủ standby RDBMS and Data Management/ Session 7/18 of 25 Nhóm tập tin ghi vết giao dịch  Thêm tập tin ghi vết vào sở liệu Cú pháp: ALTER DATABASE database_name { } [;] ::=...

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Saving and Restoring Data

Danh mục: Kỹ thuật lập trình

... parent-child data Create a DataSet instance Add the relevant DataTable objects Add a DataRelation instance that links the tables Set the DataRelation.Nested property to True Call DataSet.WriteXml ... for XML data 118 Microsoft ADO.NET Step by Step Chapter Quick Reference To Do This Export a DataSet to a file as XML Create a DataSet instance Add all relevant DataTable, DataRelation, and content ... XML for the data content of an existing DataSet instance, call its WriteXml method, passing an output file name C# DataSet infoSet = new DataSet(); // - Add tables, relations, and data, then...

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Designing and Implementing Databases with Microsoft SQL Server 2000 Enterprise Edition

Danh mục: Quản trị mạng

... for this database and then add the size of the model database All new databases are based on the model database The model database has an initial size of MB A quick estimate of the user data of ... support inserts, updates and deletes that reference data in the tables A trigger can be deleted when it is no longer needed When a trigger is deleted, the table and the data upon which it is based ... that uses SQL_DMO to extract the data from the database and transform the data into standard electronic data interchange (EDI) files Answer: A Explanation: The data will be published at the company’s...

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Tài liệu Managing and tabulating data in Excel docx

Danh mục: Tin học văn phòng

... 12.7 Icons relevant to External Data 195 CHAPTER 13 13.1 Data from the Internet 195 READING ASCII TEXT DATA 198 Understanding ASCII Text data 199 Why is data stored and distributed in this format? ... “1995,” “2000” and “2010”) 2.2.A NEW DATA You can enter the data for a new case/row by clicking on “New” and typing in the data for the first series, pressing the “TAB and then entering the data for ... Two Roles Of Data/ Form 38 CHAPTER 3.1 REDUCING ERRORS IN DATA ENTRY— VALIDATION AND AUTOCORRECT 40 Validating Data During Data- Entry 40 3.1.a 3.1.b 3.1.c 3.1.d Validation for numeric data 42 Message...

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Tài liệu Backups and Hidden Data doc

Danh mục: An ninh - Bảo mật

... my C:\ drive and typed in backup and sure enough, my Windows 95 box had a backup utility and it worked We were able to make a “backup” of Perl and write it to a couple floppies and restore it ... understand the threats and have a chance at finding them Let’s learn a bit more about how data can be hidden on a computer system It makes sense for attackers or criminals to hide files and data ... with Windows and Unix OS • Viruses: File Infector and Boot Record Infector, Macro • Tools like CHKDSK and MEM may help locate malicious code • Files in DOS and Unix can be hidden and found using...

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Tài liệu Module 10: Backing Up and Restoring Data pdf

Danh mục: Hệ điều hành

... for backing up and restoring data Module 10: Backing Up and Restoring Data Introduction to Backing Up and Restoring Data Slide Objective Backup To introduce backing up and restoring data Lead-in ... topics and objectives ! ! Backing Up Data ! Restoring Data ! In this module, you will learn how to back up and restore data Preparing to Back Up Data ! Lead-in Introduction to Backing Up and Restoring ... lost and corrupt data A user must have the appropriate user right or permission to back up and restore data Permissions and User Rights Are Required to Back Up and Restore Restore Restore Data...

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Tài liệu Module 4: Grouping and Summarizing Data doc

Danh mục: Quản trị mạng

... the skills to group and summarize data by using aggregate functions These skills include using the GROUP BY and HAVING clauses to summarize and group data and using the ROLLUP and CUBE operators ... the skills to group and summarize data by using aggregate functions These skills include using the GROUP BY and HAVING clauses to summarize and group data and using the ROLLUP and CUBE operators ... summarize data by groups ! Use the ROLLUP and CUBE operators and GROUPING function to generate summary data ! Use the COMPUTE and COMPUTE BY clauses to generate control-break reports, grand totals, and...

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Tài liệu Java and XML Data Binding Brett McLaughlin Publisher ppt

Danh mục: Kỹ thuật lập trình

... between data- driven and business-driven APIs and explains when one model is preferable over the other It then explains how constraint modeling fits into the data binding picture and how data binding ... open source data binding API, and this chapter details its ins and outs You'll see that Quick offers ideas and processes that are entirely different from most data binding frameworks and you'll ... Command lines and options that should be typed verbatim Names and keywords in Java programs, including method names, variable names, and class names XML element names and tags, attribute names, and...

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Tài liệu Analytical Methods: EViews and Panel Data ppt

Danh mục: Tin học văn phòng

... refer to variables by the first part name and the question mark Thus, if we type a command using GDP? EViews uses all three GDP series for the USA, Canada, and Mexico Notice the button PoolGenr PoolGenr ... coefficients and intercepts Even though you may fail to reject the hypotheses that represent restrictions that you impose, the hypotheses may not be perfectly true, and that may affect the estimators and ... Hypothesis Testing In panel data models (as in single-equation multiple-regression models) we are interested in testing two types of hypotheses: hypotheses about the variances and covariances of the...

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Tài liệu Backups and Hidden Data ppt

Danh mục: An ninh - Bảo mật

... my C:\ drive and typed in backup and sure enough, my Windows 95 box had a backup utility and it worked We were able to make a “backup” of Perl and write it to a couple floppies and restore it ... understand the threats and have a chance at finding them Let’s learn a bit more about how data can be hidden on a computer system It makes sense for attackers or criminals to hide files and data ... with Windows and Unix OS • Viruses: File Infector and Boot Record Infector, Macro • Tools like CHKDSK and MEM may help locate malicious code • Files in DOS and Unix can be hidden and found using...

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Tài liệu Consuming and Manipulating Data docx

Danh mục: Chứng chỉ quốc tế

... data from, modify data in, and update data sources The DataSet Class The DataSet is a collection of DataTable objects that represent the underlying data of a data source A DataSet has zero or ... exercise, you will add constraints and work with the data in the DataSet Now, go back to the exercise you started earlier in the chapter We’ll add data to the DataSet and retrieve the data through ... Description DataColumnCollection DataColumn The DataColumn object contains data that describes the data in the column (metadata): the column name, the data type, whether the column can be NULL, and so...

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Tài liệu Adding, Modifying, and Removing DataRowView Objects from a DataView docx

Danh mục: Kỹ thuật lập trình

... is new and is being edited Listing 13.3: ADDMODIFYANDREMOVEDATAROWVIEWS.CS /* AddModifyAndRemoveDataRowViews.cs illustrates how to add, modify, and remove DataRowView objects from a DataView ... System .Data; using System .Data. SqlClient; class AddModifyAndRemoveDataRowViews { public static void DisplayDataRow( DataRow myDataRow, DataTable myDataTable ) { Console.WriteLine("\nIn DisplayDataRow()"); ... SqlDataAdapter mySqlDataAdapter = new SqlDataAdapter(); mySqlDataAdapter.SelectCommand = mySqlCommand; DataSet myDataSet = new DataSet(); mySqlConnection.Open(); mySqlDataAdapter.Fill(myDataSet, "Customers");...

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Tài liệu Connecting to Access and Oracle Databases docx

Danh mục: Kỹ thuật lập trình

... Northwind Access database using an OleDbConnection object and retrieve a row from the Customers table Notice that you use an OleDbCommand and OleDbDataReader object to run a SQL statement and read the ... OleDbConnection(connectionString); // create an OleDbCommand object OleDbCommand myOleDbCommand = myOleDbConnection.CreateCommand(); // set the CommandText property of the OleDbCommand object to // a SQL SELECT statement ... // create an OleDbDataReader object and call the ExecuteReader() // method of the OleDbCommand object to run the SELECT statement OleDbDataReader myOleDbDataReader = myOleDbCommand.ExecuteReader();...

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Tài liệu Filtering and Sorting Data pptx

Danh mục: Kỹ thuật lập trình

... sorts the data in DataTable objects in the DataSet The DataViewManager can simplify working with multiple views within a DataSet, but is not required The DataViewManager object exposes a DataViewSettingCollection ... the Order table and add it to the DataSet da = new SqlDataAdapter("SELECT * FROM Orders", ConfigurationSettings.AppSettings["Sql_ConnectString"]); DataTable orderTable = new DataTable(ORDERS_TABLE); ... dvm.DataViewSettings[ORDERS_TABLE].RowFilter = employeeIdFilter; // Bind the DataViewManager to the grid dataGrid.SetDataBinding(dvm, CUSTOMERS_TABLE); } Discussion The DataView filters and sorts...

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Tài liệu Display, Sort, and Page Data in the DataGrid Control pdf

Danh mục: Cơ sở dữ liệu

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