Tài liệu Manipulating data docx

... minutes Introduction to Oracle: SQL and PL/SQL Using Procedure Builder11Ć52 Manipulating Data 11 Manipulating Data 11Ć53 Practice 11 1. Insert data into the DEPARTMENT and EMPLOYEE tables. Note: If you did ... automatically enforces all datatypes, data ranges, and data integrity constraints. Any column that is not listed explicitly obtains a null value in the new row. Manipulat...

Ngày tải lên: 21/12/2013, 06:17

Ngày tải lên: 24/12/2013, 09:16

... match the number of values in the subquery. Manipulating Data 11 Introduction to Oracle: SQL and PL/SQL Using Procedure Builder11Ć20 Manipulating Data 11Ć21 Updating Rows You can modify existing ... Oracle: SQL and PL/SQL Using Procedure Builder11Ć16 Manipulating Data 11Ć17 Adding a New Row to a Table continued Creating a Script to Manipulate Data You can save your command with...

Ngày tải lên: 17/01/2014, 09:20

... 6 Consuming and Manipulating Data CERTIFICATION OBJECTIVES 6.01 Consuming and Manipulating Data 6.02 Accessing and Manipulating Data from a Microsoft SQL Server Database by Creating and ... a DataSet is organized much as data is represented in a relational database. The DataSet uses the DataTable collection to represent the tables—a DataTable represents one table of in-memory d...

Ngày tải lên: 21/12/2013, 19:15

Ngày tải lên: 10/12/2013, 19:15

... ] Recipe 3.6 Combining Data in Tables from Heterogeneous Data Sources Problem You want to create a report that is based on data from tables in more than one data source. Solution Use ... 3-6. File: CombiningDataFromMultipleDatabasesForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System .Data; using System .Data. SqlClient;...

Ngày tải lên: 14/12/2013, 18:16

... = new SqlDataAdapter(sqlText, ConfigurationSettings.AppSettings["Sql_ConnectString"]); // Fill the Customer table in the DataSet with customer data. DataSet ds = new DataSet( ... the message queue is closed. A DataSet is created and a DataAdapter is used to return the record for the requested CustomerID into a Customer DataTable in the DataSet. A result queue is created .....

Ngày tải lên: 14/12/2013, 18:16

... developer who knows better than that. You heard that the DataReader object is a fast way to get data. How do you retrieve data using the DataReader object to perform this task? Technique For ... to create the DataReader object. You will then use the Read method off of the DataReader object to perform two tasks. The first task is that when used in a loop, you can test for datareader.R...

Ngày tải lên: 14/12/2013, 20:16

... Builder10Ć16 Oracle Data Dictionary 10Ć17 Summary The data dictionary is a set of tables that the user can query through views. The data dictionary holds all the data about the database. Write a ... read-only reference to the database. At the end of this lesson, you should be able to D Describe the data dictionary views a user may access. D Query data from the data dictionary. I...

Ngày tải lên: 21/12/2013, 06:17

... Displaying Data from Multiple Tables 4 Introduction to Oracle: SQL and PL/SQL Using Procedure Builder4Ć10 Server ÉÉÉÉ Displaying Data from Multiple Tables 4Ć11 Simple ... data structures you are using. Syntax SELECT table.column, table.column FROM table1, table2 WHERE table1.column1 = table2.column2; where: table.column denotes a table and column from which data ... Using Procedure B...

Ngày tải lên: 21/12/2013, 06:17