accessing the binary data

... from the user and then uses it as the primary key lookup value in the application’s sample DataTable Most of the code exists to ensure that the user provides a valid ID 60 Chapter 4  Accessing the ... expressionField.Text); This code adds the expression columns to the sample table, passing the column name, the data type from the System namespace, and the field expression Run the program On the Add Expression ... expressionField.Text) This code adds the expression columns to the sample table, passing the column name, the data type from the System namespace, and the field expression Run the program On the Add Expression...

Ngày tải lên: 03/10/2013, 00:20

... is usually the primary key of the parent entity, because as the primary key uniquely defines the parent, the child must in turn be associated with a unique instance of the parent The foreign ... normalizing a database, you accomplish the following Data consistency maintained " Lead-in Fewer null values The benefits of a normalized database are as follows: " Data consistency maintained Data is ... Designing Data Services and Data Models Module 3: Using a Conceptual Design for Data Requirements Module 4: Deriving a Logical Data Design Module 5: Normalizing the Logical Data Design In the next...

Ngày tải lên: 16/10/2013, 13:15

... click Start The compaction utility will make three passes through the directory data The first will verify integrity of your ASN database, the second will compact the ASN database, and the third ... Steps Clear the genlogs file and then stop the MMS Server a Open Services from the Administrative Tools menu b In the Services window, right-click MMS Server, and then click Restart The MMS Server ... Maintaining the MMS Database Exercise Verifying Directory Integrity With the MMS Compaction Utility In this exercise, you will run the MMS compaction utility to compress the database and ensure the integrity...

Ngày tải lên: 19/10/2013, 02:15

... standby databases • The operating system and platform architecture for the primary and standby databases must be the same • The operating system releases for the primary and standby databases ... this lesson, you should be able to the following: • Describe the Data Guard architecture • Explain the operational requirements of Data Guard • Describe how Data Guard processes, transports, and ... different • If all databases are on the same system, verify that the OS allows you to mount more than one database with the same name 2-3 Copyright © 2006, Oracle All rights reserved Data Guard Operational...

Ngày tải lên: 26/10/2013, 20:15

... CRM The first step in the operation of the CRM is the client component’s creation of the CRM Worker The client component then begins using the CRM Worker In the case of the XML CRM Worker, the ... satisfy the requirements of the Create Requisition use case In the class, include the necessary methods to obtain the next database ID The class should also cache database IDs from the database ... requests from the business logic layer The transactional DAL then processes the requests by delegating the requests to the data services layer The transactional DAL can return to the business...

Ngày tải lên: 05/11/2013, 12:15

... or motion sensors to Another ready means to improve cooling is removing block- dim the lights when no one is in the data center; lights ages under the raised floor The basic cable management ... aisles hot and the cold more cooling dollars in the data center There is probably an aisles cold Aisles designated for cold air situate servers and other active program for cleaning above the raised ... airflow throughout the data center and reduce energy costs These include the following: • Move air conditioning units closer to heat sources • During cooler months and in the cool of the evening time,...

Ngày tải lên: 10/12/2013, 19:15

... how the layers in the slide work together Oracle Oracle Other Other FoxPro FoxPro Hierarchical Data Hierarchical Data Mail Video Directory Mail Video Directory Text Other Services Text Other ... in the folder appears with a message stating that the item is either not a message or it displays the subject of the message and the sender of the message Module 3: Accessing Exchange 2000 Data ... Stream object Accessing Files After you open a Stream object, you can manipulate the contents of the opened file First, specify the type of data in the file by setting the Type property If the file...

Ngày tải lên: 11/12/2013, 14:15

... key Note The value for the primary key in each row of a table must be unique In the case of the Customers table, the primary key is the CustomerID column The key icon shown to the left of the CustomerID ... can think of the foreign key as a pointer from the Orders table to the Customers table Often, the table containing the foreign key is known as the child table, and the table with the column referenced ... characters binary Fixed-length binary data with a maximum length of 8,000 bytes varbinary Variable-length binary data with a maximum length of 8,000 bytes image Variable-length binary data with...

Ngày tải lên: 14/12/2013, 13:15

... a DataRow and define its schema for the binary types as described previously or retrieve the schema from the data source using the FillSchema( ) method of the DataAdapter Add the row to a DataTable ... update the image A parameter for the image is added to the stored procedure command The ExecuteNonquery( ) method of the Command object is used to update the image in the database The DataAdapter ... differently than other data when reading with a DataReader since the data cannot be contained in a single row The ExecuteReader( ) method of the Command object that is used to create the DataReader...

Ngày tải lên: 14/12/2013, 18:16

... LOB data type Data Type Description Blob Oracle data type containing binary data with a maximum size of GB This data type maps to a Byte array Clob Oracle data type containing character data ... Discussion The GetOracleLob( ) typed accessor method of the OracleDataReader gets the value of the specified column as an OracleLob object representing a Large Object Binary (LOB) data type stored ... conn.Open( ); // Create the DataReader OracleDataReader dr = cmd.ExecuteReader( ); // Iterate over the collection of rows in the DataReader if(dr.Read( )) { // Retrieve the BLOB into a stream...

Ngày tải lên: 14/12/2013, 18:16

... cursor creates a copy of the keys from the dataset on the server As the client requests records from the dataset, the keys are used to get the actual records from the database This is an efficient ... Server™ database To create a new order, a system must know the name of the computer running SQL Server, the name of the database, and the names of the tables in which the orders are stored If the ... changes in the business logic and facades A DAL isolates the rest of the system from changes in the data services Using the DAL, the business logic or facades only pass or request the data they need,...

Ngày tải lên: 21/12/2013, 06:17

... is usually the primary key of the parent entity, because as the primary key uniquely defines the parent, the child must in turn be associated with a unique instance of the parent The foreign ... normalizing a database, you accomplish the following Data consistency maintained " Lead-in Fewer null values The benefits of a normalized database are as follows: " Data consistency maintained Data is ... Designing Data Services and Data Models Module 3: Using a Conceptual Design for Data Requirements Module 4: Deriving a Logical Data Design Module 5: Normalizing the Logical Data Design In the next...

Ngày tải lên: 21/12/2013, 06:18

... ! To prepare for the activity Complete the activity Look at the answers and be able to explain them Activity 5.2: Normalizing Data In this activity, students will normalize the logical design ... Normalize a logical data design to third normal form ! To prepare for the activity Complete the activity Look at the answers and be able to explain them Module Strategy Use the following strategy ... through a new data problem in addition to the ones supplied in the text Your goal is that students be able to almost “sense” whether data is normalized when it is presented to them ...

Ngày tải lên: 17/01/2014, 09:20

... findings to the class Table Field Data type 31 32 Activity 6.1: Translating the Logical Data Design Table Field Data type Table Field Data type Table Field Data type Activity 6.1: Translating the Logical ... Translating the Logical Data Design Exercise 1: Deriving a Physical Data Design from a Logical Data Design In this exercise, you will use the logical data design presented below and derive a physical data ... Logical Data Design Table Field Data type Table Field Data type THIS PAGE INTENTIONALLY LEFT BLANK Table Field Data type 33 34 Activity 6.1: Translating the Logical Data Design Table Field Data...

Ngày tải lên: 17/01/2014, 09:20

... CRM The first step in the operation of the CRM is the client component’s creation of the CRM Worker The client component then begins using the CRM Worker In the case of the XML CRM Worker, the ... satisfy the requirements of the Create Requisition use case In the class, include the necessary methods to obtain the next database ID The class should also cache database IDs from the database ... requests from the business logic layer The transactional DAL then processes the requests by delegating the requests to the data services layer The transactional DAL can return to the business...

Ngày tải lên: 17/01/2014, 09:20

... VMs in the data center, refer to Integrating ESX Hosts into the Cisco Data Center Architecture, page 24 VLAN Tagging Historically, the physical access switches in the data center provide the VLAN ... internal networks of VMs local to the ESX host VMnets use the virtual switch to link VMs on the same VLAN The system bus provides the transport and the CPU manages the traffic VMnets are generally ... modification to the default utilization scheme is made Virtual Memory The memory resources of the ESX host are divided among multiple consumers: the kernel, the service console, and the VMs The ESX virtualization...

Ngày tải lên: 24/01/2014, 10:20

... in the network, the routers in the network consume additional CPU resources The routers consume additional resources with both the control plane of IPmc and the data replication function The ... 17 ms The second test, “IP unicast IPmc”, is the same traffic profile with the addition of an IPmc stream to each of the 1000 branches in the topology The number of VoIP calls remained the same, ... Another option is for the customer to advertise a network prefix encompassing the IPsec and p2p GRE headend peer address from both the primary campus and the disaster recovery hot site In the...

Ngày tải lên: 24/01/2014, 10:20

... click Open, click the Restore button, and then click Close Expand the Module 18C database, double-click the Data Sources folder, right-click the FoodMart 2000 data source, and then click Edit Verify ... years worth of data, as well as the variance of the two years—1997 and 1998 In addition, users want to evaluate the all the values based on the year in which the stores opened The tables that ... new data source in Module 18 On the Provider tab of the Data Link Properties dialog box, click the Microsoft OLE DB Provider for ODBC Drivers Click Next On the Connection tab, click the Use data...

Ngày tải lên: 24/01/2014, 19:20

... accessibility of the data and the growing importance of understanding the data has meant that the PDB’s user community has grown from the community of crystallographers that banded together to form the archive ... respectively When the PDB updates the ftp site each week, most pharmaceutical companies download the new data for inclusion in their own in-house databases These structural data are used to aid the discovery ... While the early users of the PDB were mostly crystallographers who used the resource to store their data and to review other structures for comparison with their own, now more than half of the...

Ngày tải lên: 16/02/2014, 11:20

... Using the Python Database API with Red Hat Database Getting Ready to Use the Python Database API with Red Hat Database To use the Python Database API, you need the Python interpreter as well as the ... to the database def initialize (): # Connect to the basketball database Use the dsn as the connection # parameter The Python DB-API details the other valid connection # parameters Notify the ... through the process of connecting to a database, inserting Red Hat Using the Python Database API with Red Hat Database Using the Python Database API with Red Hat Database a row, and then disconnecting:...

Ngày tải lên: 19/02/2014, 12:20