Tài liệu Using a Transaction with a DataAdapter pptx
Tài liệu Using a Transaction with a DataAdapter pptx
... Team LiB ] Recipe 6.5 Using a Transaction with a DataAdapter Problem You need to use a transaction when updating a data source using a DataAdapter. Solution Associate a Transaction with ... the appropriate Command object from the DataAdapter. The sample code contains three event handlers: Form.Load Sets up the sample by using a DataAdapter to load a DataTable with the Orders table ... use a transaction with a DataAdapter to allow the roll back of updates made by the DataAdapter in the event of an error. If, as in the solution, a CommandBuilder is used to generate the update...
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Tài liệu Performing Batch Updates with a DataAdapter doc
... DataAdapter update of the row. e.Status = UpdateStatus.SkipCurrentRow; } Discussion When a DataAdapter is used to update the data source with changes made to disconnected data in a DataSet ... builds a batch SQL update string, which is executed using the ExecuteScalar( ) method after Update( ) is called. DataAdapter. RowUpdating Is called before each row is updated by the DataAdapter. ... [ Team LiB ] Recipe 9.13 Performing Batch Updates with a DataAdapter Problem When you use a DataAdapter to perform updates, it makes a separate round trip to the server for each row....
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Tài liệu Using Windows Vista on a Corporate Mobile Network docx
... upgrade your APs to support it,your next best bet is, of course, WPA. What dothe Personal and Enterprise designations mean for WPA and WPA2? Personal connections fall back on using a password ... certificate when using PEAP-MS-CHAPv2 authentication and enabling Single Sign On. The network administrator might make the laptop a member of the domain by using a wired connection and configure a new ... the AP is broadcasting beyond a range where you need it tooperate, reduce its signal strength and/or redirect the signal to avoid problems with any casual wardrivers.Use a Honeypot. Some administrators...
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Tài liệu Using Adverb Clauses with Time pptx
... as soon as he has decided). • As soon as I hear from Tom, I will give you a telephone call. 'As soon as' means 'when something happens - immediately afterwards'. 'As ... She ate after I (had) left. 'After' means 'after that moment'. It is important to remember that 'after' takes the present for future events and the past OR past ... 'during that time'. 'While' and 'as' are both usually used with the past continuous because the meaning of 'during that time' which indicates an action in progess.By...
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Tài liệu Using Actionscript to Draw Lines Dynamically pptx
... < Day Day Up > Using Actionscript to Draw Lines Dynamically Using ActionScript, you can dynamically draw lines in a movie as it plays a capability that comes with a number of drawing ... drawing • Specify the line style for a timeline • Fill a shape with a color • Fill a shape with a gradient • Curve a line between two points • Clear a timeline of drawn lines and gradients ... thickness, color, and alpha. Here's the syntax: path.lineStyle(thickness, color, alpha) thickness must be a value between 0 and 255 (with a thickness of 0 representing a hairline). color...
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Tài liệu Using the Actions Panel/ActionScript Editor pptx
... for an action that has definable parameters, such as the getURL() action. The currently definable parameter will appear in bold text within the ToolTip. As you enter various parameter data (separated ... elements with scripts attached to them appear in the Script Navigator. The Script pane toolbar appears above the Script pane and provides a series of buttons and commands, enabling you to add to ... You can manually display code hints at any time by placing the insertion point (cursor) at a location where code hints normally appear automatically (such as just after the opening parenthesis...
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Tài liệu Oracle SQL Jumpstart with Examples- P6 pptx
... applica-tions written in languages such as Java. Object applications and relationaldatabases require a complex mapping process between the two differentobject and relational approaches. The reality ... using an analytic clause.These structures are used most frequently in data warehousing toanalyze historical trends in data. For example, the statistical STD-DEV function can be used as an analytic ... ARTIST, GUE-STAPPEARANCE, and SONG tables.SELECT A. NAME||DECODE (S.TITLE, NULL,' is an Artist.',' made a guest appearance on '||S.TITLE||'.') as "What they did"FROM...
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Tài liệu Create dynamic sites with PHP & MySQL pptx
... "root","");mysql_select_db("learndb",$db);$sql = "UPDATE personnel SET firstname='$first',lastname='$last',nick='$nickname',email='$email',salary='$salary' ... useful tasks:* User databaseYou could implement a user database. You can add a login feature to this.* NewsYou could code a section that always displays the latest news or maybe a "What'snew" ... "root","");mysql_select_db("learndb",$db);$sql = "INSERT INTO personnel (firstname, lastname, nick, email, salary)VALUES ('$first','$last','$nickname','$email','$salary')";$result...
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Tài liệu Automating Manufacturing Systems with PLCs P2 pptx
... triac outputs are called switched outputs.- Dry contacts - a separate relay is dedicated to each output. This allows mixed voltages (AC or DC and voltage levels up to the maximum), as well as ... shoebox) that has limited expansion capabilities. Lower cost, and compactness make these ideal for small applications.Micro - These units can be as small as a deck of cards. They tend to have fixed ... more current than any PLC can handle, but a relay would be relatively easy to purchase and install for that load. All of the input switches are connected to the same sup-ply and to the inputs.3.5...
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