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QR Code generation in ASP . NET MVC - Stack Overflow
So, on your page (assuming ASPX view engine) use something like this: ... publicstatic MvcHtmlString QRCode (this HtmlHelper htmlHelper, string .... http://www.esponce.com/api/v3/ generate ?content=Meagre+human+needs ...

The data portal, which I discuss in 15, can deal only with Serializable objects. And when CSLA .NET is configured to use custom authentication, it automatically serializes the client principal and identity objects and copies them to the application server on each data portal call. The result is that the application server is able to impersonate the client s identity.

The FLASHBACK_TRANSACTION_QUERY view contains the following columns: START_SCN and START_TIMESTAMP identify when a certain row was created. COMMIT_SCN and COMMIT_TIMESTAMP tell you when a transaction was committed. XID, ROW_ID, and UNDO_CHANGE# identify the transaction, the row, and the undo change number, respectively. OPERATION tells you whether the DML operation was an insert, update, or delete operation.

If you see a value of UNKNOWN under the OPERATION column, it means that there isn t sufficient undo information in your undo tablespace to correctly identify the transaction s exact operation type.

LOGON_USER, TABLE_NAME, and TABLE_OWNER provide the username, table name, and schema name. UNDO_SQL gives you the exact SQL statement required to undo the transaction. Here s an example of the type of data you would find under the UNDO_SQL column: delete from "APPOWNER"."PERSONS" where ROWID = 'AAAP84AAGAAAAA1AAB';

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How To Generate QR Code Using ASP . NET - C# Corner
24 Nov 2018 ... Introduction. This blog will demonstrate how to generate QR code using ASP .NET . Step 1. Create an empty web project in the Visual Studio ...

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ASP . Net MVC: Dynamically generate and display QR Code Image
4 Dec 2017 ... Here Mudassar Ahmed Khan has explained with an example, how to dynamicallygenerate and display QR Code Image in ASP . Net MVC ...

Although CSLA .NET for Silverlight is not the topic of this book, it also has a data portal that serializes objects, and BusinessPrincipalBase is designed to work with CSLA .NET for Silverlight as well.

Oracle recommends that if any of the tables that are part of the Flashback Transaction Query operation contained chained rows, or if you re using clustered tables, you must turn on supplemental logging in your database before using the Flashback Transaction Query. You can turn supplemental logging on at the database level, using the following SQL statement: SQL> ALTER DATABASE ADD SUPPLEMENTAL LOG DATA; The following query will display all transactions, both committed and active, in all the undo segments: SQL> SELECT operation, undo_sql, table_name FROM flashback_transaction_query; The query in Listing 6-3 shows how to determine the operation that will undo a transaction and the specific SQL statement that will undo it. Listing 6-3. Identifying SQL Statements to Undo Data Changes SELECT operation, undo_sql, table_name FROM flashback_transaction_query WHERE start_timestamp >= TO_TIMESTAMP ('2005-02-15 05:00:00', 'YYYY-MM-DD HH:MI:SS') AND commit_timestamp <= TO_TIMESTAMP('2005-02-15 06:30:00', 'YYYY-MM-DD HH:MI:SS') 6* AND table_owner='PASOWNER'; OPERATION UNDO_SQL TABLE_NAME ----------------------------------------------------------------------------INSERT delete from "APPOWNER"."FR_DETAILS" FR_DETAILS where ROWID = 'AAQXXZAC8AAAB+zAAb'; INSERT delete from "APPOWNER"."FR_DETAILS" FR_DETAILS where ROWID = 'AAQXXZAC8AAAB +zAAa'; SQL> The OPERATION column in Listing 6-3 indicates that two inserts were made during the time period specified in the query. The UNDO_SQL column shows the exact SQL statement you must run SQL> 2 3 4 5

If you would like to see some serious use of functions and script tasks, turn to Appendix B for some Tip

to undo the changes this is information the query fetched for you from the undo segments. In this simple example, there are only two delete statements that you ll have to execute if you wish to undo the inserts displayed by your query. However, transactions usually contain several DML statements, in which case you ll have to apply the undo changes in the sequence that the query returns them to correctly recover the data to its original state.