populate sql database from xml

... 6 SQL Injection Attacks 149What Is an SQL Injection Attack? 149 Why Are SQL Injection Attacks So Successful? 154 How to Protect Yourself from an SQL Injection Attack 155 Cleaning Up the Database ... allow any direct access to the SQL Server ports from the Internet If you have to allow direct access from the Internet to the SQL Server’s TCP port, then only do so from the smallest set of network ... most passwords on the database servers that can be accessedfrom the Internet have passwords that can be guessed fairlyeasily, especially if the version of SQL Server is SQL Server 2000 orolder

Ngày tải lên: 30/04/2019, 00:31

... Trang 4Advanced SQL Database Programmers Handbook Donald K Burleson Joe Celko John Paul Cook Peter Gulutzan Trang 6Advanced SQL Database Programmers Handbook By Donald ... Book vii About the Authors ix Foreword x Chapter 1 - SQL as a Second Language 1 Thinking in SQL by Joe Celko 1 Chapter 2 - SQL View Internals 7 SQL Views Transformed by Peter Gulutzan 7 Syntax 7 ... Conclusion 85 Chapter 15 - Preventing SQL Worms 87 Preventing SQL Worms by John Paul Cook 87 Finding SQL Servers Including MSDE 87 Identifying Versions 90 SQL Security Tools 92 Preventing Worms

Ngày tải lên: 10/04/2014, 09:30

... C2, C3 FROM T  Sử dụng LIMIT để hạn chế số lượng bản ghi  SELECT C1, C2, C3 FROM T LIMIT 3, 20  Sử dụng dấu sao ( * ) để liệt kê tất cả các cột  SELECT * FROM T  Sắp xếp  SELECT * FROM T ... liệu DELETE FROM SanPham WHERE MaSP=123; Trang 18TRUY VẤN DỮ LIỆU Liệt kê các cột C1, C2, C3  SELECT C1, C2, C3 FROM T  Đặt bí danh cho cột C2 là NAME  SELECT C1, C2 AS ‘ NAME ’, C3 FROM T  ... SUM(C2) AS ‘Tong’ FROM T  MIN(biểu thức) dùng để lấy giá trị nhỏ nhất  SELECT MIN(C2) AS ‘NhoNhat’ FROM T  MAX(biểu thức) dùng để lấy giá trị lớn nhất  SELECT MAX(C2) AS ‘LonNhat’ FROM T  AVG(biểu

Ngày tải lên: 05/07/2014, 04:20

... Trang 1Advanced SQL Database Programmer Handbook Donald K Burleson Joe Celko John Paul Cook Peter Gulutzan Brought to you by DBAzine.com & BMC Software Inc. Trang 3Advanced SQL Database Programmers ... Book vii About the Authors ix Foreword x Chapter 1 - SQL as a Second Language 1 Thinking in SQL by Joe Celko 1 Chapter 2 - SQL View Internals 7 SQL Views Transformed by Peter Gulutzan 7 Syntax 7 ... Conclusion 91 Chapter 15 - Preventing SQL Worms 93 Preventing SQL Worms by John Paul Cook 93 Finding SQL Servers Including MSDE 93 Identifying Versions 96 SQL Security Tools 98 Preventing Worms

Ngày tải lên: 08/08/2014, 18:21

... column2 FROM Table1, Table2 WHERE Table2.column1 = Table1.column1 SELECT DISTINCT column1 FROM View1 < this is slow SELECT DISTINCT column1 FROM Table2 < this is fast — Source: SQL Performance ... column name with the base expression from the column list Example: SELECT view_column1 FROM View1 WHERE view_column2 = 3 Trang 9Becomes SELECT (column1+1) FROM Table1 WHERE (column2+2) = 3 [3] ... view_column1 FROM Table1 SELECT view_column1 * 5 FROM View1 When evaluating the SELECT, QR ends up with this query if the extra parentheses are omitted: SELECT table1_column + 1 * 5 FROM Table1

Ngày tải lên: 08/08/2014, 18:21

... ALL view: CREATEVIEW View1 AS SELECT a FROM Partition1 UNION ALL SELECT a FROM Partition2 SELECT a FROM View1 UPDATE View1 SET a = 5 DELETE FROM View1 WHERE a = 5 INSERT INTO View1 ... view_column1 FROM Table1 GROUP BY column2 then instead of this: SELECT AVG(view_column1) FROM View1 do this: SELECT AVG(view_column1) FROM (SELECT MAX(column1) AS view_column1 FROM Table1 ... function (e.g.: CREATE VIEW View1 AS SELECT MAX(column1) FROM Table1) then the similar query SELECT MAX(column1) FROM Table1 can just select from the view, even though the SELECT doesn't ask for

Ngày tải lên: 08/08/2014, 18:21

... returned from a division by an empty set Because of the COUNT() functions in my query, no pilots are returned from a division by an empty set In the sixth edition of his book, Introduction to Database ... (nee ANSI X3) Database Standards Committee added these operators, the model in the SQL-92 standard was to pair off the two tables on a row-per-row basis for set operations (note: In SQL-92, we ... lack of a UNION operator UNIONs are supported in 86, SQL-89, and SQL-92, but the other set operations have to be constructed by the programmer in SQL-89 The syntax for the UNION statement is: <query>

Ngày tải lên: 08/08/2014, 18:21

... 'C.' From a logical viewpoint, this redefinition makes no sense at all It is confusing the numeral with the number that the numeral represents Early SQL and Contiguous Storage The early SQLs ... first place? Defining a Three-valued Logic SQL has three sub-languages: DML, DDL, and DCL The Data Control Language (DCL) controls user access to the database and does not use predicates In the ... DELETE FROM statements) The Data Declaration Language (DDL) is where administrators control the schema objects like tables, views, stored procedures and so forth The FALSE and UNKNOWN remove rows from

Ngày tải lên: 08/08/2014, 18:21

... SELECT D1.document_id FROM Documents AS D1 WHERE EXISTS (SELECT * Trang 5 FROM SearchList AS S1 WHERE S1.word = D1.key_word); AND NOT EXISTS (SELECT * FROM ExcludeList AS E1 ... operators that Ted Codd proposed in his papers on relational database theory Here is one way to code this operation in SQL SELECT D1.document_id FROM Documents AS D1, SearchList AS S1 WHERE D1.key_word ... Introduction You are not supposed to put a calculated column in a table in a pure SQL database And as the guardian of pure SQL, I should oppose this practice Too bad the real world is not as nice as

Ngày tải lên: 08/08/2014, 18:21

... Trang 1Graphs in SQL CHAPTER11 Path Finder I got an email asking me how to find paths in a graph using SQL The author of the email had seen my chapter on graphs in SQL for Smarties, and ... path, so we can eliminate some of the paths from the Paths table with this statement DELETE FROM Paths WHERE total_cost > (SELECT MIN(total_cost) FROM Paths); Trang 5Again, if you had all ... than they need to get the job done DELETE FROM Paths WHERE path_length > (SELECT MIN(path_length) FROM Paths); In this case, that last DELETE FROM statement will reduce the table to

Ngày tải lên: 08/08/2014, 18:21

... 7Preventing SQL Worms CHAPTER 15 Preventing SQL Worms Most of the damage caused by SQL worms targeting SQL Servers could easily have been prevented by applying service packs to SQL Servers ... propagation of the worm SQL worms are a far greater threat than many people realize because there are many SQL Servers out of sight and out of mind Since SQL 7, the SQL Server database engine has ... Finding SQL Servers Including MSDE SQL Servers (for the rest of this article, this term includes MSDE) are applications named sqlservr.exe (not sqlserver.exe) There can be multiple copies of sqlservr.exe

Ngày tải lên: 08/08/2014, 18:21

... 623 ■ CHAPTER 28 From Databases to Datatypes 625 Working with Databases 625 Default Databases 625 Creating a Database 626 Connecting to a Database 626 Deleting a Database 626 Modifying ... T E N T S ■ CHAPTER 22 SQLite 535 Introduction to SQLite 535 Installing SQLite 536 Using the SQLite Command-Line Interface 536 PHP’s SQLite Library 537 SQLite Directives 537 ... The Many PostgreSQL Clients 611 What Is psql? 611 psql Options 612 Commonplace psql Tasks 613 Logging Onto and Off the Server 613 psql Commands 613 Storing psql Variables and

Ngày tải lên: 12/08/2014, 14:21

... creating an Executive class that inherits from Employee ■ Note A class that inherits from another class is known as a child class, or a subclass The class from which the child class inherits is ... class that inherits from Executive The following example demonstrates that concept, producing a class titled CEO, which inherits from Executive: Because Executive has inherited from Employee, objects ... Inheriting from a Base Class if ($name == "") echo "Name cannot be blank!"; else $this->name = $name; } #end Employee class # Define an Executive class that inherits from

Ngày tải lên: 12/08/2014, 14:21

... At present there are 12 supported databases, including: dBase, FrontBase, Informix, InterBase, Mini SQL, Microsoft SQL Server, MySQL, Oracle, ODBC, PostgreSQL, SQLite, and Sybase • Mail: Writing ... P E A R 261• XML_Parser: The XML_Parser package offers an easy, object-oriented solution for parsing XML files • XML_RPC: The XML_RPC package is a PHP-based implementation of the XML-RPC protocol ... query API for abstracting communication with the database layer This affords you the convenience of transparently migrating applications from one database to another potentially as easily as modifying

Ngày tải lên: 12/08/2014, 14:21

... datasourcetitle:username:password@hostname/database Therefore, we use the following DSN to log in to a PostgreSQL database: pgsql://corpweb:secret@localhost/corporate If it were a MySQL database and all other things ... purposes of demonstration, we’ll consider how to authenticate against a PostgreSQL database Authenticating Against a PostgreSQL Database Because Auth_HTTP subclasses the Auth package, it inherits all ... satisfied by imple-menting a database-based solution The following section demonstrates just such a solution, using a PostgreSQL database to store authentication pairs Database-based Authentication

Ngày tải lên: 12/08/2014, 14:21

... in RAM The sqlite option takes advantage of the new SQLite extension to manage session information transparently using this lightweight database (see Chapter 22 Trang 11for more about SQLite) The ... session_encode(), readying it for insertion into a PostgreSQL database Trang 19Listing 18-1 Using session_encode() to Ready Data for Storage in a PostgreSQL Database $_SESSION['loggedon'] = date("M d ... be stored in four ways: within flat files (files), within shared memory (mm), using the SQLite database (sqlite), or through user-defined functions (user) Although the default setting, files,

Ngày tải lên: 12/08/2014, 14:21

... alternatives, psql offers a powerful means for managing every aspect of the PostgreSQL server Bundled with the PostgreSQL distribution, psql is akin to MySQL’s mysql client and Oracle’s SQL*Plus tool ... postgresql.conf file PostgreSQL starts by vacuuming any databases that are close to transaction ID wraparound However, if there is no database that meets that criterion, PostgreSQL vacuums the database ... name of the server hosting the PostgreSQL database PGHOSTADDR The IP address of the server hosting the PostgreSQL database PGPORT The post on which the PostgreSQL server is listening for connections

Ngày tải lên: 12/08/2014, 14:21

... Overview What Can SQL do? What Can SQL do?  Execute queries against a database  Retrieve data from a database  Insert records in a database  Updata records in a database  Delete records in a database  Create ... range. Example SELECT * FROM Persons WHERE LastName LIKE ‘[!bsp]%’ Or SELECT * FROM Persons WHERE LastName LIKE ‘[^D-R]%’ MS SQL Server MS SQL Server DATABASE PROGRAMMING DATABASE PROGRAMMING 4.T -SQL Queries ... are retrieved from the database and passed back to the function that initiated the query. Example SELECT EngineerId, EngineerName, HourlyRate FROM Engineers SQL Server Overview SQL Server Overview What...

Ngày tải lên: 28/10/2013, 03:15

... been devised to map XML query languages to relational storage and SQL [4,6,21,26,25]. Relational database systems are therefore well-suited as a platform for data-centric XML processing. Recent ... document-centric XML processing on relational database systems. 3 Flexible XML Retrieval with Query-Specific Statistics Conventional IR statistics for ranked and weighted retrieval come too short for XML retrieval ... the XML Database with Meta-Models. Most complex meta-models in MECASP are obtained by the conversion from the definitions/ schemas of the existing applications/ resource types (e.g. a generic database...

Ngày tải lên: 14/12/2013, 15:16

... 9 doc(’items .xml )//item_tuple[get-year -from- date(end_date)=1999] [get-month -from- date(end_date)=doc(’items .xml )] XQueries: 10 doc(’items .xml )//item_tuple[get-year -from- date(end_date)=1999] [get-month -from- date(end_date)=doc(’items .xml )//item_tuple] XQueries: ... 14 doc(’bids .xml )//bid_tuple[userid=doc(’users .xml )] XQueries: 15 doc(’bids .xml )//bid_tuple[userid =doc(’users .xml )] XQueries: 16 doc(’bids .xml )//bid_tuple[userid =doc(’bids .xml )//userid]/bid XQueries: ... =doc(’bids .xml )//userid] XQueries: 13 doc(’bids .xml )//bid_tuple[userid =doc(’bids .xml )//userid] XQueries: 13 doc(’bids .xml )//itemno XQueries: 14 doc(’bids .xml )//bid_tuple[itemno =doc(’bids .xml )//itemno] XQueries:...

Ngày tải lên: 14/12/2013, 15:16