Tài liệu SQL Antipatterns- P8 doc

... indexing database infrastructure, documenting, 271 database validity, testing, 274 DBA scripts, source code control for, 274 debugging against SQL injection, 248–249 debugging dynamic SQL, 262 DECIMAL data ... media, passwords stored on, 224 bandwidth of SQL queries, 220 Berkeley DB database, 81 best practices, 266–277 establishing culture of quality, 269–277 documenting code, 269 source...

Ngày tải lên: 26/01/2014, 08:20

... limited version of the SQL language. He said, “I don’t need to support the full language—that would be too much work. I need only one SQL statement: SELECT.” I hadn’t been taught SQL in school. Databases ... learning how to use SQL effectively. Since 1992, I’ve worked with SQL a lot. I’ve used it when developing applications, I’ve provided technical support and developed training an...

Ngày tải lên: 21/01/2014, 08:20

... problem. Use a set of training documents. The implementor of a Huffman codec (compres- sor/decompressor) selects a set of documents that are judged typical or average. The documents are analyzed once, ... printed captions (French) 7 Dense document (Kanji) 8 Handwritten memo with very large white-on-black letters (English) Table 2.21: The Eight CCITT Training Documents. Please purchase PDF Spli...

Ngày tải lên: 26/01/2014, 08:20

... Mohr, W. Additional CC Propagation Models for Application in the Simulated Testbeds. ATDMA Internal Document: R2084/ESG/CC3/IN/I/0351al. 15. Gollreiter, R. Channel Models Issue 2. R2084/ESG/CC3/DS/P/0291b1.

Ngày tải lên: 24/12/2013, 01:18

... facilities, somewhat in contrast to the usual Industry model. The students completed design, prototypes, documentation and demonstration, but did not fully integrate their work with the middleware infra - structure. Virtually

Ngày tải lên: 24/12/2013, 17:15

... cơ sở các t liệu trình diễn, ta có thể tạo ra các quan sát tháo lắp và định vị các thành phần lắp ráp. Ta cũng có thể tạo ra hoạt hình của các quan sát quá trình tháo lắp. - T liệu trình diễn ... Ta có thể tạo đủ số lợng quan sát cần thiết. T liệu trình diễn đợc liên kết tới lắp ráp, vì vậy ta có thể tạo tất cả các quan sát yêu cầu trong t liệu. - Ta có thể biểu diển các cụm lắp...

Ngày tải lên: 25/12/2013, 09:15

... partitioning support in MySQL version 5.1, you can specify partitions as an optional part of a CREATE TABLE statement. Download Metadata-Tribbles/soln/horiz-partition .sql CREATE TABLE Bugs ( bug_id ... data type for real numbers, c alled float or double. SQL supports a similar data type of the same name. Many programmers naturally use the SQL FLOAT data type every- where they need fracti...

Ngày tải lên: 26/01/2014, 08:20

... INDEX Microsoft SQL Server ALTER INDEX REORGANIZE, ALTER INDEX REBUILD, or DBCC DBREINDEX MySQL ANALYZE TABLE or OPTIMIZE TABLE Oracle ALTER INDEX REBUILD PostgreSQL VACUUM or ANALYZE SQLite VACUUM How ... behavior of nul l in SQL. Unlike in most programming languages, SQL treats null as a special value, different from zero, false, or an empty string. This is true in standard SQL and m...

Ngày tải lên: 26/01/2014, 08:20

... com- bine them all into a single pass would be a nightmare. Writing SQL Automatically—with SQL When you split up a complex SQL query, the result may be many simi- l ar queries, perhaps varying ... writing one SQL statement to solve his complex update, I wrote a script to generate a set of simpler SQL statements that had the desired effect: Download Spaghetti-Query/soln/generate-upda...

Ngày tải lên: 26/01/2014, 08:20

... See-No-Evil/anti/white-space.php <?php $sql = "SELECT * FROM Bugs"; if ($bug_id) { $sql .= "WHERE bug_id = " . intval($bug_id); } $stmt = $pdo->prepare( $sql) ; Why would the query in ... development by follow- ing best practices in documentation, source code control, and testing. Exhibit A: Documentation There’s no such thing as self-documenting code. Although i...

Ngày tải lên: 26/01/2014, 08:20