Tài liệu SQL Antipatterns- P8 doc
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...
Tài liệu SQL Antipatterns- P1 docx
... 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...
Tài liệu SQL Antipatterns- P2 doc
... 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...
Tài liệu Adaptive WCDMA (P8) docx
... 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.
Tài liệu MIDDLEWARE NETWORKS- P8 doc
... 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
Tài liệu Autodesk Inventor P8 docx
... 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...
Tài liệu SQL Antipatterns- P3 ppt
... 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...
Tài liệu SQL Antipatterns- P4 ppt
... 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...
Tài liệu SQL Antipatterns- P5 ppt
... 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...
Tài liệu SQL Antipatterns- P6 pptx
... 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...