SQL VISUAL QUICKSTART GUIDE- P31 ppt
SQL VISUAL QUICKSTART GUIDE- P31 ppt
... 1.0
AND ta2.royalty_share = 1.0;
MySQL 4.0 and earlier don’t support
subqueries; see the DBMS Tip in
“Understanding Subqueries” earlier in
this chapter.
In older PostgreSQL versions, con-
vert the floating-point ... values in correspon-
ding columns. The following query, for
example, works in Oracle, DB2, MySQL,
and PostgreSQL:
SELECT au_id, city, state
FROM authors
WHERE (city, state) IN
(SE...
SQL VISUAL QUICKSTART GUIDE- P14 ppt
... “Bio?”,
price,
price < 20 AS “<20?”
FROM titles;
This query runs on Microsoft Access, MySQL, and PostgreSQL. If your DBMS interprets the
=
symbol as an assignment operator rather than as a comparison ...
[^]
wildcard matches any single character
not within a range or set. Table 4.10 lists
some examples. The SQL standard uses
the
SIMILAR
operator for regex matching.
Regex support va...
SQL VISUAL QUICKSTART GUIDE- P16 ppt
... and 10.0 (a
float). Microsoft Access, Oracle, and
MySQL return the result you’d expect
(Figure 5.6a), but Microsoft SQL Server,
DB2, and PostgreSQL truncate the result
of an integer division (Figure ... 82.6
T12 507 50 50.7
T13 802 80 80.2
Figure 5.6b Result of Listing 5.6 for Microsoft SQL
Server, DB2, and PostgreSQL. Dividing two integers
yields an integer; the fractional part of the re...
SQL VISUAL QUICKSTART GUIDE- P18 ppt
... in the DBMSs are
REPLACE()
(Microsoft Access,
Microsoft SQL Server, DB2, and
MySQL),
REGEXP_REPLACE()
(Oracle),
and
OVERLAY()
(PostgreSQL).
■
In Microsoft Access, the
position function is
InStr(start_position, ...
DATEDIFF()
in Microsoft
Access and Microsoft SQL Server,
ADD_MONTHS()
in Oracle, and
DATE_ADD()
and
DATE_SUB()
in MySQL.
Complex date and time arithmetic is so
common in SQL...
SQL VISUAL QUICKSTART GUIDE- P37 ppt
... later in this
chapter.
■
Microsoft SQL Server doesn’t
support the data type
DATE
. To
run Listing 11.1, change the data type of
the column
pubdate
to
DATETIME
.
MySQL might change the type of a ... nullability
constraint. To run Listing 11.4, omit each
nullability constraint that isn’t
NOT NULL
.
DB2 and MySQL don’t accept named
NOT NULL
constraints. Omit the clause
CONSTRAINT constraint...
SQL VISUAL QUICKSTART GUIDE- P47 ppt
... date1,
MAX(pubdate) AS date2
FROM titles) t1;
Listing
MySQL
MySQL metadata are available through the
schema
INFORMATION_SCHEMA
and via
mysql
(Listing 15.43).
443
SQL Tricks
Retrieving Metadata
Listing 15.43 ... Metadata
Listing 15.44 Metadata statements and commands
for PostgreSQL.
List the databases (Method 1).
psql list
List the databases (Method 2, in psql).
\l
List the schemas.
SEL...
SQL VISUAL QUICKSTART GUIDE- P49 ppt
... 22
command-line tools
IBM DB2
db2
, 23–26
MySQL
mysql
, 27–29
Oracle
sqlplus
, 17–19
PostgreSQL
psql
, 30–32
SQL Server
osql
, 11, 12–13
SQL Server
sqlcmd
, 10, 15
using SQL with, 2, 3
comments, 62, 64
committing ... autocommit mode, 404
SQL servers vs. desktop, xv
support for SQL, ix
transactions in, 399–404
using SQL on, 2–3
using with book, xviii
working with indexes, 378–3...
SQL VISUAL QUICKSTART GUIDE- P1 pps
... . 456
Working with Hierarchies . . . . . . . . . . . . . . . . . . . 458
Index 465
Visual QuickStart Guide
SQL, Third Edition
Chris Fehily
Peachpit Press
1249 Eighth Street
Berkeley, CA 94710
510/524-2178
510/524-2221 ... 0-321-55357-8
987654321
Printed and bound in the United States of America
Peachpit Press
VISUAL QUICKSTART GUIDE
SQL
Third Edition
Chris Fehily
SQL VISUAL QUICKSTART GUIDE- P2 ppsx
... standard SQL that the resulting languages—
Transact -SQL, PL /SQL, and SQL PL, respec-
tively—can be considered to be separate
languages in their own right, rather than
just supersets of SQL. One ... i.1).
“ISO/IEC SQL isn’t a commonly used term,
so I’ll stick to the better-known “ANSI SQL
name throughout this book. This book is
based on the 2003 SQL standard, so you
should consider...
SQL VISUAL QUICKSTART GUIDE- P3 doc
... or DBMS-specific SQL to import and export
SAS data via PROC SQL or SAS/Access. A SAS dataset is equivalent to an SQL table, an
observation to an SQL row, and a variable to an SQL column.
You can ...
Running SQL Programs
In this chapter, I’ll describe how to run SQL
programs on these DBMSs:
◆
Microsoft Access 2007
◆
Microsoft SQL Server 2008
◆
Oracle 11g
◆
IBM DB2 9.5
◆
MySQL...
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