Joe Celko s SQL for Smarties - Advanced SQL Programming P1 doc
Joe Celko s SQL for Smarties - Advanced SQL Programming P84 pot
...
Joe Celko s
SQL for Smarties: Advanced SQL Programming, second edition; Joe
Celko s SQL Puzzles and Answers;
and
Joe Celko s Trees and Hierarchies
in SQL for Smarties.
INDEX 803
Subsets, ...
Intelli-
gent Enterprise
magazine (which won several Reader s Choice
Awards), and the war stories he tells to provide real-world insights
into SQL programming. H...
Joe Celko s SQL for Smarties - Advanced SQL Programming P1 doc
... Kaufmann Series in Data Management Systems
Series Editor:
Jim Gray, Microsoft Research
•
Joe Celko s SQL for Smarties: Advanced SQL Programming
, Third Edition, Joe Celko
•
Moving Objects ... Techniques with Java Implementations
, Ian
Witten and Eibe Frank
•
Joe Celko s SQL for Smarties: Advanced SQL Programming
, Second Edition, Joe Celko
•...
Joe Celko s SQL for Smarties - Advanced SQL Programming P2 potx
... Statistics 537
23.7 Cross Tabulations 538
23.7.1 Crosstabs by Cross Join 542
23.7.2 Crosstabs by Outer Joins 543
23.7.3 Crosstabs by Subquery 544
23.7.4 Crosstabs by CASE Expression 545
23.8 Harmonic ... Multivariable Descriptive Statistics in SQL 546
23.9.1 Covariance 546
23.9.2 Pearson s r 547
23.9.3 NULLs in Multivariable Descriptive Statistics 548
24
Regions, Runs, Gaps, Sequences,...
Joe Celko s SQL for Smarties - Advanced SQL Programming P3 docx
... useful work. In fact, the U .S. Government described
the SQL- 99 standard as “a standard in progress” and required SQL- 92
conformance for federal contracts.
The reason for the loyalty to SQL- 92 ... and Advanced Database Topics 770
Books on SQL- 92 and SQL- 99 771
Standards and Related Groups 771
Web Sites Related to SQL 772
Statistics 772
Temporal Databases 773
New Citations...
Joe Celko s SQL for Smarties - Advanced SQL Programming P4 ppt
... almost no two SQL products use the same internal structures.
SQL Server uses physically contiguous storage accessed by two kinds of
indexes; Teradata uses hashing; Nucleus (SAND Technology) uses ... statement is in Standard SQL; it existed in
most SQL products before it was standardized. It is still implemented in
many different ways, so you should see your product for details. Ag...
Joe Celko s SQL for Smarties - Advanced SQL Programming P5 pptx
... insert rows like this:
(&apos ;Joe Celko& apos;, 'Hilary Duff')
(&apos ;Joe Celko& apos;, 'Lindsay Lohan')
('Toby McGuire', 'Lindsay Lohan')
(&apos ;Joe Celko& apos;, ... a smart optimizer will spot. I leave same-sex marriages as an
exercise for the reader.
The Couples table allows us to insert these rows from the original set.
(&apos ;Joe C...
Joe Celko s SQL for Smarties - Advanced SQL Programming P6 docx
... is usually something like this.
CREATE ASSERTION Nobody_Unassigned
CHECK (NOT EXISTS
(SELECT *
FROM Personnel AS P
LEFT OUTER JOIN
JobAssignments AS J
ON P.ssn = J.ssn
WHERE J.ssn IS ... schedule:
('Mr. Celko& apos;, 'Database 101', 222, 6)
('Mr. Celko& apos;, 'Database 102', 223, 6)
('Ms. Shields', 'Database 101', 223, 6)
Ms. ......
Joe Celko s SQL for Smarties - Advanced SQL Programming P7 pot
...
constraint ensures that anything not aimed at a known person is
classified as an individual subscription.
Attribute Split Rows
Consider this table, which directly models a sign-in/sign-out sheet. ... Use a few statements such as:
INSERT INTO Foobar (a, b, c) VALUES ('a1', 'b1', 'c1');
INSERT INTO Foobar (a, b, c) VALUES ('a2', 'b2', 'c...
Joe Celko s SQL for Smarties - Advanced SQL Programming P8 potx
... Numbers for Keys 45
INSERT INTO FormsControl (form_nbr, seq,
VALUES (‘Flob-1/R’,
(SELECT MAX(seq)+1
FROM FormsControl
WHERE form_nbr = ‘Flob-1/R’),
);
You can also use views on the FormsControl ... the GUID does not have any sorting
sequence, so it is impossible to spot a missing value or use them to order
results. All you can do is use a
CHECK() with a regular expression for...
Joe Celko s SQL for Smarties - Advanced SQL Programming P9 ppsx
... BY clause is part
of a cursor, not part of a
SELECT statement. Because some SQL
products, such as SQL Server and Sybase, allow the user to create
implicit cursors, many newbies get this wrong. ... Use a CURSOR
The best performance improvement technique for cursors inside the
database is not to use them. SQL engines are designed for set processing,
and they work better with se...