Ebook
Aus diesem Grunde stellt diese Website für Sie Ihre Probleme zu decken. Wir zeigen Ihnen einige genannten Publikationen in allen Arten und auch Themen. Von üblichen Autor der berühmten einen sind sie alle überdachten in dieser Internet - Seite zu geben. Dieser wird Sich für die Veröffentlichung sieht; Sie müssen nur auf den Link Seite gehen in dieser Internet - Seite anzuzeigen , und dann das Herunterladen wählen. Es dauert sicher nicht oft mal eine Veröffentlichung zu erhalten Es auf Ihrer Netzverbindung ab. Einfach kaufen und auch die weichen Dokumente dieser Publikation herunterladen und installieren
Ebook
Suche bestimmte Publikation in die Bücher halten könnten Sie nicht versichern Führung zu erhalten. Haben Sie schon einmal mit diesem Problem umgegangen? Dies ist ein typisches Problem, das viele Menschen Gesicht, während solches spezielles Buch bekommen oder bekommen. Üblicherweise wird fehlen viele von ihnen das Buch aufgeführt und liefert in Führungsspannung außerdem, wenn es mit dem neu eingeführten Veröffentlichung zuordnet, den effektivsten Anbieter Bücher, oder einer der beliebtesten Publikationen, wird es lassen Sie mehrmals warten auf erhalten es, wenn Sie es schnell haben handhaben.
Now this book is presented for you guide lovers. Or are you not type of book fan? Don't bother, you can also read this book as others. This is not kind of required publication to refer for certain community. Yet, this publication is additionally referred for everybody. As understood, everybody could obtain the breakthroughs and expertise from all publication kinds. It will certainly depend on the personal preference and should read certain publication. And also once more, will certainly be available for you to obtain that you need and want.
To overcome your issues in seeking for the new info, a publication will aid you ore. A lot more functions as well as even more presence of the books to collects could use special points. Yeah, publication could lead you for certain circumstance. It is not just for the certain things and also areas. When you have determined just what kind of publications you wish to check out, you could start to obtain the book from now. Currently, we will share the link of in this website.
Obtaining the soft documents of this book can be easy done. Simply by clicking the link, you could link to the book soft file as well as start to get it. When you have saved in your gadget, you could sooner begin reviewing. See from the title of this book, it can be selected and also detailed just how this book is presented. They are truly well done therefore best to check out accompanying your downtime.
Produktinformation
Format: Kindle Ausgabe
Dateigröße: 1944 KB
Seitenzahl der Print-Ausgabe: 212 Seiten
ISBN-Quelle für Seitenzahl: 1783989009
Verlag: Packt Publishing; Auflage: 1 (26. September 2016)
Verkauf durch: Amazon Media EU S.Ã r.l.
Sprache: Englisch
ASIN: B01LFAN8B6
Text-to-Speech (Vorlesemodus):
Aktiviert
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $ttsPopover = $('#ttsPop');
popover.create($ttsPopover, {
"closeButton": "false",
"position": "triggerBottom",
"width": "256",
"popoverLabel": "Text-zu-Sprache Popover",
"closeButtonLabel": "Text-zu-Sprache Popover schließen",
"content": '
});
});
X-Ray:
Nicht aktiviert
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $xrayPopover = $('#xrayPop_3EEBD95AB23111E981C79F57FC0104CF');
popover.create($xrayPopover, {
"closeButton": "false",
"position": "triggerBottom",
"width": "256",
"popoverLabel": "X-Ray Popover ",
"closeButtonLabel": "X-Ray Popover schließen",
"content": '
});
});
Word Wise: Nicht aktiviert
Screenreader:
Unterstützt
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $screenReaderPopover = $('#screenReaderPopover');
popover.create($screenReaderPopover, {
"position": "triggerBottom",
"width": "500",
"content": '
"popoverLabel": "Der Text dieses e-Books kann auf allen gängigen Readern gelesen werden. Beschreibungen von Bildern (auch bekannt als “ALT-Textâ€) können Sie mit der Kindle für PC-App lesen, sofern der Verlag sie bereitstellt. Sollte dieses Buch anderen Arten von nicht textbasierten Inhalten enthalten (wie Tabellen oder mathematische Gleichungen), können diese derzeit nicht von Readern gelesen werden.",
"closeButtonLabel": "Screenreader Popover schließen"
});
});
Verbesserter Schriftsatz:
Aktiviert
P.when("jQuery", "a-popover", "ready").execute(function ($, popover) {
var $typesettingPopover = $('#typesettingPopover');
popover.create($typesettingPopover, {
"position": "triggerBottom",
"width": "256",
"content": '
"popoverLabel": "Popover für verbesserten Schriftsatz",
"closeButtonLabel": "Popover für verbesserten Schriftsatz schließen"
});
});
Durchschnittliche Kundenbewertung:
Schreiben Sie die erste Bewertung
Amazon Bestseller-Rang:
#1.055.830 Bezahlt in Kindle-Shop (Siehe Top 100 Bezahlt in Kindle-Shop)
This book consists of a random selection of semi-literate re-hashes of the user manual and Wikipedia pages, along with a few code examples, most of which are broken.The authors jump from one topic to the next, never explaining anything in any real detail. For example, chapter one flits aimlessly from creating views, to creating cursors, to the GROUP BY clause to ‘complex’ topics such as subqueries and joins. This must be the only book on any database in which cursors are mentioned in the first few pages.Here are a few examples of how wretched the text is. For example, the section on cursors says:“It then uses a FETCH statement with the NEXT keyword to select the fifth row, and then another FETCHstatement with the PRIOR keyword to again select the fourth retrieved row.’To illustrate this, the authors provide the following:FETCH 4 FROM order_cur;Clearly, some code has been missed out, and nobody has noticed.In the section on JSON, several lines have again been missed out and/or replaced with the wrong code:“Let's create a normal table and insert data into it:CREATE TABLE product_info (id serial, product_name text, product_categorytext, price int);INSERT INTO product_info (product_name ,product_category , price)VALUES ('Chair', 'Furniture', 200);Now, since we have inserted the record in a normal way, we will change this to the JSONformat. We will use the row_to_json function:row_to_json-----------------------------------------------{"f1":"Chair","f2":"Furniture","f3":200}(1 row)â€I have no idea if the authors actually believe that typing ‘row_to_json’ would produce the result they claim: it obviously doesn’t. Nor does it work like this inside the obviously needed select statement. The next few lines are even more bizarre:“Similarly, we can output the array values as JSON with the help of the array_to_json function:CREATE TABLE product_info(id serial, product_category text, producttext[]);INSERT INTO product_info (product_category , product) VALUES('Stationary', '{"Pen","Pencil"}');â€Nothing is being output as JSON: instead, a new table is being created using JSON instead of text.Here’s another strange explanation:SELECT product, SUM(sale) AS "Total sales"FROM order_detailsGROUP BY product;‘In the select statement, we have sales where we applied the SUM function and the other fieldproduct is not part of SUM, we must use in the GROUP BY clause.’The authors are attempting to say “we must group on a field other than the one which we are aggregating: we use ‘group by’ on the product field and use the aggregate sum() function on the ‘sale’ field’â€.Here’s yet another example where the explanation is incomprehensible:“The HAVING clause is used to specify which individual group(s) is to be displayed, or in simple language we use theHAVING clause in order to filter the groups on the basis of an aggregate function condition.â€Compare this drivel with the clear explanation in the (free) user manual:“WHERE selects input rows before groups and aggregates are computed (thus, it controls which rows go into the aggregate computation), whereas HAVING selects group rows after groups and aggregates are computed.â€The section on transactions fails to explain either how isolation levels work or which ones PostgreSQL implements. The explanation of serializable isolation is particularly inadequate:‘As you saw in the preceding table, moving from the Read Uncommitted to Serializable level, the phenomena behavior is reducing.’In those cases where there isn’t a Wikipedia page as a source, the text descends into meaningless waffle. For example:“In a largely built database, there are cases where performance may not be up to the desiredexpectations. And, achieving more practical goals may spoil the purity of the design. Thesteps for the optimized design should be considered with the utmost priority before youeven consider any optimization.â€Clearly, neither of the authors has a proper grasp of English, and neither has enough experience of PostgreSQL to be able to write a useful book on the subject. Unbelievably, this garbage has been checked by over a dozen people. The book boasts a copy editor, two reviewers, a proof-reader, a technical editor, a content development editor, a production coordinator, a commissioning editor, an acquisition editor and a production coordinator. All of these people must be even more inept at their job than the authors or else asleep.
PDF
EPub
Doc
iBooks
rtf
Mobipocket
Kindle
