ERROR

Entschuldigung - obwohl wir unser Bestes getan haben: es ist ein Fehler aufgetreten
Typedatabase
MessageYou have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near "AND SUBSTRING(categories_id,4,1) != "0") AS cat4, (SELECT categorie..." at line 5
QuerySELECT (SELECT categories_id FROM categories_description WHERE language_id = 1 AND categories_id = 000) AS cat1, (SELECT categories_id FROM categories_description WHERE language_id = 1 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2, (SELECT categories_id FROM categories_description WHERE language_id = 1 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3, (SELECT categories_id FROM categories_description WHERE language_id = 1 AND categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4, (SELECT categories_name FROM categories_description WHERE language_id = 1 AND categories_id = 000) AS cat1name, (SELECT categories_name FROM categories_description WHERE language_id = 1 AND categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2name, (SELECT categories_name FROM categories_description WHERE language_id = 1 AND categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3name, (SELECT categories_name FROM categories_description WHERE language_id = 1 AND categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4name, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 000) AS cat1url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3url, (SELECT url_text FROM commerce_seo_url_without_language WHERE categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4url, (SELECT wod_count_products FROM categories WHERE categories_id = 000) AS cat1cnt, (SELECT wod_count_products FROM categories WHERE categories_id = 00 AND SUBSTRING(categories_id,2,1) != "0") AS cat2cnt, (SELECT wod_count_products FROM categories WHERE categories_id = 0 AND SUBSTRING(categories_id,3,1) != "0") AS cat3cnt, (SELECT wod_count_products FROM categories WHERE categories_id = AND SUBSTRING(categories_id,4,1) != "0") AS cat4cnt

Mei Gates 
Data Schema Basics [EPUB ebook] 

Ủng hộ

Data Schema Basics offers a vital introduction to the world of data schemas and validation formats, crucial for anyone working with data. The book emphasizes that well-defined data schemas and rigorous validation are not just theoretical concepts but practical necessities for ensuring data quality and reliability. Discover how understanding data schemas can prevent flawed analyses and system failures, ultimately leading to better business decisions. The book highlights how early standardization efforts in database systems paved the way for the complex data models we use today.

The book progresses logically, starting with fundamental concepts like data models and schema languages before moving on to design principles and validation techniques applicable to various databases like JSON, XML, or SQL. It explores data integrity constraints and methods for handling evolving data requirements and culminates in practical applications such as data integration, data warehousing, and data governance, showcasing real-world case studies.

Focusing on actionable advice and practical techniques, the book offers a pragmatic approach to avoiding common pitfalls in schema design and validation.

€6.04
phương thức thanh toán
Mua cuốn sách điện tử này và nhận thêm 1 cuốn MIỄN PHÍ!
Ngôn ngữ Anh ● định dạng EPUB ● Trang 139 ● ISBN 9788233999599 ● Kích thước tập tin 0.6 MB ● Phiên dịch AI ● Nhà xuất bản Publifye ● Quốc gia NO ● Được phát hành 2025 ● Có thể tải xuống 24 tháng ● Tiền tệ EUR ● TÔI 10214861 ● Sao chép bảo vệ không có

Thêm sách điện tử từ cùng một tác giả / Biên tập viên

75.397 Ebooks trong thể loại này