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NULL values represent missing unknown data. By default, a table column can hold NULL values. This chapter will explain the IS NULL and IS NOT NULL operators. SQL NULL Values If a column in a table is...
Found in app SQL Reference
SQL Reference
(670 total ratings on Google Play)
A4DROID / Books
Downloads: 50k
(670 total ratings on Google Play)


SQL Reference will help you to understand the basics of SQL and become familiar with the advanced level. Content of the handbook is divided into four categories:
- Basics
- Advanced
- Functions
- Articles

The description of each function includes some examples with comments.
Reference is also shown major differences of the syntax of the various databases: MySQL, SQL Server, Oracle, Access.

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5Du'a for fear of not completing Umrah
Found in app Hajj Umrah Guide English FREE
" Allahumma mahillee haithu habastanee" O Allah, [If I am prevented by an obstacle then indeed] my place is where You prevent me.
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Found in app Brain Boosting Foods
Dehydration can damage your ability to focus and recall information, so make sure you’re drinking at least 8 cups of water per day to keep your brain happy and hydrated. Make sure you have one of...
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Found in app Supercars Free
Dr. Ing. h. c. F. Porsche AG (произносится По́рше, полное наименование Doktor Ingenieur honoris causa Ferdinand Porsche Aktiengesellschaft — Акционерное общество почётного доктора инженерных наук...
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Found in app Mobile Catalog
Display: 4. 7 inch, 1980 x 1080, 468 PPI CPU: Qualcomm Snapdragon 600, quad-core, 1700MHz RAM: 2 GB Operating System: Android 4. 1 SIM Card type: micro SIM Memory size: 32/64 GB Network: GSM...
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6Supplication between Safa and al-Marwah1
Found in app Hajj Umrah Guide English FREE
" Subhan-Allah wal-hamdu-lillahi wa la ilaha ill-Allah wa-Allahu Akbar wa la haula wa la quwwata illa-billa."
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Imbabura Treefrog
Found in app Frogs
Hypsiboas picturatus Location Colombia and Ecuador Its natural habitats are subtropical or tropical moist lowland forests and rivers.