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An existence check before reading a file can catch and/or prevent a fatal error, for instance. For that reason, most programming language libraries contain a means of checking whether a file exists. An existence check can sometimes involve a " brute force " approach of checking all records for a given identifier, as in this Microsoft Excel ...
In October 2017, Google launched Cloud Firestore, a real-time document database as the successor product to the original Firebase Realtime Database. [13] [14]
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The #ifexist function selects one of two alternatives depending on whether a page exists at the specified title. {{#ifexist: page title | value if page exists | value if page doesn't exist}} The page can be in any namespace, so it can be an article or "content page", an image or other media file, a category, etc.
A document-oriented database is a specialized key-value store, which itself is another NoSQL database category. In a simple key-value store, the document content is opaque. A document-oriented database provides APIs or a query/update language that exposes the ability to query or update based on the internal structure in the document. This ...
The restaurant opened on October 8, 1990, in Shenzhen's special economic zone. The South China Morning Post reported that on its opening day, the unique McDonald's received over 40,000 customers ...
TemplateData for Category if exists. Outputs a link to a category if it exists; otherwise returns nothing. Template parameters [Edit template data]