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Data Types, Additional Techniques, Boolean logic
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- 1SQLStandard Query Language
• A popular human-readable programming language that is used to work with databases.
• These databases are not stored in text files or CSV files but in binary proprietary formats, of which the common ones include, MySQL, SQLite, MS Access, Oracle etc.
• SQL is not case sensitive but using capital letters for SQL keywords like SELECT helps create separate keywords from names and criteria.
• SQL can be either run:
o From a special window in a database package
o On top of a general-purpose language like Python or Java via special keywords.
o In batch mode from the OS command line
• Databases support a range of operations which are together known as SCRUD.
o S – Search
o C – Create
o R – Read
o U – Update
o D – Delete
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- GCSE Computing Karteikarten am Data Types, Additional Techniques, Boolean logic, erstellt von Samndeep _B am 01/03/2021.
- Erstellt von
- Samndeep _B
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