FK
Abbreviation with 2 meanings
| Stands for | Foreign key |
|---|---|
| Meanings | 2 |
| Categories | Technology & Computing, Geography & Places |
FK has two meanings. It stands for Foreign key (data & database) or Falkland Islands (country code).
Meanings of FK at a glance
| # | FK stands for | Context |
|---|---|---|
| 1 | Foreign key | Technology & Computing › Data & Database |
| 2 | Falkland Islands | Geography & Places › Country Code |
1. Foreign key
Technology & Computing · Data & Database Abbreviations
A column in one table that refers to the primary key of another, linking related rows, such as each order's customer_id. The database can enforce that every foreign key points to an existing row.
Example: The delete failed because an FK constraint still references that customer from the orders table.
Referential integrity rules decide what happens when a referenced row is deleted, with options such as CASCADE, SET NULL and RESTRICT. Indexing foreign key columns speeds up joins and deletes. Some high-scale systems skip enforced constraints for performance and check integrity in application code instead.
2. Falkland Islands
Geography & Places · Country Code Abbreviations
British Overseas Territory in the South Atlantic, also claimed by Argentina as the Islas Malvinas, and the scene of a 1982 war. The Falkland Islands' capital is Stanley.
Example: The customs form for the parcel to Stanley listed FK as the destination.
In a 2013 referendum, 99.8 percent of voters chose to remain British. Sheep farming and fishing licenses support the economy. The alpha-3 code is FLK.
Related abbreviations
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- ELT – Extract, load, transform
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- MDM – Master data management
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