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Update several classifications in one statement
Postgres: A CASE expression computes the new value for each row covered by the update predicate.
Postgres✓ Tested
Update several classifications in one statement
SQLite: A CASE expression computes the new value for each row covered by the update predicate.
SQLite✓ Tested
Visit adjacent pairs
Python: Use itertools.pairwise to process neighboring items without indexing.
Python✓ Tested
Visit selected elements
Use jQuery each to label every item with its one-based position.
jQuery✓ Tested
Write a text file
Write a C# string to a UTF-8 file.
C#✓ Tested
Write UTF-8 text to a file
Save a string without adding an extra newline.
Set-Content✓ Tested