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SQLiteGetting Started

Update one row using its primary key

SQLite: Use a precise WHERE condition to change only the intended row in a scratch table.

SQLite✓ Tested
SQLBulk changes & set operations

Update several classifications in one statement

SQL: A CASE expression computes the new value for each row covered by the update predicate.

SQL✓ Tested
SQL ServerBulk changes & set operations

Update several classifications in one statement

SQL Server: A CASE expression computes the new value for each row covered by the update predicate.

SQL Server✓ Tested
PostgresBulk changes & set operations

Update several classifications in one statement

Postgres: A CASE expression computes the new value for each row covered by the update predicate.

Postgres✓ Tested
SQLiteBulk changes & set operations

Update several classifications in one statement

SQLite: A CASE expression computes the new value for each row covered by the update predicate.

SQLite✓ Tested
PowerShellGetting Started

Use a counted loop

PowerShell: Use a counted loop using PowerShell 7.

PowerShell✓ Tested
PowerShellStrings & literal text

Use a literal value in a regular expression

PowerShell: Regex.Escape prevents a literal dot or other metacharacter from changing the match.

PowerShell✓ Tested
JavaFile operations & binary data

Visit files recursively

Java: Close the stream returned by Files.walk and sort relative paths for stable output.

Java✓ Tested
PowerShellStrings & literal text

Write a multiline string without expanding variables

PowerShell: A single-quoted here-string preserves dollar signs literally.

PowerShell✓ Tested
PythonJSON & CSV

Write dictionaries to CSV

Write a list of dictionaries to a CSV file with a header row and a predictable column order.

csv✓ Tested
PowerShellStructured formats & encodings

Write object records to a CSV file

PowerShell: Export-Csv uses property names as headers and quotes values when needed.

PowerShell✓ Tested
PowerShellFiles & paths

Write UTF-8 text to a file

Save a string without adding an extra newline.

Set-Content✓ Tested