PostgreSQL LEFT() function - w3resource
PostgreSQL TRIM() Functions: Syntax & Practical Examples | A 101 Guide
PostgreSQL BTRIM() function - w3resource
DBeaver Documentation
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SQL TRIM function
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PostgreSQL TRIM() Functions: Syntax & Practical Examples | A 101 Guide
PostgreSQL TRIM() Functions: Syntax & Practical Examples | A 101 Guide
sql - Trim all occurences of a character in PostgreSql - Stack Overflow
Add test for 'Trim' function for PostgreSQL · Issue #250 · zio/zio-sql · GitHub
SQL String functions Examples for SQL Server, Oracle and PostgreSQL
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