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LENGTH in PostgreSQL - Examples & AI Generator
LENGTH in PostgreSQL - Examples & AI Generator
Whether you’re moving between SQL databases or just getting started, using the LENGTH function in PostgreSQL can be confusing—especially if you’re memorizing syntax for multiple platforms. The LENGTH function measures the number of characters in a string and has syntax nuances specific to PostgreSQL. Instead of recalling different commands, AI2sql instantly turns your plain-language questions into production-ready LENGTH queries, reducing errors and saving valuable time—no coding required.
LENGTH Syntax in PostgreSQL
How to Use LENGTH
In PostgreSQL, the LENGTH
function works as follows:
string: Any text or character column whose length you want to measure.
Tip: Unlike some databases, PostgreSQL uses LENGTH
(not CHAR_LENGTH) for character count. Ensure you’re using the correct function per database.
LENGTH Examples You Can Generate Instantly
Business-Focused SQL Samples
Find short customer names (under 5 characters):
Detect orders with unusually long notes:
List products with short SKUs:
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Why Use AI2sql Instead of Manual LENGTH Coding
No syntax memorization: Just describe your data need—get an instant, PostgreSQL-ready query.
Cross-database accuracy: AI2sql understands function differences across SQL engines—no more guesswork.
10-second query generation: Type natural language, copy optimized code, reduce mistakes and save hours.
Trusted by 50,000+ users across 80+ countries, AI2sql lets you focus on insights, not syntax.
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FAQ: LENGTH in PostgreSQL
Q: Does LENGTH count bytes or characters in PostgreSQL?
A:LENGTH
returns the number of characters fortext
types, not bytes. For byte length, useOCTET_LENGTH
.Q: What’s the difference between LENGTH and CHAR_LENGTH in PostgreSQL?
A: Both give character counts for strings—LENGTH
is standard in PostgreSQL, whileCHAR_LENGTH
is also supported for compatibility.Q: Can LENGTH handle NULL values?
A: If the input string is NULL,LENGTH
returns NULL.
Ready to skip the SQL lookup and build queries faster? Generate Your First Query Now with AI2sql.
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