LENGTH in Oracle - Examples & AI Generator

Handling string functions like LENGTH in Oracle can get tricky, especially if you're switching databases or just getting started with SQL. While Oracle's LENGTH function measures the number of characters—including special or Unicode characters—other systems often differ slightly in behavior. Instead of scanning documentation or memorizing syntax, AI2sql lets you generate production-ready LENGTH queries in under 10 seconds—no coding required.

LENGTH Syntax in Oracle

Basic Syntax

LENGTH(string_expr)

• string_expr: Any VARCHAR2, CHAR, NVARCHAR2, or NCHAR expression.

• Returns the number of characters, not bytes. Beware: some databases count bytes, but Oracle counts characters, which affects results for multi-byte characters.

LENGTH Examples You Can Generate Instantly

Count Characters in Customer Names

SELECT customer_name, LENGTH(customer_name) AS name_length
FROM customers;

Find Products with Short Descriptions

SELECT product_id, product_desc 
FROM products 
WHERE LENGTH(product_desc) < 25;

Order List Sorted by Comment Length

SELECT order_id, comments, LENGTH(comments) AS comment_length
FROM orders
ORDER BY comment_length DESC;

Generate LENGTH queries in 10 seconds with AI2sql

Why Use AI2sql Instead of Manual LENGTH Coding

• Save time: No more syntax checks or Oracle documentation searches.

• Consistent accuracy: Instantly adapt Oracle LENGTH syntax for different business needs.

• No coding required: Enter natural language prompts and get production-ready SQL.

• Trusted performance: 50,000+ users across 80+ countries rely on AI2sql every day for instant query generation.

Where to Start

• Try AI2sql Generator for interactive query building

• Learn LENGTH details, tips, and more examples

Frequently Asked Questions

• Is LENGTH in Oracle byte-based or character-based?
  In Oracle, LENGTH returns the number of characters, not bytes. Use LENGTHB if you need the byte count.

• Does LENGTH include spaces and special characters?
  Yes, spaces and all visible or Unicode characters are included in the count.

• How is Oracle LENGTH different from other SQL databases?
  Function naming may be similar, but behavior (byte vs. character counting) can differ. AI2sql detects the right syntax instantly for you.

Skip memorizing every function detail! In just 10 seconds, you can generate optimized LENGTH queries for any Oracle business scenario—no manual coding, no confusion. Generate Your First Query Now.