SQL Server Error 102: Incorrect Syntax (Fix Guide)

The Error Message

What Causes SQL Server 102?

SQL Server Error 102 is a syntax error. The T-SQL parser found something unexpected at the position indicated in the error message.

Common Causes

How to Fix It

Step 1: Add GO between DDL statements

GO separates T-SQL batches. CREATE, ALTER, and DROP often need GO between them.

-- Wrong:
CREATE TABLE users (id INT PRIMARY KEY);
CREATE TABLE orders (id INT PRIMARY KEY);

-- Correct in SSMS:
CREATE TABLE users (id INT PRIMARY KEY);
GO
CREATE TABLE orders (id INT PRIMARY KEY);
GO

Step 2: Use T-SQL syntax instead of MySQL

SQL Server uses T-SQL dialect which has different syntax for LIMIT, NULL handling, and string functions.

-- MySQL LIMIT:
SELECT * FROM users LIMIT 10;

-- T-SQL TOP:
SELECT TOP 10 * FROM users;

-- MySQL IFNULL:
SELECT IFNULL(name, 'N/A') FROM users;

-- T-SQL ISNULL:
SELECT ISNULL(name, 'N/A') FROM users;

Step 3: Add semicolon before CTE

T-SQL requires a semicolon before WITH when it follows another statement. Best practice: always end statements with semicolons.

-- Wrong:
SELECT 1
WITH cte AS (SELECT id FROM users)
SELECT * FROM cte;

-- Correct:
SELECT 1;
WITH cte AS (SELECT id FROM users)
SELECT * FROM cte;

Step 4: Correct variable syntax

T-SQL variables must start with @ and be declared with DECLARE.

-- Wrong:
DECLARE username VARCHAR(100);

-- Correct:
DECLARE @username VARCHAR(100);
SET @username = 'John';
SELECT * FROM users WHERE name = @username;

How to Prevent This Error

Always end T-SQL statements with semicolons. Use SQL Server Management Studio (SSMS) for syntax highlighting. When converting from MySQL, review T-SQL syntax differences for LIMIT, NULL functions, and string operations.

Fix SQL Server Errors with AI2SQL

Instead of debugging SQL syntax manually, describe what you need in plain English and let AI2SQL generate the correct query for SQL Server.

Frequently Asked Questions