How to fix Error 2248 on Windows Server 2025 / Windows 11

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Troubleshooting Guide: SQL Server Error 2248 – Syntax Error Near ‘%ls’

Why This Error Happens

Error 2248 occurs when the SQL Server parser encounters a token, keyword, or character sequence that does not conform to valid T-SQL grammar at that specific location in the batch. This is commonly triggered by mismatched brackets or quotes, use of a reserved keyword as an identifier without delimiters, or incompatible syntax left over from a deprecated feature in older compatibility levels. In some cases, corrupted script files (encoding issues, hidden Unicode characters) copied from external sources into SQL Server Management Studio (SSMS) can also introduce invalid characters that trigger this parsing failure.

Step-by-Step Resolution Guide

Step 1: Isolate the Offending Statement

  • Open the query in SSMS or Azure Data Studio and locate the line number referenced alongside Error 2248 in the Messages pane.
  • Temporarily comment out blocks of code using /* */ to narrow down exactly which clause or sub-statement is causing the parser to fail.
  • Run SELECT @@VERSION; separately to confirm you are testing against the correct SQL Server 2025 engine instance.

Step 2: Validate Keywords, Quotes, and Brackets

  • Check for reserved words (e.g., USER, ORDER, KEY) used as column or table names without proper delimiters; wrap them in square brackets [ ] or double quotes.
  • Ensure every opening parenthesis (, single quote ', and bracket [ has a matching closing counterpart—unmatched symbols are the most frequent cause of this error.
  • Verify you aren’t using syntax deprecated in newer compatibility levels; check your current level via:
  SELECT compatibility_level FROM sys.databases WHERE name = 'YourDatabaseName';

Step 3: Clean the Script Source and Re-encode

  • If the script was copied from a PDF, Word document, or web page, paste it into a plain text editor (like Notepad) first to strip hidden formatting or non-standard Unicode characters (e.g., curly quotes “ ” instead of straight quotes ‘ ‘).
  • Re-copy the cleaned text into a new query window in SSMS rather than editing the corrupted tab directly.
  • Save the file using UTF-8 or Windows-1252 encoding under File > Save As > Save with Encoding to prevent silent character corruption on Windows Server 2025 environments.

Step 4: Check for Missing GO Batch Separators

  • If you are combining DDL (like CREATE PROCEDURE) with other statements, ensure a GO batch separator exists between them, as mixing certain DDL commands within the same batch causes syntax parsing conflicts.
  • Confirm that dynamic SQL strings being built via EXEC (@sql) have correctly escaped single quotes (doubled '' instead of ').

Alternative or Verification Steps

  • Verify the Fix: Execute the isolated statement alone (without the rest of the script) to confirm it compiles and returns a “Command(s) completed successfully” message with no red error text in the Messages tab.
  • Alternative Solution: If the error persists despite clean syntax, use the Query > Parse menu option in SSMS (or Ctrl+F5) to validate syntax without full execution; this can isolate parser-specific bugs separate from runtime permission or object-existence errors.