SQL Navigator 6.3变量定义后自动消失问题咨询

Let's break down the issues you're facing—variables vanishing after partial runs, needing to redefine them every time, and the define keyword showing up as black—and walk through fixes that should align your setup with the working machines:

1. Verify Session Persistence Settings #

Even though you've enabled Scan Defines/Substitutions and Scan Binds/Substitutions, there might be a hidden option clearing variables between executions:

• Go to Tools > Options and navigate to the Script Execution or SQL Execution tab.
• Look for settings like "Clear substitution variables after partial execution" or "Reset session variables on partial run"—make sure these are unchecked.
• Enable any option labeled "Preserve substitution variables across executions" if available.

2. Check Variable Scope & Execution Context #

Variables in SQL Navigator are tied to the active session. If you're running partial queries in a new session (accidentally opening a new window, or resetting the session), the variables won't carry over:

• Always run your define statement and subsequent queries in the same editor window. Avoid using the "New Session" button between runs.
• When testing, run the full define + query first, then try selecting just the query and running it—this should reuse the existing variable if the session is intact.

3. Fix the define Syntax Highlighting Issue #

The black color for define suggests your syntax highlighting configuration is missing this keyword, or the config file is corrupted:

• Open Tools > Options > Editor > Syntax Highlighting.
• Ensure the selected language is SQL, then check the "Keywords" list. If define isn't present, add it manually and assign it the same color as other SQL keywords (like select, from).
• If that doesn't work, reset your editor configuration:
  1. Close SQL Navigator.
  2. Navigate to your user's Documents folder, find the Quest Software\SQL Navigator 6.3 directory.
  3. Rename the Config folder to Config_Backup (to preserve settings).
  4. Restart SQL Navigator—it will generate fresh default config files.

4. Ensure Consistent Software Version & Patches #

It's possible your installation is missing a critical patch that other working machines have applied:

• Check the "About" section of SQL Navigator to confirm your exact build number. Compare it to the working machines—if there's a discrepancy, apply the latest available patches for version 6.3.

5. Test with Alternative Variable Definition Methods #

If define still isn't sticking, try using the accept command to define variables, which sometimes has more reliable persistence:

accept my_var prompt "Enter variable value: "
select '&my_var' from dual;

Run the accept command once, then try running just the select statement—this should retain the variable value across runs.

内容的提问来源于stack exchange，提问作者Vendy