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This dialog box is displayed if you right-click a directory or file in the Files navigator and select Tag SQL. In the selected file or in files under the selected directory, all SQL statements that match a specified pattern are rewritten so that a comment is inserted after the SELECT keyword in the main query block that uniquely tags the statement.
For example, a PL/SQL source containing the statement "SELECT 1 FROM dual" would be rewritten into something like "SELECT /* PREFIX 00f7d2 */ FROM dual". This allows easy identification of problematic statements that appear in performance views such as V$SQL.
Tag Prefix: Text to appear after "PREFIX" in inserted comments.
Selected Extensions: Extensions of files on which to perform the SQL statement rewrite operations.