问题描述:

I have sentence:

I & my dog went to a walk. We <b>are walking</b> every morning. This is my {<PARAMETER>} and some other special chars <>.

I would like to have some rexep_replace expression to change only special characters that is not a tag or my parameter pattern:

Output would be:

I @amp; my dog went to a walk. We <b>are walking</b> every morning. This is my {<PARAMETER>} and some other special chars @lt;@gt;.

Instead of @ must be &.

I would need SQL or PL/SQL code to do this.

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