Check out example codes for "pl sql escape &". It will help you in understanding the concepts better.
Code Example 1
-- syntax (This is specifically for PLSQL) ||CHR(38)|| -- example (You want: 'This symbol, &, works!') 'This symbol, '||CHR(38)||', works!' -- Note: You could also use the "SET DEFINE ~;" code. Please see the -- reference/source (URL) for more details
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