In addition to what the others said about using "LIKE", I would like to add two things:

• You may also use a FULLTEXT search. A bit more complex, but much more effective.
• You are fetching single records and pushing each column of them into an array. You'll get a flat array of all your dataset. Are you sure this is what you want?
  For example, if your data is the following:
  

  Field1	Field2
  aaa1	bbb1
  aaa2	bbb2
  aaa3	bbb3

  
  After your loop, it will produce an array like

  @array = (
      "aaa1\n",
      "bbb1\n",
      "aaa2\n",
      "bbb2\n",
      "aaa3\n",
      "bbb3\n" 
  );
  [download]

  Perhaps you should consider fetchall_arrayref instead. For more guidance, you may refer to DBI recipes.

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