title: Oracle Regular Expression - Remove space between alphabetic tokens of length 1 within a string
body: <p>Oracle Version : 11.2</p>
  
  <p>I am new to use of regular expressions and needed some help with coming up with the right REGEXP_REPLACE for our requirement explained below.</p>
  
  <p>Requirement: Remove space between alphabetic tokens of length 1 within a string.</p>
  
  <p>Example 1:</p>
  
  <pre><code>"The I B M Corporation N Y US" 
  </code></pre>
  
  <p>...should get converted to:</p>
  
  <pre><code>"The IBM Corporation NY US"
  </code></pre>
  
  <p>Example 2:</p>
  
  <pre><code>"The P N CD FUND of J P R M"
  </code></pre>
  
  <p>...should get converted to:</p>
  
  <pre><code>"The PN CD FUND of JPRM"
  </code></pre>