sql - Oracle Statement Missing Expression -


I am having trouble finding the missing expression from the following statement. What am I losing? Any help is greatly appreciated. 

  Select c.first || '' || As "name", S. Start_data "pro start date", "end date" as sand_date, criminals from "frequency" as pc.con_freq, sentences, prob_contact pc WHERE c.criminal_id = s.criminal_id and p.low_amt and pc.high_amt Between s.violations;   
 As far as JOIN goes, it will be: ( true statement )  
  SELECT c.first | | '' || C.last AS "name", s.start_date AS "PROB start date", s.end_date AS "PROB expiration date", pc.con_freq AS "Frequency" to include offenders on Jammu Sentence c.criminal_id = s.criminal_id Prob_contact pc ON s.violations between JOIN pc_low_amt and pc.high_amt;  
 
 This is the first expression:  
  choose c .first || '' || In the form of "name", . ------------------------- ^   
 Maybe you mean:  
   
 In addition, you should learn to use the clear  join  syntax (though it does not have any relation to your problem).

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