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Jul 20th, 2017
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PL/SQL 0.52 KB | None | 0 0
  1. CREATE OR REPLACE
  2. PROCEDURE PERIODE_MEESTE_OPNAMES
  3. AS
  4.   v_periode periode%ROWTYPE;
  5. BEGIN
  6.  
  7.   SELECT * INTO v_periode FROM periode
  8.   WHERE
  9.     (SELECT datum FROM
  10.       (
  11.       SELECT datum, COUNT(datum) FROM opname
  12.       GROUP BY datum
  13.       ORDER BY COUNT(datum) DESC
  14.       )
  15.     WHERE ROWNUM = 1
  16.     )
  17.   BETWEEN begindatum AND einddatum;
  18.  
  19.   DBMS_OUTPUT.PUT_LINE(v_periode.begindatum);
  20.   DBMS_OUTPUT.PUT_LINE(v_periode.einddatum);
  21.   DBMS_OUTPUT.PUT_LINE(v_periode.plaatsnaam);
  22.  
  23. END PERIODE_MEESTE_OPNAMES;
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