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<title>SUBTRACT_TIME_FROM_DATE</title>

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<p class=Coding>REPORT ZEXAMPLE.</p>

<p class=Coding>DATA: V_DATE <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->LIKE 
 SY-DATUM,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->V_IPRKZ 
 <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->LIKE MARA-IPRKZ.</p>

<p class=Coding>PARAMETERS: P_DATE LIKE SY-DATUM,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->P_TIME 
 LIKE MARA-MHDHB,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->P_DAY 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->RADIOBUTTON 
 GROUP RADI,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->P_MONTH 
 <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->RADIOBUTTON 
 GROUP RADI,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->P_WEEK 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->RADIOBUTTON 
 GROUP RADI,</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->P_YEAR 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->RADIOBUTTON 
 GROUP RADI.</p>

<p class=Coding>IF P_DAY EQ 'X'.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->V_IPRKZ 
 = 'D'.</p>

<p class=Coding>ELSEIF P_MONTH EQ 'X'.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->V_IPRKZ 
 = 'M'.</p>

<p class=Coding>ELSEIF P_WEEK EQ 'X'.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->V_IPRKZ 
 = 'W'.</p>

<p class=Coding>ELSEIF P_YEAR EQ 'X'.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->V_IPRKZ 
 = 'Y'.</p>

<p class=Coding>ENDIF.</p>

<p class=Coding>* CONVERT TO INTERNAL REPRESENTATION</p>

<p class=Coding>CALL FUNCTION 'CONVERSION_EXIT_PERKZ_INPUT'</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->EXPORTING</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->INPUT= 
 V_IPRKZ</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->IMPORTING</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->OUTPUT 
 <!--kadov_tag{{<spaces>}}-->&nbsp;<!--kadov_tag{{</spaces>}}-->= V_IPRKZ.</p>

<p class=Coding>CALL FUNCTION 'SUBTRACT_TIME_FROM_DATE'</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->EXPORTING</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->I_IDATE 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 P_DATE</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->I_TIME 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 P_TIME</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->I_IPRKZ 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 V_IPRKZ</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->IMPORTING</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->O_IDATE 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 V_DATE</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->EXCEPTIONS</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->INVALID_PERIOD 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 1</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->INVALID_ROUND_UP_RULE 
 = 2</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->INTERNAL_ERROR 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 3</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->OTHERS 
 <!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->= 
 4.</p>

<p class=Coding>IF SY-SUBRC EQ 0.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->WRITE:/ 
 'NEW DATE:', V_DATE.</p>

<p class=Coding>ELSE.</p>

<p class=Coding><!--kadov_tag{{<spaces>}}-->&nbsp;&nbsp;<!--kadov_tag{{</spaces>}}-->WRITE:/ 
 'COULD NOT CALCULATE THE DATE'.</p>

<p class=Coding>ENDIF.</p>

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