CREATE OR REPLACE FUNCTION uf_timestamp_diff(endtime in TIMESTAMP,starttime in TIMESTAMP)

RETURN INTEGER

AS

str VARCHAR2(50);

misecond INTEGER;

seconds INTEGER;

minutes INTEGER;

hours INTEGER;

days INTEGER;

BEGIN

str:=to_char(endtime-starttime);

misecond:=to_number(SUBSTR(str,INSTR(str,' ')+10,3));

seconds:=to_number(SUBSTR(str,INSTR(str,' ')+7,2));

minutes:=to_number(SUBSTR(str,INSTR(str,' ')+4,2));

hours:=to_number(SUBSTR(str,INSTR(str,' ')+1,2));

days:=to_number(SUBSTR(str,1,INSTR(str,' ')));

RETURN days*24*60*60*1000+hours*60*60*1000+minutes*60*1000+seconds*1000+misecond;

END;0b1331709591d260c1c78e86d0c51c18.png

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