Multiple Inserts in Temporary Table MYSQL - mysql

Question

Trying to execute 3 insert commands in MySQL temporary Table in Stored Procedure but select command shows only first insert was executed/inserted.
CREATE TEMPORARY TABLE IF NOT EXISTS OtDates (OtDatesList Date, TotalOTMinutes int);
#Fist Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values('2017-04-15', 400);
#Second Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values(#DateOtHalf, #TotalOTMinutesHalf);
#Third Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values(#DateOtFull, #TotalOTMinutesFull);
Select command returns only 2017-04-15, 400 while values from variables in 2nd and 3rd insert are not listed. If I remove the first insert command, the second one gets inserted and not the third one.
EDIT 2 :
Providing complete stored procedure
CREATE DEFINER=`root`#`localhost` PROCEDURE `Test0`()
begin
select #DateOtHalf:=DateofIn, #TotalOTMinutesHalf:=TotalOTMinutes from hrtpunch where TotalOTMinutes >= #ExtraWorkHalfDayInMin and TotalOTMinutes < #ExtraWorkFullDayInMin and EmpID = P_EmpID;
select #DateOtFull:=DateofIn, #TotalOTMinutesFull:=TotalOTMinutes from hrtpunch where TotalOTMinutes >= #ExtraWorkFullDayInMin and EmpID = P_EmpID;
CREATE TEMPORARY TABLE IF NOT EXISTS OtDates (OtDatesList Date, TotalOTMinutes int);
#Fist Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values('2017-04-15', 400);
#Second Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values(#DateOtHalf, #TotalOTMinutesHalf);
#Third Insert
insert into OtDates(OtDatesList,TotalOTMinutes) values(#DateOtFull, #TotalOTMinutesFull);
select * from OtDates;
end
EDIT 3 : Providing Sample Data and Table Structure from "hrtpunch"
Create Statement
CREATE TABLE `hrtpunch` (
`ID` int(11) NOT NULL AUTO_INCREMENT,
`TotalOTMinutes` int(11) DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB AUTO_INCREMENT=464 DEFAULT CHARSET=utf8;
Sample Data Insert
insert into hrtpunch (TotalOTMinutes) values(61);
insert into hrtpunch (TotalOTMinutes) values(600);
insert into hrtpunch (TotalOTMinutes) values(301);
insert into hrtpunch (TotalOTMinutes) values(0);
And Int Values returned for ExtraWorkHalfDayInMin is 160 and ExtraWorkFullDayInMin is 240

Answer 1

Try it like this:
CREATE TEMPORARY TABLE IF NOT EXISTS OtDates (OtDatesList Date, TotalOTMinutes int);
INSERT INTO OtDates (OtDatesList,TotalOTMinutes) VALUES
('2017-04-15', 400), (#DateOtHalf, #TotalOTMinutesHalf), (#DateOtHalf, #TotalOTMinutesHalf)
EDIT:
For SQL 2005, the code above doesn't work, so try this:
INSERT INTO OtDates (OtDatesList,TotalOTMinutes)
SELECT '2017-04-15', 400
UNION ALL
SELECT #DateOtHalf, #TotalOTMinutesHalf
UNION ALL
SELECT #DateOtHalf, #TotalOTMinutesHalf

Answer 2

Solved!
DROP TEMPORARY TABLE IF EXISTS `OtDates`;
CREATE TEMPORARY TABLE IF NOT EXISTS OtDates (OtDatesList Date, TotalOTMinutes int);
insert into OtDates(OtDatesList,TotalOTMinutes) select #DateOtHalf:=DateofIn, #TotalOTMinutesHalf:=TotalOTMinutes from hrtpunch where TotalOTMinutes >= #ExtraWorkHalfDayInMin and TotalOTMinutes < #ExtraWorkFullDayInMin and EmpID = P_EmpID;
insert into OtDates(OtDatesList,TotalOTMinutes) select #DateOtFull:=DateofIn, #TotalOTMinutesFull:=TotalOTMinutes from hrtpunch where TotalOTMinutes >= #ExtraWorkFullDayInMin and EmpID = P_EmpID;