Try PostgreSQL on linux
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The document describes setting up PostgreSQL database tables to store flight, fare, and seat data. It creates tables with the appropriate columns and constraints, and populates the flight table with randomly generated number, airline, and weekday values. It then performs sample queries on the flight table.
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![#FLIGHT
Number = []
Airline = []
Weekdays = []
def Generate_FLIGHT():
#Generate FLIGHT
Airline_Name = ['AirAsia','Nok_Air','ThaiSmile','ThaiAirways','BangkokAirways']
Weekdays_Name =
['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday']
i = 90000000;
t = time.clock()
t1 = time.clock()
d = 0;
while i< 100000000:
Number.append(i);
Airline.append(Airline_Name[(i-1)%5]);
if( i % 60 == 0):
d = d + 1
if( d == 7 ):
d = 0
Weekdays.append(Weekdays_Name[d]);
if( i % 1000000 == 0):
print (i)
# print Number[i],Airline[i],Weekdays[i]
i = i + 1
print( "Generate FLIGHT success")
t1 = time.clock()
print (t ,"seconds")
print (t1,"seconds")](https://image.slidesharecdn.com/progresqla2-160522154743/85/Try-PostgreSQL-on-linux-6-320.jpg)
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最新版美国约翰霍普金斯大学毕业证（JHU毕业证书）原版定制Taqyea 2025原版约翰霍普金斯大学毕业证书pdf电子版【q薇1954292140】美国毕业证办理JHU约翰霍普金斯大学毕业证书多少钱？【q薇1954292140】海外各大学Diploma版本，因为疫情学校推迟发放证书、证书原件丢失补办、没有正常毕业未能认证学历面临就业提供解决办法。当遭遇挂科、旷课导致无法修满学分，或者直接被学校退学，最后无法毕业拿不到毕业证。此时的你一定手足无措，因为留学一场，没有获得毕业证以及学历证明肯定是无法给自己和父母一个交代的。
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约翰霍普金斯大学成绩单能够体现您的的学习能力，包括约翰霍普金斯大学课程成绩、专业能力、研究能力。（q微1954292140）具体来说，成绩报告单通常包含学生的学习技能与习惯、各科成绩以及老师评语等部分，因此，成绩单不仅是学生学术能力的证明，也是评估学生是否适合某个教育项目的重要依据！
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Prescriptive Process Monitoring Under Uncertainty and Resource Constraints: A...
Prescriptive Process Monitoring Under Uncertainty and Resource Constraints: A...Mahmoud Shoush We introduced Black-Box Prescriptive Process Monitoring (BB-PrPM) – a reinforcement learning approach that learns when, whether, and how to intervene in business processes to boost performance under real-world constraints.
This work is presented at the International Conference on Advanced Information Systems Engineering CAiSE Conference #CAiSE2025
Shifting Focus on AI: How it Can Make a Positive Difference
Shifting Focus on AI: How it Can Make a Positive Difference1508 A/S This morgenbooster will share how to find the positive impact of AI and how to integrate it into your own digital process.
Try PostgreSQL on linux
- 2. sudo apt-get update sudo apt-get install postgresql postgresql-contrib
- 3. sudo -i -u postgres
- 4. CREATE TABLE table_name ( column_name1 col_type (field_length) column_constraints, column_name2 col_type (field_length), column_name3 col_type (field_length) );
- 5. print "Opened database successfully"; CREATE TABLE FLIGHT ( Number INT PRIMARY KEY NOT NULL, Airline CHAR(20) NOT NULL, Weekdays CHAR(10) NOT NULL ); print "Table created FLIGHT"; CREATE TABLE FARE( Code INT PRIMARY KEY NOT NULL, Amount INT NOT NULL, Restrictions CHAR(20) NOT NULL, FAnumber INT NOT NULL, FARES_Number INT NOT NULL, FOREIGN KEY(FAnumber) REFERENCES FLIGHT(Number) ); print "Table created FARE"; CREATE TABLE SEAT( Seat_No INT PRIMARY KEY NOT NULL, Sdate CHAR(20) NOT NULL, RES_Date CHAR(20) NOT NULL, RES_Customer_Name CHAR(20) NOT NULL, RES_Cphone CHAR(10) NOT NULL ); print "Table created SEAT"; conn.commit() conn.close()
- 6. #FLIGHT Number = [] Airline = [] Weekdays = [] def Generate_FLIGHT(): #Generate FLIGHT Airline_Name = ['AirAsia','Nok_Air','ThaiSmile','ThaiAirways','BangkokAirways'] Weekdays_Name = ['Monday','Tuesday','Wednesday','Thursday','Friday','Saturday','Sunday'] i = 90000000; t = time.clock() t1 = time.clock() d = 0; while i< 100000000: Number.append(i); Airline.append(Airline_Name[(i-1)%5]); if( i % 60 == 0): d = d + 1 if( d == 7 ): d = 0 Weekdays.append(Weekdays_Name[d]); if( i % 1000000 == 0): print (i) # print Number[i],Airline[i],Weekdays[i] i = i + 1 print( "Generate FLIGHT success") t1 = time.clock() print (t ,"seconds") print (t1,"seconds")
- 7. select * from flight where airline = nok_air
- 8. select * from flight where weekdays = 'sunday'