Time Travel Explained | Codebasics

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Contents

1.1: Big Data and Distributed Computing
1.2: Apache Spark and Hadoop
1.3: What is Databricks?
1.4: Databricks Setup

2.1: Basic Operations
2.2: Reading Data from CSV
2.3: Handle Missing Values
2.4: SQL in pyspark
2.5: Joins

3.1: Reading Spark Plans with explain()
3.2: Spark Architecture
3.3: Transformations vs Actions and Lazy Evaluation
3.4: Narrows vs Wide Transformations
3.5: Partitions & Parallelism: Repartition
3.6: Partitions & Parallelism: Coalesce
3.7: Lokis advice to Peter on using AI tools
3.8: Catalyst Optimizer, Predicate Pushdown, Column Pruning
3.9: Joins at Scale: Broadcast, Shuffle Hash and Hints
3.10: Data Skew and Mitigation Techniques
3.11: Adaptive Query Execution (AQE)
3.12: RDD, Dataframes and Datasets
3.13: Managed vs External Tables
3.14: Unity Catalog: Governance & Access Control
3.15: Understanding ACID
3.16: Time Travel Explained
3.17: What is Delta Lake and Delta Format

4.1: Final Quiz

Instructor

Dhaval Patel

Dhaval Patel

Data Entrepreneur | YouTuber | Ex - Bloomberg, Nvidia

I have 17 years of experience in Programming and Data Science working for big tech companies like NVIDIA and Bloomberg. I also run a famous YouTube channel called Codebasics where I pursue my passion for teaching. Codebasics is one of the top channels on YouTube when it comes to data science, machine learning, data structures, etc. I firmly believe that “Anyone can code” and I use analogies, simple explanations, and step-by-step storytelling to explain difficult concepts in such a way that even a high school student can understand them easily.

Time Travel Explained

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Afghanistan +93 Åland Islands +358 Albania +355 Algeria +213 American Samoa +1 Andorra +376 Angola +244 Anguilla +1 Antarctica +672 Antigua and Barbuda +1 Argentina +54 Armenia +374 Aruba +297 Australia +61 Austria +43 Azerbaijan +994 Bahamas +1 Bahrain +973 Bangladesh +880 Barbados +1 Belarus +375 Belgium +32 Belize +501 Benin +229 Bermuda +1 Bhutan +975 Bolivia, Plurinational State of +591 Bonaire, Sint Eustatius and Saba +599 Bosnia and Herzegovina +387 Botswana +267 Bouvet Island +47 Brazil +55 British Indian Ocean Territory +246 Brunei Darussalam +673 Bulgaria +359 Burkina Faso +226 Burundi +257 Cambodia +855 Cameroon +237 Canada +1 Cape Verde +238 Cayman Islands +1 Central African Republic +236 Chad +235 Chile +56 China +86 Christmas Island +61 Cocos (Keeling) Islands +61 Colombia +57 Comoros +269 Congo +242 Congo, the Democratic Republic of the +243 Cook Islands +682 Costa Rica +506 Côte d'Ivoire +225 Croatia +385 Cuba +53 Curaçao +599 Cyprus +357 Czech Republic +420 Denmark +45 Djibouti +253 Dominica +1 Dominican Republic +1 Ecuador +593 Egypt +20 El Salvador +503 Equatorial Guinea +240 Eritrea +291 Estonia +372 Ethiopia +251 Falkland Islands (Malvinas) +500 Faroe Islands +298 Fiji +679 Finland +358 France +33 French Guiana +594 French Polynesia +689 French Southern Territories +33 Gabon +241 Gambia +220 Georgia +995 Germany +49 Ghana +233 Gibraltar +350 Greece +30 Greenland +299 Grenada +1 Guadeloupe +590 Guam +1 Guatemala +502 Guernsey +44 Guinea +224 Guinea-Bissau +245 Guyana +592 Haiti +509 Heard Island and McDonald Islands +61 Holy See (Vatican City State) +39 Honduras +504 Hong Kong +852 Hungary +36 Iceland +354 India +91 Indonesia +62 Iran, Islamic Republic of +98 Iraq +964 Ireland +353 Isle of Man +44 Israel +972 Italy +39 Jamaica +1 Japan +81 Jersey +44 Jordan +962 Kazakhstan +7 Kenya +254 Kiribati +686 Korea, Democratic People's Republic of +850 Korea, Republic of +82 Kuwait +965 Kyrgyzstan +996 Lao People's Democratic Republic +856 Latvia +371 Lebanon +961 Lesotho +266 Liberia +231 Libya +218 Liechtenstein +423 Lithuania +370 Luxembourg +352 Macao +853 Macedonia, the former Yugoslav Republic of +389 Madagascar +261 Malawi +265 Malaysia +60 Maldives +960 Mali +223 Malta +356 Marshall Islands +692 Martinique +596 Mauritania +222 Mauritius +230 Mayotte +262 Mexico +52 Micronesia, Federated States of +691 Moldova, Republic of +373 Monaco +377 Mongolia +976 Montenegro +382 Montserrat +1 Morocco +212 Mozambique +258 Myanmar +95 Namibia +264 Nauru +674 Nepal +977 Netherlands +31 New Caledonia +687 New Zealand +64 Nicaragua +505 Niger +227 Nigeria +234 Niue +683 Norfolk Island +672 Northern Mariana Islands +1 Norway +47 Oman +968 Pakistan +92 Palau +680 Palestinian Territory, Occupied +970 Panama +507 Papua New Guinea +675 Paraguay +595 Peru +51 Philippines +63 Pitcairn +649 Poland +48 Portugal +351 Puerto Rico +1 Qatar +974 Réunion +262 Romania +40 Russian Federation +7 Rwanda +250 Saint Barthélemy +590 Saint Helena, Ascension and Tristan da Cunha +290 Saint Kitts and Nevis +1 Saint Lucia +1 Saint Martin (French part) +590 Saint Pierre and Miquelon +508 Saint Vincent and the Grenadines +1 Samoa +685 San Marino +378 Sao Tome and Principe +239 Saudi Arabia +966 Senegal +221 Serbia +381 Seychelles +248 Sierra Leone +232 Singapore +65 Sint Maarten (Dutch part) +721 Slovakia +421 Slovenia +386 Solomon Islands +677 Somalia +252 South Africa +27 South Georgia and the South Sandwich Islands +44 South Sudan +211 Spain +34 Sri Lanka +94 Sudan +249 Suriname +597 Svalbard and Jan Mayen +47 Swaziland +268 Sweden +46 Switzerland +41 Syrian Arab Republic +963 Taiwan, Province of China +886 Tajikistan +992 Tanzania, United Republic of +255 Thailand +66 Timor-Leste +670 Togo +228 Tokelau +690 Tonga +676 Trinidad and Tobago +1 Tunisia +216 Turkey +90 Turkmenistan +993 Turks and Caicos Islands +1 Tuvalu +688 Uganda +256 Ukraine +380 United Arab Emirates +971 United Kingdom +44 United States +1 United States Minor Outlying Islands +1 Uruguay +598 Uzbekistan +998 Vanuatu +678 Venezuela, Bolivarian Republic of +58 Viet Nam +84 Virgin Islands, British +1 Virgin Islands, U.S. +1 Wallis and Futuna +681 Western Sahara +212 Yemen +967 Zambia +260 Zimbabwe +263

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