 Dmitry Medvedev
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9c84f7b794
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added file with theory BD 'shard'
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2026-07-10 00:26:24 +05:00 |
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Dmitry Medvedev
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f1e9502716
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added files theory bd with indexes and partitions
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2026-07-09 23:38:46 +05:00 |
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Dmitry Medvedev
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6f96ed5510
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added Logic_and_Physics_joins
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2026-07-04 13:47:18 +05:00 |
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Dmitry Medvedev
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e20f0077dc
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added 11ый task in 10.5 Poryadok
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2026-07-03 00:06:47 +05:00 |
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Dmitry Medvedev
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3581c6c741
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added explain and poryadok sql
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2026-06-30 13:54:42 +05:00 |
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Dmitry Medvedev
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03149fb22c
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added dopolnitelnie zadaniya pet project
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2026-06-29 23:25:17 +05:00 |
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Dmitry Medvedev
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74bd8e9d12
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fixed mistakes
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2026-06-29 01:43:27 +05:00 |
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Dmitry Medvedev
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eeca2c2209
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fix mistakes in 11.5 lesson popularity rank
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2026-06-29 01:40:06 +05:00 |
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Dmitry Medvedev
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782f305acd
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fix mistakes with cohort analysis
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2026-06-29 01:29:36 +05:00 |
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Dmitry Medvedev
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080ce3a251
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fix mistakes in pet project effective courses
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2026-06-29 00:52:22 +05:00 |
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Dmitry Medvedev
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007e136953
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fixed code pet project Activity users
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2026-06-29 00:01:36 +05:00 |
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Dmitry Medvedev
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650df961a3
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added optimization of select
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2026-06-28 23:15:55 +05:00 |
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Dmitry Medvedev
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7b7930d136
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added file with blocks
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2026-06-26 01:56:44 +05:00 |
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Dmitry Medvedev
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32041e1233
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added files with transactions and 1 part of pet project (additional tasks)
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2026-06-26 00:55:31 +05:00 |
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Dmitry Medvedev
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0fca2bcd7a
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added Mater VIEW 'conversion_funnel' in Pet Project
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2026-06-24 15:50:06 +05:00 |
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Dmitry Medvedev
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6b22a048fc
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added Mater VIEW for Pet Project 'lesson_popularity_ranking'
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2026-06-22 01:46:08 +05:00 |
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Dmitry Medvedev
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29cbd33b71
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added Mater VIEW for Pet project 'Cohort_analysis'
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2026-06-21 22:21:26 +05:00 |
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Dmitry Medvedev
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94965703a3
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added matherialized view pet project platform summary
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2026-06-20 14:13:21 +05:00 |
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Dmitry Medvedev
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0613f3ee31
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added second part of pet project 'effective courses'
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2026-06-19 15:06:53 +05:00 |
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Dmitry Medvedev
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e8ad05df8b
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added Mat VIEW Activity users for pet project
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2026-06-18 15:04:51 +05:00 |
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Dmitry Medvedev
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2e7aa5cd72
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added dml and dml for pet project
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2026-06-18 15:02:52 +05:00 |
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Dmitry Medvedev
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43cff96cb4
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added file with views rasks
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2026-06-14 21:33:57 +05:00 |
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Dmitry Medvedev
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3044cecf7a
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added window functions sql
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2026-06-12 14:41:23 +05:00 |
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Dmitry Medvedev
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72c9b065b9
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fix mistakes in joins
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2026-06-08 23:52:08 +05:00 |
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Dmitry Medvedev
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bcc5f43d56
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added underSELECT and CTE tasks
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2026-06-07 23:20:00 +05:00 |
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Dmitry Medvedev
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d989ceedf3
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made changes in joins
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2026-06-04 15:05:34 +05:00 |
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Dmitry Medvedev
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fe31e93ad3
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made changes in task 3, added WHERE with IN
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2026-06-04 13:25:41 +05:00 |
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Dmitry Medvedev
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0c089dd1c0
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made changes
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2026-06-04 13:21:19 +05:00 |
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Dmitry Medvedev
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96e93a6ec5
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made changes PRIMARY KEY and FOREIGN KEY
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2026-06-04 13:19:30 +05:00 |
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Dmitry Medvedev
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40f8941933
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made changed in SELECT
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2026-06-04 12:22:58 +05:00 |
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Dmitry Medvedev
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06f296f347
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made changes to the agregations
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2026-06-04 12:15:52 +05:00 |
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Dmitry Medvedev
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d5155bed65
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add tasks with function, string, logic
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2026-05-31 23:21:45 +05:00 |
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Dmitry Medvedev
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204913caa8
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add 8 tasks with agregation sql
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2026-05-28 21:00:11 +05:00 |
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Dmitry Medvedev
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ca6903bde4
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add tasks with union and union all
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2026-05-28 01:36:48 +05:00 |
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Dmitry Medvedev
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6540b576d2
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added 10 tasks with joins
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2026-05-26 01:08:47 +05:00 |
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Dmitry Medvedev
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9082197c80
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add file filtering with 5 tasks
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2026-05-21 00:40:28 +05:00 |
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Dmitry Medvedev
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0335c6eca4
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add Base SQL task practise
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2026-05-20 23:32:08 +05:00 |
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Dmitry Medvedev
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5e62bf4aad
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add DDL DML
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2026-05-20 21:58:16 +05:00 |
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Dmitry Medvedev
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c3a7c2e233
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changed folders and ways of files
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2026-05-11 23:23:29 +05:00 |
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Dmitry Medvedev
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7f26bd6764
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test
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2026-05-11 19:38:19 +05:00 |
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Dmitry Medvedev
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cca3b8d282
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add postgresql script.sql
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2026-05-11 19:01:13 +05:00 |
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