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How to return items of a certain column just once when using LEFT JOIN
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10
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87
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January 20, 2022
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How to compare values of two columns in a WHERE clause?
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2
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44
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January 13, 2022
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Not able to alter index in Intermediate Book Store Indexes POSTGRESQL course
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6
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358
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January 6, 2022
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Adding An Age Column with Values Based on Birthdays in Another Column
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42
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1555
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January 1, 2022
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About Error in my code
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3
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75
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December 22, 2021
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Can we also do count(name) instead of count(*)?
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1
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50
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December 21, 2021
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Need help with this exercise
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0
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65
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December 16, 2021
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WITH Clause vs Subqueries (And when to use each)
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2
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76
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December 16, 2021
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String contains contraction
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1
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81
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November 26, 2021
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Select substring up to first \r\n
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1
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83
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November 23, 2021
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PostgreSQL Intermediate Book Store Indexes project: Query not running
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6
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157
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November 17, 2021
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The Best Of Baseball Awards: unexpected query result
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3
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269
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November 17, 2021
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Comparison Operator?
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1
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191
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October 25, 2021
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SQL Challenge Project
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2
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301
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October 19, 2021
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SQL datetime query
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3
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214
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October 14, 2021
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Build A Menu For Bytes Of China
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4
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317
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October 11, 2021
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What is the difference between PostgreSQL and SQL server? Could I do the Codecademy exercises on both?
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2
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158
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September 8, 2021
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Creating month intervals to calculate total payment on a monthly basis starting from the first date through the last date of payment
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2
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145
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September 1, 2021
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Can you see the error!? Marketing Attribution CoolTShirts Q6 SQL
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3
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231
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August 24, 2021
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How to use wild cards with numbers
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7
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654
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August 14, 2021
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Gold Medal Metrics Project: Using JavaScript with MySQL
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0
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231
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August 6, 2021
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Analyze Data with SQL: Davie's Burgers Subway Ad's Challenge
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4
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283
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July 30, 2021
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I need help understanding this sentence
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1
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172
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June 19, 2021
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Speed up my query
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1
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193
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July 26, 2021
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How to find a made-up phrase? From Codeacademy -- Analyze Data with SQL -- Quries extra project: Davie's Burgers Subway Ad
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1
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338
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May 22, 2021
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SQL Join Condition
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1
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192
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May 20, 2021
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SQL Count without Grouping
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1
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487
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May 14, 2021
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Error Code: 1822. Failed to add the foreign key constraint. Missing index for constraint 'employees_ibfk_1' in the referenced table 'departments' 0.000 sec
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2
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3465
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May 11, 2021
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What should I used as my foregin key in SQL
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2
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284
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June 8, 2021
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Analyze Data with SQL - Calculating Churn Rates - Q5 Query Check
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2
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280
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March 31, 2021
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