sql

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How many disk pages are read by a query in Postgres?
user_18988020
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2
2
571
query-planner postgresql optimization sql
Issue with joins — would someone please explain to me what I am doing wrong?
user_147989060
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3
1
71
sql
What happens when a comma is not placed following an existing field name in SQL
Admin1
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3
255
select sql
How to take average of two columns row by row in SQL?
user_110989080
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2
5
906
aggregate-functions average sql
Insert into (with select statement) and additional ON DUPLICATE KEY UPDATE based on the select statement
user_33581020
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2
1
45
sql-insert subquery sql-update mysql sql
Why is mySQL Trigger not saving?
user_90835890
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3
2
322
sql-insert count triggers mysql sql
Getting error in mySQL for references and foreign key
user_128037150
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2
1
938
create-table foreign-keys mysql sql
Finding multiple consecutive dates (datetime) in Ruby on Rails / Postgresql
user_19327230
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2
2
250
gaps-and-islands datetime postgresql ruby-on-rails sql
PHP Prepared MySQL UPDATE Statement with Variable inside of a string
user_22038220
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3
1
56
sql-insert sql-update mysql sql php
Find all values in column B that correspond to particular values in column A ORACLE SQL
user_148104790
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2
2
41
select oracle sql
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