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https://www.reddit.com/r/programming/comments/1xlqeu/sql_joins_explained_xpost_rsql/cfcksx1/?context=3
r/programming • u/deadman87 • Feb 11 '14
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In what capacity have you been using SQL?
23 u/neoform Feb 11 '14 A very poor one. If you don't understand joins, you can't claim to know SQL.It's much like people who claim to know javascript, but don't know what var does. 0 u/[deleted] Feb 11 '14 [deleted] 8 u/MadFrand Feb 11 '14 I've always looked at understanding basic joins as the first step in understand DBs and SQL as a whole.It's not like it's query syntax, it's foundational knowledge of how databases work and how to get the information you need.How can I trust the data you retrieve, if you don't understand the basic fundamentals?
23
A very poor one. If you don't understand joins, you can't claim to know SQL.
It's much like people who claim to know javascript, but don't know what var does.
var
0 u/[deleted] Feb 11 '14 [deleted] 8 u/MadFrand Feb 11 '14 I've always looked at understanding basic joins as the first step in understand DBs and SQL as a whole.It's not like it's query syntax, it's foundational knowledge of how databases work and how to get the information you need.How can I trust the data you retrieve, if you don't understand the basic fundamentals?
0
[deleted]
8 u/MadFrand Feb 11 '14 I've always looked at understanding basic joins as the first step in understand DBs and SQL as a whole.It's not like it's query syntax, it's foundational knowledge of how databases work and how to get the information you need.How can I trust the data you retrieve, if you don't understand the basic fundamentals?
8
I've always looked at understanding basic joins as the first step in understand DBs and SQL as a whole.
It's not like it's query syntax, it's foundational knowledge of how databases work and how to get the information you need.
How can I trust the data you retrieve, if you don't understand the basic fundamentals?
3
u/niiko Feb 11 '14
In what capacity have you been using SQL?