What is the reason not to use select *?

sql
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Is there any rule of thumb to construct SQL query from a human-readable description?

sqldatabaserelational-databaseheuristicshuman-readable
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Finding duplicate values in a SQL table

sqlduplicates
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SQL JOIN - WHERE clause vs. ON clause

sqljoinwhere-clauseon-clause
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How do I (or can I) SELECT DISTINCT on multiple columns?

sqlpostgresqlduplicatesdistinctsql-update
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