Transcript
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RailsDBMySQLPostgreSQL
2015/04/17Riding Rails(Rails)
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https://github.com/mitoma
on RDBMS
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RailsDB
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RailsMySQLPostgreSQL
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Rails
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(Salesforce) (Amazon Web Service)
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RailsDB
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RailsDB
DB1
DB
DB
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MySQLPostgreSQL
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RailsDB
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MySQLPostgreSQL
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DDL, DMLPostgreSQL
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DDL, DMLPostgreSQL
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PgSanity
MySQL PostgreSQL tinyint(1) boolean true/false
varchar citext
auto_increment serial setvalDDL
blob bytea line.gsub!(/0x([0-9,A-F]+)/, "decode('\\1','hex')")
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MySQLPostgreSQL
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MySQLPostgreSQL
grep
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ActiveRecordMD5
attributeMD5
diActiveRecord
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MySQLPostgreSQL
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MySQLPostgreSQL
case insensitive order bynull group by Etc
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PostgreSQL citext
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MySQLPostgreSQL
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MySQLPostgreSQL
ifActiveRecord
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RailsDB
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PostgreSQLDBDB
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DBDB
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5
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RailsDB
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RDBMS
OR Mapper
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1~1000
http://www.techscore.com/blog/2014/12/05/rails_db_migration/