Cleanup MySQL
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@ -5,6 +5,7 @@ names:
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- Apps
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- Apps
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- CLI
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- CLI
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- CSS
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- CSS
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- Databases
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- Devops
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- Devops
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- Elixir
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- Elixir
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- Git
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- Git
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11
mysql.md
11
mysql.md
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@ -1,13 +1,14 @@
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---
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---
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title: MySql
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title: MySql
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category: Databases
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---
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---
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### Create / Delete Database
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### Create / Delete Database
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CREATE DATABASE dbNameYouWant
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CREATE DATABASE dbNameYouWant
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CREATE DATABASE dbNameYouWant CHARACTER SET utf8
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CREATE DATABASE dbNameYouWant CHARACTER SET utf8
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DROP DATABASE dbNameYouWant
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DROP DATABASE dbNameYouWant
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ALTER DATABASE dbNameYouWant CHARACTER SET utf8
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ALTER DATABASE dbNameYouWant CHARACTER SET utf8
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### Backup Database to SQL File
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### Backup Database to SQL File
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mysqldump -u Username -p dbNameYouWant > databasename_backup.sql
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mysqldump -u Username -p dbNameYouWant > databasename_backup.sql
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### Restore from backup SQL File
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### Restore from backup SQL File
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@ -24,7 +25,7 @@ title: MySql
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SHOW PROCESSLIST
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SHOW PROCESSLIST
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KILL process_number
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KILL process_number
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### Select
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### Select
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SELECT * FROM table
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SELECT * FROM table
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SELECT * FROM table1, table2, ...
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SELECT * FROM table1, table2, ...
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SELECT field1, field2, ... FROM table1, table2, ...
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SELECT field1, field2, ... FROM table1, table2, ...
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@ -37,12 +38,12 @@ title: MySql
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SELECT DISTINCT field1 FROM ...
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SELECT DISTINCT field1 FROM ...
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SELECT DISTINCT field1, field2 FROM ...
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SELECT DISTINCT field1, field2 FROM ...
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### Select - Join
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### Select - Join
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SELECT ... FROM t1 JOIN t2 ON t1.id1 = t2.id2 WHERE condition
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SELECT ... FROM t1 JOIN t2 ON t1.id1 = t2.id2 WHERE condition
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SELECT ... FROM t1 LEFT JOIN t2 ON t1.id1 = t2.id2 WHERE condition
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SELECT ... FROM t1 LEFT JOIN t2 ON t1.id1 = t2.id2 WHERE condition
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SELECT ... FROM t1 JOIN (t2 JOIN t3 ON ...) ON ...
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SELECT ... FROM t1 JOIN (t2 JOIN t3 ON ...) ON ...
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### Conditions
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### Conditions
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field1 = value1
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field1 = value1
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field1 <> value1
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field1 <> value1
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field1 LIKE 'value _ %'
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field1 LIKE 'value _ %'
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