diff --git a/mysql.md b/mysql.md
index eb9d640f5..2f369e01b 100644
--- a/mysql.md
+++ b/mysql.md
@@ -1,163 +1,266 @@
 ---
-title: MySql
+title: MySQL
+updated: 2018-12-25
+layout: 2017/sheet
 category: Databases
 ---
+
 ### Create / Delete Database
-    CREATE DATABASE dbNameYouWant
-    CREATE DATABASE dbNameYouWant CHARACTER SET utf8
-    DROP DATABASE dbNameYouWant
-    ALTER DATABASE dbNameYouWant CHARACTER SET utf8
-    
+
+```sql
+CREATE DATABASE dbNameYouWant
+CREATE DATABASE dbNameYouWant CHARACTER SET utf8
+DROP DATABASE dbNameYouWant
+ALTER DATABASE dbNameYouWant CHARACTER SET utf8
+```
+
 ### Backup Database to SQL File
-    mysqldump -u Username -p dbNameYouWant > databasename_backup.sql
-    
+
+```bash
+mysqldump -u Username -p dbNameYouWant > databasename_backup.sql
+```
+
 ### Restore from backup SQL File
-    mysql - u Username -p dbNameYouWant < databasename_backup.sql
-    
+
+```bash
+mysql - u Username -p dbNameYouWant < databasename_backup.sql
+```
+
 ### Repair Tables After Unclean Shutdown
-    mysqlcheck --all-databases
-    mysqlcheck --all-databases --fast
+
+```bash
+mysqlcheck --all-databases
+mysqlcheck --all-databases --fast
+```
+
 ### Browsing
-    SHOW DATABASES
-    SHOW TABLES
-    SHOW FIELDS FROM table / DESCRIBE table
-    SHOW CREATE TABLE table
-    SHOW PROCESSLIST
-    KILL process_number
-    
+
+```sql
+SHOW DATABASES
+SHOW TABLES
+SHOW FIELDS FROM table / DESCRIBE table
+SHOW CREATE TABLE table
+SHOW PROCESSLIST
+KILL process_number
+```
+
 ### Select
-    SELECT * FROM table
-    SELECT * FROM table1, table2, ...
-    SELECT field1, field2, ... FROM table1, table2, ...
-    SELECT ... FROM ... WHERE condition
-    SELECT ... FROM ... WHERE condition GROUPBY field
-    SELECT ... FROM ... WHERE condition GROUPBY field HAVING condition2
-    SELECT ... FROM ... WHERE condition ORDER BY field1, field2
-    SELECT ... FROM ... WHERE condition ORDER BY field1, field2 DESC
-    SELECT ... FROM ... WHERE condition LIMIT 10
-    SELECT DISTINCT field1 FROM ...
-    SELECT DISTINCT field1, field2 FROM ...
-    
+
+```sql
+SELECT * FROM table
+SELECT * FROM table1, table2, ...
+SELECT field1, field2, ... FROM table1, table2, ...
+SELECT ... FROM ... WHERE condition
+SELECT ... FROM ... WHERE condition GROUPBY field
+SELECT ... FROM ... WHERE condition GROUPBY field HAVING condition2
+SELECT ... FROM ... WHERE condition ORDER BY field1, field2
+SELECT ... FROM ... WHERE condition ORDER BY field1, field2 DESC
+SELECT ... FROM ... WHERE condition LIMIT 10
+SELECT DISTINCT field1 FROM ...
+SELECT DISTINCT field1, field2 FROM ...
+```
+
 ### Select - Join
-    SELECT ... FROM t1 JOIN t2 ON t1.id1 = t2.id2 WHERE condition
-    SELECT ... FROM t1 LEFT JOIN t2 ON t1.id1 = t2.id2 WHERE condition
-    SELECT ... FROM t1 JOIN (t2 JOIN t3 ON ...) ON ...
+
+```sql
+SELECT ... FROM t1 JOIN t2 ON t1.id1 = t2.id2 WHERE condition
+SELECT ... FROM t1 LEFT JOIN t2 ON t1.id1 = t2.id2 WHERE condition
+SELECT ... FROM t1 JOIN (t2 JOIN t3 ON ...) ON ...
+```
 
 ### Conditions
-    field1 = value1
-    field1 <> value1
-    field1 LIKE 'value _ %'
-    field1 IS NULL
-    field1 IS NOT NULL
-    field1 IS IN (value1, value2)
-    field1 IS NOT IN (value1, value2)
-    condition1 AND condition2
-    condition1 OR condition2
-    
-### Insert    
-    INSERT INTO table1 (field1, field2, ...) VALUES (value1, value2, ...)
-    
+
+```sql
+field1 = value1
+field1 <> value1
+field1 LIKE 'value _ %'
+field1 IS NULL
+field1 IS NOT NULL
+field1 IS IN (value1, value2)
+field1 IS NOT IN (value1, value2)
+condition1 AND condition2
+condition1 OR condition2
+```
+
+### Insert
+
+```sql
+INSERT INTO table1 (field1, field2, ...) VALUES (value1, value2, ...)
+```
+
 ### Delete
-    DELETE FROM table1 / TRUNCATE table1
-    DELETE FROM table1 WHERE condition
-    DELETE FROM table1, table2 FROM table1, table2 WHERE table1.id1 =
-    table2.id2 AND condition
-    
+
+```sql
+DELETE FROM table1 / TRUNCATE table1
+DELETE FROM table1 WHERE condition
+DELETE FROM table1, table2 FROM table1, table2 WHERE table1.id1 =
+  table2.id2 AND condition
+```
+
 ### Update
-    
-    UPDATE table1 SET field1=new_value1 WHERE condition
-    UPDATE table1, table2 SET field1=new_value1, field2=new_value2, ... WHERE
-    table1.id1 = table2.id2 AND condition
-    
+
+```sql
+UPDATE table1 SET field1=new_value1 WHERE condition
+UPDATE table1, table2 SET field1=new_value1, field2=new_value2, ... WHERE
+  table1.id1 = table2.id2 AND condition
+```
+
 ### Create / Delete / Modify Table
-    
-    *Create*
-    CREATE TABLE table (field1 type1, field2 type2, ...)
-    CREATE TABLE table (field1 type1, field2 type2, ..., INDEX (field))
-    CREATE TABLE table (field1 type1, field2 type2, ..., PRIMARY KEY (field1))
-    CREATE TABLE table (field1 type1, field2 type2, ..., PRIMARY KEY (field1,
-    field2))
-        
-    CREATE TABLE table1 (fk_field1 type1, field2 type2, ...,
-      FOREIGN KEY (fk_field1) REFERENCES table2 (t2_fieldA))
-        [ON UPDATE|ON DELETE] [CASCADE|SET NULL]
-      
-    CREATE TABLE table1 (fk_field1 type1, fk_field2 type2, ...,
-     FOREIGN KEY (fk_field1, fk_field2) REFERENCES table2 (t2_fieldA, t2_fieldB))
-      
-    CREATE TABLE table IF NOT EXISTS (...)
-      
-    CREATE TEMPORARY TABLE table (...)
-      
-    *Drop*
-    DROP TABLE table
-    DROP TABLE IF EXISTS table
-    DROP TABLE table1, table2, ...
-      
-    *Alter*
-    ALTER TABLE table MODIFY field1 type1
-    ALTER TABLE table MODIFY field1 type1 NOT NULL ...
-    ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1
-    ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 NOT NULL ...
-    ALTER TABLE table ALTER field1 SET DEFAULT ...
-    ALTER TABLE table ALTER field1 DROP DEFAULT
-    ALTER TABLE table ADD new_name_field1 type1
-    ALTER TABLE table ADD new_name_field1 type1 FIRST
-    ALTER TABLE table ADD new_name_field1 type1 AFTER another_field
-    ALTER TABLE table DROP field1
-    ALTER TABLE table ADD INDEX (field);
-      
-    *Change field order*
-    ALTER TABLE table MODIFY field1 type1 FIRST
-    ALTER TABLE table MODIFY field1 type1 AFTER another_field
-    ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 FIRST
-    ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 AFTER
-    another_field
-    
-### Keys  
-    CREATE TABLE table (..., PRIMARY KEY (field1, field2))
-    CREATE TABLE table (..., FOREIGN KEY (field1, field2) REFERENCES table2
-    (t2_field1, t2_field2))
-    
-    
+
+#### Create
+
+```sql
+CREATE TABLE table (field1 type1, field2 type2, ...)
+CREATE TABLE table (field1 type1, field2 type2, ..., INDEX (field))
+CREATE TABLE table (field1 type1, field2 type2, ..., PRIMARY KEY (field1))
+CREATE TABLE table (field1 type1, field2 type2, ..., PRIMARY KEY (field1,
+field2))
+```
+
+```sql
+CREATE TABLE table1 (fk_field1 type1, field2 type2, ...,
+  FOREIGN KEY (fk_field1) REFERENCES table2 (t2_fieldA))
+    [ON UPDATE|ON DELETE] [CASCADE|SET NULL]
+```
+
+```sql
+CREATE TABLE table1 (fk_field1 type1, fk_field2 type2, ...,
+ FOREIGN KEY (fk_field1, fk_field2) REFERENCES table2 (t2_fieldA, t2_fieldB))
+```
+
+```sql
+CREATE TABLE table IF NOT EXISTS (...)
+```
+
+```sql
+CREATE TEMPORARY TABLE table (...)
+```
+
+#### Drop
+
+```sql
+DROP TABLE table
+DROP TABLE IF EXISTS table
+DROP TABLE table1, table2, ...
+```
+
+#### Alter
+
+```sql
+ALTER TABLE table MODIFY field1 type1
+ALTER TABLE table MODIFY field1 type1 NOT NULL ...
+ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1
+ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 NOT NULL ...
+ALTER TABLE table ALTER field1 SET DEFAULT ...
+ALTER TABLE table ALTER field1 DROP DEFAULT
+ALTER TABLE table ADD new_name_field1 type1
+ALTER TABLE table ADD new_name_field1 type1 FIRST
+ALTER TABLE table ADD new_name_field1 type1 AFTER another_field
+ALTER TABLE table DROP field1
+ALTER TABLE table ADD INDEX (field);
+```
+
+#### Change field order
+
+```sql
+ALTER TABLE table MODIFY field1 type1 FIRST
+ALTER TABLE table MODIFY field1 type1 AFTER another_field
+ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 FIRST
+ALTER TABLE table CHANGE old_name_field1 new_name_field1 type1 AFTER
+  another_field
+```
+
+### Keys
+
+```sql
+CREATE TABLE table (..., PRIMARY KEY (field1, field2))
+CREATE TABLE table (..., FOREIGN KEY (field1, field2) REFERENCES table2
+(t2_field1, t2_field2))
+```
+
 ### Users and Privileges
-    GRANT ALL PRIVILEGES ON base.* TO 'user'@'localhost' IDENTIFIED BY 'password';
-    GRANT SELECT, INSERT, DELETE ON base.* TO 'user'@'localhost' IDENTIFIED BY 'password';
-    REVOKE ALL PRIVILEGES ON base.* FROM 'user'@'host'; -- one permission only
-    REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'user'@'host'; -- all permissions
-      
-    SET PASSWORD = PASSWORD('new_pass')
-    SET PASSWORD FOR 'user'@'host' = PASSWORD('new_pass')
-    SET PASSWORD = OLD_PASSWORD('new_pass')
-      
-    DROP USER 'user'@'host'
-    host ‘%’ indicates any host.
-    
-    
+
+```sql
+GRANT ALL PRIVILEGES ON base.* TO 'user'@'localhost' IDENTIFIED BY 'password';
+GRANT SELECT, INSERT, DELETE ON base.* TO 'user'@'localhost' IDENTIFIED BY 'password';
+REVOKE ALL PRIVILEGES ON base.* FROM 'user'@'host'; -- one permission only
+REVOKE ALL PRIVILEGES, GRANT OPTION FROM 'user'@'host'; -- all permissions
+```
+
+```sql
+SET PASSWORD = PASSWORD('new_pass')
+SET PASSWORD FOR 'user'@'host' = PASSWORD('new_pass')
+SET PASSWORD = OLD_PASSWORD('new_pass')
+```
+
+```sql
+DROP USER 'user'@'host'
+```
+
+Host ‘%’ indicates any host.
+
 ### Main Data Types
-     TINYINT (1o: -217+128) SMALLINT (2o: +-65 000)
-     MEDIUMINT (3o: +-16 000 000) INT (4o: +- 2 000 000 000)
-     BIGINT (8o: +-9.10^18)
-     
-     Precise interval: -(2^(8*N-1)) -> (2^8*N)-1
-     /!\ INT(2) = "2 digits displayed" -- NOT "number with 2 digits max"
-      
-     FLOAT(M,D) DOUBLE(M,D) FLOAT(D=0->53)
-     /!\ 8,3 -> 12345,678 -- NOT 12345678,123!
-      
-     TIME (HH:MM) YEAR (AAAA) DATE (AAAA-MM-JJ) DATETIME (AAAA-MM-JJ HH:MM; années 1000->9999)
-     TIMESTAMP (like DATETIME, but 1970->2038, compatible with Unix)
-     
-     VARCHAR (single-line; explicit size) TEXT (multi-lines; max size=65535) BLOB (binary; max size=65535)
-     Variants for TEXT&BLOB: TINY (max=255) MEDIUM (max=~16000) LONG (max=4Go)
-     Ex: VARCHAR(32), TINYTEXT, LONGBLOB, MEDIUMTEXT
-     
-     ENUM ('value1', 'value2', ...) -- (default NULL, or '' if NOT NULL)
-    
+
+```sql
+TINYINT (1o: -217+128)
+SMALLINT (2o: +-65 000)
+MEDIUMINT (3o: +-16 000 000)
+INT (4o: +- 2 000 000 000)
+BIGINT (8o: +-9.10^18)
+```
+
+```sql
+Precise interval: -(2^(8*N-1)) -> (2^8*N)-1
+```
+
+⚠ INT(2) = "2 digits displayed" -- NOT "number with 2 digits max"
+
+```sql
+FLOAT(M,D)
+DOUBLE(M,D)
+FLOAT(D=0->53)
+```
+
+⚠ 8,3 -> 12345,678 -- NOT 12345678,123!
+
+```sql
+TIME (HH:MM)
+YEAR (AAAA)
+DATE (AAAA-MM-JJ)
+DATETIME (AAAA-MM-JJ HH:MM; années 1000->9999)
+TIMESTAMP (like DATETIME, but 1970->2038, compatible with Unix)
+```
+
+```sql
+VARCHAR (single-line; explicit size)
+TEXT (multi-lines; max size=65535)
+BLOB (binary; max size=65535)
+```
+
+Variants for TEXT&BLOB: `TINY` (max=255), `MEDIUM` (max=~16000), and `LONG` (max=4Go). Ex: `VARCHAR(32)`, `TINYTEXT`, `LONGBLOB`, `MEDIUMTEXT`
+
+```sql
+ENUM ('value1', 'value2', ...) -- (default NULL, or '' if NOT NULL)
+```
+
 ### Reset Root Password
-    $ /etc/init.d/mysql stop
-    $ mysqld_safe --skip-grant-tables
-    $ mysql # on another terminal
-    mysql> UPDATE mysql.user SET password=PASSWORD('new_pass') WHERE user='root';
-    ## Switch back to the mysqld_safe terminal and kill the process using Control + \
-    $ /etc/init.d/mysql start</code>
+
+```bash
+$ /etc/init.d/mysql stop
+```
+
+```bash
+$ mysqld_safe --skip-grant-tables
+```
+
+```bash
+$ mysql # on another terminal
+mysql> UPDATE mysql.user SET password=PASSWORD('new_pass') WHERE user='root';
+```
+
+```bash
+## Switch back to the mysqld_safe terminal and kill the process using Control + \
+$ /etc/init.d/mysql start
+```
+
+Your commands may vary depending on your OS.