Action keywords:
1.show //View, display
2.use //select(library/table)
3.database/s //libraries/all libraries
4.table/s //table/all tables
5.primary key //Primary key: not repeatable, not nullable
6.unique key //Unique key: not repeatable, can be empty
7.primary key(id,uid) //Joint primary key, two fields form uniqueness
8.foreign key //Foreign key: for example foreign key(id2) references set_test(id)
9.auto_increment //Self-increment (must be the primary key, must be int): auto_increment = xx; auto-increment from xx
10.comment //Comment
11.engine = MyIsam //show create table tablename command to see the type of table. myisam , does not support transactions, InnoDB supports transactions.
12.charset //Character encoding, cmd defaults to gbk, generally uses gbk, and the database is utf8;
13.default //default value
14.delimiter //Set the statement terminator such as delimiter*
Error message keywords:
1.empty: empty, no (data)
2. doesn't exist: does not exist (library name/table name error)
3.syntax: syntax error, look for near;
4.Subquery returns more than 1 row: Subquery results more than one row (insufficient conditions)
5.ambiguous: ambiguous (multiple table fields are repeated, table name. field name)
6.Invalid: Invalid
Action keywords:
1.show //View, display
2.use //select(library/table)
3.database/s //libraries/all libraries
4.table/s //table/all tables
5.primary key //Primary key: not repeatable, not nullable
6.unique key //Unique key: not repeatable, can be empty
7.primary key(id,uid) //Joint primary key, two fields form uniqueness
8.foreign key //Foreign key: for example foreign key(id2) references set_test(id)
9.auto_increment //Self-increment (must be the primary key, must be int): auto_increment = xx; auto-increment from xx
10.comment //Comment
11.engine = MyIsam //show create table tablename command to see the type of table. myisam , does not support transactions, InnoDB supports transactions.
12.charset //Character encoding, cmd defaults to gbk, generally uses gbk, and the database is utf8;
13.default //default value
14.delimiter //Set the statement terminator such as delimiter*
Error message keywords:
1.empty: empty, no (data)
2. doesn't exist: does not exist (library name/table name error)
3.syntax: syntax error, look for near;
4.Subquery returns more than 1 row: Subquery results more than one row (insufficient conditions)
5.ambiguous: ambiguous (multiple table fields are repeated, table name. field name)
6.Invalid: Invalid