select
user
,host from mysql.
user
select schema_name dbname,default_character_set_name code from information_schema.schemata
order
by schema_name
select table_name as tablename,table_schema owner,table_rows num_rows,check_time last_analyzed
from information_schema.
tables
where table_schema =
'資料庫名'
and table_type=
'base table'
select table_schema,table_name,view_definition from information_schema.views
where table_schema=
'資料庫名'
select trigger_schema,trigger_name,action_timing,event_manipulation,
event_object_table,action_orientation,action_statement
from information_schema.triggers where trigger_schema=
'資料庫名'
select table_schema,table_name,column_name,data_type,is_nullable,column_type,column_key
from information_schema.
columns
where table_schema =
'資料庫名'
and table_name=
'表名'
select a.column_name,a.constraint_name
from information_schema.key_column_usage a,information_schema.table_constraints b
where a.table_schema=b.table_schema and a.table_name=b.table_name
and a.constraint_name=b.constraint_name and b.constraint_type =
'primary key'
and a.table_schema=
'資料庫名'
and a.table_name=
'表名'
select a.constraint_name,
a.table_schema,a.table_name,a.column_name,
a.referenced_table_schema,a.referenced_table_name,a.referenced_column_name
from information_schema.key_column_usage a,information_schema.table_constraints b
where a.table_schema=b.table_schema and a.table_name=b.table_name
and a.constraint_name=b.constraint_name and b.constraint_type =
'foreign key'
and a.table_schema=
'資料庫名'
and a.table_name=
'表名'
show
index
from
`資料庫名`
.`表名`
where key_name notin(
select a.constraint_name
from information_schema.key_column_usage a,information_schema.table_constraints b
where a.table_schema=b.table_schema and a.table_name=b.table_name
and a.constraint_name=b.constraint_name
and a.table_schema=
'資料庫名'
and a.table_name=
'表名'
)
select a.constraint_name,a.column_name
from information_schema.key_column_usage a,information_schema.table_constraints b
where a.table_schema=b.table_schema and a.table_name=b.table_name
and a.constraint_name=b.constraint_name and b.constraint_type =
'unique'
and a.table_schema=
'資料庫名'
and a.table_name=
'表名'
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