To determine information about your database system, its objects, structures, status information, and so on, you have to evaluate the relevant system tables.
A list of database terms and references to the system tables that can provide the information on the terms is provided below. The terms are listed in alphabetical order.
|
Term |
Explanation |
System Table |
C |
Char set (character set) |
MapChar set |
|
|
Character Set |
MapChar set |
|
|
Column |
definition,
domain, default value |
|
|
Column |
definition,
domain, default value |
|
|
Computer |
name |
|
|
Constraint |
NOT NULL
columns |
|
D |
Database instance |
of the current
database session |
|
|
Database parameters |
currently valid |
|
|
Database Procedure |
name and other
information |
|
|
Database session |
your own and all
active |
|
|
Default value |
for a column |
|
|
Default value |
for a column |
|
|
Domain |
name and other
information |
|
|
Domain |
name and other
information |
|
F |
Foreign key (referential constraint) |
name and other
information |
|
I |
Identification |
internal
identification of a table |
|
|
Isolation level |
of the current database session |
|
K |
Keys |
primary key |
|
L |
Lock |
currently requested |
|
|
Lock |
currently requested |
|
|
Log Area |
Utilization |
|
|
Log Queue |
ID and other information |
|
M |
MapChar set |
name and other information |
|
|
Migration (Upgrade) |
log |
|
O |
Operating system |
of the database instance |
|
P |
Parameters |
of a database
procedure |
|
|
Privilege |
of a role |
ROLEPRIVILEGES |
R |
Referential constraint |
name and other
information |
|
|
Release (version) |
database software |
|
|
Result table |
their existence |
|
|
Role |
name and other
information |
|
S |
Schema |
name and other
information |
|
|
Sequence |
current value |
|
|
Server node |
name |
|
|
Session |
your own and all
active |
|
|
SQL mode |
of the current database session |
|
|
Statistics |
time and sample value from the last time UPDATE STATISTICS ran |
|
|
Synonym |
synonyms |
|
T |
Table |
name and other
information |
TABLES |
|
Timeout |
of the current database session |
|
|
Triggers |
name and other information |
|
U |
UNIQUE |
Index |
|
|
Upgrade |
logs |
|
|
User |
defined |
|
|
User |
defined |
|
V |
Version |
database software and operating system |
|
|
View Table |
name and other
information |