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 |
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B |
User |
defined |
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|
Operating System |
of the database instance |
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C |
Char set (character set) |
MapChar set |
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|
Column |
definition, domain, default value |
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|
Constraint |
NOT NULL columns |
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D |
Database instance |
of the current database session |
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|
Database parameters |
currently valid |
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|
Database procedure |
name and other information |
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|
Database session |
your own and all active |
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|
Default value |
for a column |
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|
Domain |
name and other information |
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E |
Result table |
Existence |
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F |
Foreign key (referential constraint) |
name and other information |
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I |
Identification |
internal identification of a table |
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|
Isolation level |
of the current database session |
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L |
Lock |
currently requested |
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|
Log Area |
Utilization |
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|
Log Queue |
ID and other information |
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M |
MapChar set |
name and other information |
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|
Migration (Upgrade) |
log |
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P |
Parameter |
of a database procedure |
|||
|
Privilege |
|
ROLEPRIVILEGES |
|
|
R |
Computer |
Name |
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|
Referential constraint |
name and other information |
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|
Release (version) |
database software |
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|
Role |
name and other information |
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S |
Schema |
name and other information |
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|
Key |
primary key |
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|
Sequence |
current value |
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|
Server node |
name |
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|
Session |
your own and all active |
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|
Column |
definition, domain, default value |
|||
|
Lock |
currently requested |
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|
SQL Mode |
of the current database session |
|||
|
Statistics |
time and sample value from the last time UPDATE STATISTICS ran |
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|
Synonym |
synonyms |
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T |
Table |
name and other information |
TABLES |
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|
Timeout |
of the current database session |
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|
Triggers |
name and other information |
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U |
UNIQUE |
index |
|||
|
Upgrade |
logs |
|||
|
User |
defined |
|||
V |
Version |
database software and operating system |
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|
View table |
name and other information |
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|
Proposed value |
for a column |
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W |
Domains |
name and other information |
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Z |
Character set |
MapChar set |
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