Displays detailed information about each IQ dbspace.
DBA authority required. Users without DBA authority must be granted EXECUTE permission to run the stored procedure.
You can use the information from sp_iqdbspace to determine whether data must be moved, and for data that has been moved, whether the old versions have been deallocated. sp_iqdbspace displays this information:
Column name |
Description |
|---|---|
DBSpaceName |
Name of the dbspace as specified in the CREATE DBSPACE statement. Dbspace names are always case-insensitive, regardless of the CREATE DATABASE...CASE IGNORE or CASE RESPECT specification. |
DBSpaceType |
Type of the dbspace (MAIN, SHARED_TEMP, or TEMPORARY). |
Writable |
T (writable) or F (not writable). |
Online |
T (online) or F (offline). |
Usage |
Percent of dbspace currently in use by all files in the dbspace. |
TotalSize |
Total size of all files in the dbspace in the units B (bytes), K (kilobytes), M (megabytes), G (gigabytes), T (terabytes), or P (petabytes). |
Reserve |
Total reserved space that can be added to all files in the dbspace. |
NumFiles |
Number of files in the dbspace. |
NumRWFiles |
Number of read/write files in the dbspace. |
Stripingon |
T (On) or F (Off). |
StripeSize |
Amount of data written to the dbspace before moving to the next dbspace, if disk striping is on. |
BlkTypes |
Space used by both user data and internal system structures. |
OkToDrop |
‘Y’ indicates the dbspace can be dropped; otherwise ‘N’. |
Values of the BlkTypes block type identifiers:
Identifier |
Block type |
|---|---|
A |
Active Version |
B |
Backup Structures |
C |
Checkpoint Log |
D |
Database Identity |
F |
Free list |
G |
Global Free list Manager |
H |
Header Blocks of the free list |
I |
Index advice storage |
M |
Multiplex CM* |
O |
Old Version |
T |
Table use |
U |
Index use |
N |
Column use |
X |
Drop at checkpoint |
*The multiplex commit identity block (actually 128 blocks) exists in all IQ databases, even though it is not used by simplex databases.
For information on multiplex capability, see Using Sybase IQ Multiplex > Multiplex Reference > System Procedures > sp_iqdbspace Procedure.
sp_iqdbspace;
The following example shows objects in the iqdemo database to better illustrate output. Note that iqdemo includes a sample user dbspace named iq_main that may not be present in your own databases.
DBSpaceName |
DBSpaceType |
Writable |
Online |
Usage |
Total Size |
Reserve |
NumFiles |
NumRWFiles |
Stripingon |
Stripe Size |
Blk Types |
OkTo Drop |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IQ_MAIN |
MAIN |
T |
T |
55 |
75M |
200M |
1 |
1 |
T |
1K |
1H, 5169A, 190 |
N |
IQ__ SYSTEM_ MAIN |
MAIN |
T |
T |
21 |
300M |
50M |
1 |
1 |
F |
8K |
1H, 7648F, 32D, 128M |
N |
IQ_SYSTEM_ TEMP |
TEMPORARY |
T |
T |
1 |
100M |
50M |
1 |
1 |
F |
8K |
1H, 64F, 32A |
N |