Oracle® TimesTen In-Memory Database SQL Reference Release 11.2.1 Part Number E13070-04 |
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The CACHE_GROUP table describes the definition of a TimesTen cache.
Columns
Column name | Type | Description |
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CGNAME | TT_CHAR (31) NOT NULL | Group name. |
CGOWNER | TT_CHAR (31) NOT NULL | Group owner. |
CGID | TT_INTEGER NOT NULL for 32-bit systems;
TT_BIGINT NOT NULL for 64-bit systems |
Id of this cache group. |
ROOT | TT_INTEGER NOT NULL for 32-bit systems;
TT_BIGINT NOT NULL for 64-bit systems |
Unique identifier for cache group's root table |
SOURCE | TT_CHAR (8) NOT NULL | Data source for caching. In this release the only legal value is 'ORACLE'. |
CGDURATION | TT_INTEGER NOT NULL | Duration |
TBLCNT | TT_SMALLINT NOT NULL | Number of tables in cache group. |
REFRESH_MODE | TT_CHAR (1) NOT NULL | The current auto refresh mode.
'N': No auto refresh. 'I': Incremental auto refresh. 'F': Full auto refresh. |
REFRESH_STATE | TT_CHAR (1) NOT NULL | The current auto refresh mode.
'N': Off. 'Y': On. 'P': Paused. |
REFRESH_INTERVAL | TT_BIGINT NOT NULL | Autorefresh interval in milliseconds. |
CGATTRIBUTES | BINARY (4) NOT NULL | Bits 0-7 are for cache group types.
Bits 8-15 are for autoload options. Bit 0: 1 - READONLY Bit 1: 1 - SYNCHRONOUS WRITETHROUGH Bit 2: 1 - AUTOREFRESH Bit 3: 1 - PROPAGATE Bit 8: 1 - Autoload on create (Always 1 for AUTOREFRESH) Bit 9: 1 - Dynamic cache group |
REFRESH_WITH_LIMIT | TT_INTEGER NOT NULL | The maximum number of autorefresh change log records kept in the trigger log table in the Oracle database. A larger value causes the autorefresh to use more space at Oracle, while it prevents the truncation of logs that are not autorefreshed to TimesTen yet, and therefore reduces the possible fallback to full refresh.
The field is used only by incremental autorefresh |
ORATOP | TT_VARCHAR (409600) NOT INLINE | Reserved for future use |
ORAPROXY | TT_VARCHAR (409600) NOT INLINE | Reserved for future use |
ORABASE | TT_VARCHAR (409600) NOT INLINE | Reserved for future use |
TTALIAS | TT_VARCHAR (409600) NOT INLINE | Reserved for future use |