Chapter 1: System Tables

sysconfigures

master database only

Description

sysconfigures contains one row for each configuration parameter that can be set by the user.

Columns

The columns for sysconfigures are:

Name	Datatype	Description
config	smallint	Configuration parameter number.
value	int	The user-modifiable value for the parameter with integer datatype. Its value is 0 for the parameters with character datatype.
comment	varchar(255)	Name of the configuration parameter.
status	int	Value that represents the type of configuration parameter. For details, see Table 1-3.
name	varchar(255) null	Name of the configuration parameter (the same value as comment).
parent	smallint null	Configuration parameter number of the parent; if more than one parent, the additional parent numbers are stored in sysattributes.
value2	varchar(255) null	The user-modified value for the parameter with the character datatype. Its value is NULL for parameters with integer datatype. value2 is also used to store the pool size of a buffer pool.
value3	int null	Stores the wash size of a buffer pool.
value4	int null	Stores the asynchronous prefetch percents of a buffer pool, or -1 where an unspecified or default value.

Table 1-3 provides information about the status column.

**Table 1-3: Status column description**
Status type	Decimal	Hex	Description
CFG_NO_OPTIONS	0	0x0	Parameter has no options.
CFG_SYSTEM_OPTION	1	0x01	Parameter is a system option.
CFG_SYSTEM_GROUP	2	0x02	Parameter is a system group.
CFG_STATIC	4	0x04	Parameter is static.
CFG_DYNAMIC	8	0x08	Parameter is dynamic.
CFG_CALCULATED	16	0x10	Parameter is calculated.
CFG_READONLY	32	0x20	Parameter is read-only.
CFG_MEMORY_USED	64	0x40	Parameter consumes memory.
CFG_CONFIG_FILE	128	0x80	Parameter is externally visible.
CFG_SYSTEM_TAB	256	0x100	Parameter is externally visible only in system table.
CFG_EXTRAS_OPTION	512	0x200	Parameter is for CFG_EXTRAS not DS_CONFIG.
CFG_CFGBLK	1024	0x400	Parameter is stored in the configuration block.
CFG_CACHE_GROUP	2048	0x800	Parameter is a cache group.
CFG_CACHE_OPTION	4096	0x1000	Parameter is a cache option.
CFG_BUFFER_POOL_GROUP	8192	0x2000	Parameter is a buffer pool group.
CFG_BUFFER_POOL_OPTION	16384	0x4000	Parameter is a buffer pool option.
CFG_INTERNAL	32768	0x8000	Parameter is for internal use only.
CFG_FNOF_LPAGESIZE	65536	0x10000	Parameter entry depends on logical pagesize.

Indexes

Unique clustered index on name, parent, config
Nonclustered index on config
Nonclustered index on parent, config

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