List of data types

The following table lists the data types for field values and the corresponding C and C++ data types. The values in the Format column of the record field tables have the types shown below in the Field column under Data type.

Table 5‒5: List of summary rules
Data type		Byte	Description
Field	C and C++	Byte	Description
`char(n)`	`char( )`	Number in parentheses	Character data of `n` bytes.
`double`	`double`	8	Numeric value (1.7E±308 (15 digits))
`long`	`long`	4	Numeric value (-2,147,483,648 to 2,147,483,647)
`string(n)`	`char[ ]`	Number in parentheses	Character string of `n` bytes. Japanese Windows: Shift-JIS characters can be set. Simplified-Chinese Windows: GB18030 characters can be set^#. Other Windows: Only 7-bit ASCII characters can be set. The last character is null.
`time_t`	`unsigned long`	4	Numeric value (0 to 4,294,967,295)
`timeval`	Structure	8	Numeric value (first 4 bytes are seconds, next 4 bytes are microseconds)
`ulong`	`unsigned long`	4	Numeric value (0 to 4,294,967,295)
`utime`	Structure	8	Numeric value (first 4 bytes are seconds, next 4 bytes are microseconds)
`word`	`unsigned short`	2	Numeric value (0 to 65,535)
(Not applicable)	`unsigned char`	1	Numeric value (0 to 255)

#: In Simplified-Chinese Windows environment, database name of monitoring target Microsoft SQL Server don't use out of range of GBK. If you use out of range of GBK in database name, PFM - RM for Microsoft SQL Server collect performance data fail. In this case, "KAVL19812-E" is output by agent log error file (detail information: rc=0x80040e37, msg include "?").

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