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Oracle® Database Administrator's Reference
12c Release 1 (12.1) for Linux and UNIX-Based Operating Systems

E10638-16
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F Database Limits

This appendix describes database limits.

F.1 Database Limits

Table F-1 lists the default and maximum values for parameters in a CREATE DATABASE or CREATE CONTROLFILE statement.

Note:

Interdependencies between these parameters may affect permissible values.

Table F-1 CREATE CONTROLFILE and CREATE DATABASE Parameters

Parameter Default Maximum Value

MAXLOGFILES

16

255

MAXLOGMEMBERS

2

5

MAXLOGHISTORY

100

65534

MAXDATAFILES

30

65534

MAXINSTANCES

1

1055


Table F-2 lists the Oracle Database file size limits in bytes.

Table F-2 File Size Limits

File Type Platform File size limit

Data files

Any

4,194,303 multiplied by the value of the DB_BLOCK_SIZE parameter

Import/Export files and SQL*Loader files

IBM AIX on POWER Systems (64-Bit), HP-UX, Linux, and Oracle Solaris: 32-bit with 32-bit files

2,147,483,647 bytes

 

IBM AIX on POWER Systems (64-Bit), HP-UX, Linux, and Oracle Solaris: 64-bit files

Unlimited

Note: File size is limited by limits allowed by the operating system on different file systems.

Control files

HP-UX, Linux, IBM AIX on POWER Systems (64-Bit), and Oracle Solaris

25000 control file blocks with a block size of 4096 bytes.