Microframe Corporation 3007 Series Podręcznik Użytkownika Pobierz pdf (Strona 75)

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Conditions For Which Status Code 26 Is Returned

The following conditions apply to the Btrieve Create API operation.

See Create (14) in Btrieve API Guide, which is part of the Pervasive

PSQL Software Development Kit (SDK).

 Number of keys or key segments exceeds the permissible limit

for the given file format and page size. The maximum number of

keys is 119 for all file formats and page sizes. The number of

segments is listed in the table above.

 A key-only file is being created and more than one key is

supplied in the data buffer.

 A key-only file is being created, the “Reserve Duplication

Pointers” flag is “on,” and the “Number of Duplicate Pointers to

Reserve” field is equal to or greater than 1.

 The number of segments specified in the data buffer exceeds the

limit for maximum segments.

 The “Number of Duplicate Pointers to Reserve” field exceeds the

limit for maximum number of keys.

The following condition applies to the Btrieve Create Index API

operation. See Create Index (31) in Btrieve API Guide, which is part

of the Pervasive PSQL Software Development Kit (SDK).

 The number of segments specified in the data buffer exceeds the

limit for maximum segments.

16,384 n/a

n/a

119 or 420

”n/a” stands for “not applicable”

”rounded up” means that the page size is rounded up to the next size

supported by the file version. For example, 512 is rounded up to 1,024,

2,560 is rounded up to 4,096, and so forth.

The maximum number of index segments that can be used with the

relational interface is 119. For the transactional interface, the maximum

number is 204 for a page size of 4,096, and 420 for page sizes 8,192 and

16,384.

Page Size (bytes) Maximum Key Segments by File Version

8.x and prior 9.0 9.5

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 251 252

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Microframe Corporation 3007 Series Podręcznik Użytkownika Strona 75