Hp Integrity NonStop J-Series Manual do Utilizador descarregar pdf (Página 70)

DEVELOPING A DATA BASE

Creating a Data Base

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| |

| RESET |

| SET TYPE K |

| SET KEYLEN 26 |

| SET REC 26 |

| SET BLOCK 512 |

| SET IBLOCK 512 |

| CREATE DEPEND0 (17) |

| |

| NOTES |

| |

| (1) Contains header information written by the DDL |

| compiler |

| |

| (2) Identifies an alternate key specifier ("en"), provides |

| the location of this key (KEYOFF 4) in bytes relative |

| to the start of a record, defines the key length |

| (KEYLEN 18) in bytes, and identifies the alternate key |

| file number (FILE 0). (FUP associates this alternate |

| key with the actual alternate key file by means of the |

| ALTFILE command described in note 3.) |

| |

| (3) Identifies the name of the alternate key file |

| ("employe0") associated with this data file |

| |

| (4) Indicates that the data file is a key-sequenced (K) |

| file |

| |

| (5) Identifies the location (KEYOFF 0) in bytes of the |

| primary key field |

| |

| (6) Identifies the length (KEYLEN 4) in bytes of the |

| primary key field |

| |

| (7) Identifies the length (REC 54) in bytes of the records |

| that can be stored by this data file |

| |

| (8) Identifies the data block length in bytes (BLOCK 512) |

| |

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Figure 3-10. Sample FUP Source Commands (Continued)

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