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Perl DBI 手册中文翻译版

Perl DBI 手册

Page 1

Perl DBI 中文帮助文档

Contents

名称 ................................................................................................................................................. 7

概览 ................................................................................................................................................. 7

注意 ............................................................................................................................................. 8

最近的更改 ................................................................................................................................. 9

DBI 1.00 - 14th August 1998 .................................................................................................... 9

DBI 0.96 - 10th August 1998 .................................................................................................... 9

DBI 0.92 - 4th February 1998................................................................................................... 9

描述 ................................................................................................................................................. 9

DBI 应用程序的架构 .................................................................................................................. 9

标记和惯例 ............................................................................................................................... 10

通用接口规则和误解 ............................................................................................................... 11

命名习惯和名字空间 ............................................................................................................... 11

提纲的使用 ............................................................................................................................... 12

占位符和绑定值 ....................................................................................................................... 14

Null 值 ................................................................................................................................... 14

性能 ....................................................................................................................................... 14

SQL ............................................................................................................................................. 15

DBI 类 ............................................................................................................................................ 15

DBI 类方法 ................................................................................................................................ 15

连接 ....................................................................................................................................... 15

available_drivers ................................................................................................................... 17

data_sources ......................................................................................................................... 17

Trace ...................................................................................................................................... 17

DBI 工具函数 ............................................................................................................................ 18

Neat ....................................................................................................................................... 18

neat_list ................................................................................................................................. 18

Perl DBI 手册中文翻译版

Perl DBI 手册

Page 2

looks_like_number ................................................................................................................ 18

DBI 动态属性 ............................................................................................................................ 18

所有处理器通用的方法 ............................................................................................................... 19

Err .......................................................................................................................................... 19

Errstr ...................................................................................................................................... 19

State ....................................................................................................................................... 19

Trace ...................................................................................................................................... 19

trace_msg .............................................................................................................................. 19

Func ....................................................................................................................................... 20

所有处理器通用的属性 ............................................................................................................... 20

Warn (boolean, inherited) ..................................................................................................... 20

Active (boolean, read-only) ................................................................................................... 20

Kids (integer, read-only) ........................................................................................................ 20

ActiveKids (integer, read-only) .............................................................................................. 20

CachedKids (hash ref) ............................................................................................................ 20

CompatMode (boolean, inherited) ....................................................................................... 21

InactiveDestroy (boolean) ..................................................................................................... 21

PrintError (boolean, inherited) .............................................................................................. 21

RaiseError (boolean, inherited) ............................................................................................. 21

ChopBlanks (boolean, inherited) ........................................................................................... 22

LongReadLen (unsigned integer, inherited) .......................................................................... 22

LongTruncOk (boolean, inherited) ........................................................................................ 22

private_* ................................................................................................................................ 22

DBI 数据库处理器对象 ................................................................................................................ 22

数据库处理器方法 ................................................................................................................... 22

selectrow_array ..................................................................................................................... 22

selectall_arrayref ................................................................................................................... 23

Prepare .................................................................................................................................. 23

prepare_cached ..................................................................................................................... 23

do ........................................................................................................................................... 24

Commit .................................................................................................................................. 25

Perl DBI 手册中文翻译版

Perl DBI 手册

Page 3

Rollback ................................................................................................................................. 25

disconnect ............................................................................................................................. 25

ping ........................................................................................................................................ 25

table_info *NEW* ................................................................................................................. 26

tables *NEW* ........................................................................................................................ 26

type_info_all *NEW* ............................................................................................................. 26

type_info *NEW* .................................................................................................................. 28

Quote ..................................................................................................................................... 29

数据库处理器属性 ................................................................................................................... 29

AutoCommit (boolean) .......................................................................................................... 30

Name (string) ......................................................................................................................... 31

RowCacheSize (integer) *NEW* ............................................................................................ 31

DBI 语句处理器对象 .................................................................................................................... 31

语句处理器方法 ....................................................................................................................... 31

bind_param ........................................................................................................................... 31

Execute .................................................................................................................................. 33

fetchrow_arrayref ................................................................................................................. 33

fetchrow_array ...................................................................................................................... 33

fetchrow_hashref .................................................................................................................. 34

fetchall_arrayref .................................................................................................................... 34

finish ...................................................................................................................................... 35

Rows ...................................................................................................................................... 35

bind_col ................................................................................................................................. 35

bind_columns ........................................................................................................................ 36

dump_results ......................................................................................................................... 36

语句处理器属性 ....................................................................................................................... 37

NUM_OF_FIELDS (integer, read-only) ................................................................................... 37

NUM_OF_PARAMS (integer, read-only) ................................................................................ 37

NAME (array-ref, read-only) .................................................................................................. 37

TYPE (array-ref, read-only) *NEW* ....................................................................................... 37

PRECISION (array-ref, read-only) *NEW* .............................................................................. 37

Perl DBI 手册中文翻译版

Perl DBI 手册

Page 4

SCALE (array-ref, read-only) *NEW* ..................................................................................... 37

NULLABLE (array-ref, read-only) ........................................................................................... 38

CursorName (string, read-only) ............................................................................................. 38

Statement (string, read-only) *NEW* ................................................................................... 38

RowsInCache (integer, read-only) *NEW* ............................................................................ 38

其他的信息 ................................................................................................................................... 38

事务 ........................................................................................................................................... 38

处理 BLOB/CLOB/memo 字段 .................................................................................................. 39

简单的例子 ............................................................................................................................... 39

线程和线程安全性 ................................................................................................................... 40

信号处理和取消操作 ............................................................................................................... 41

调试 ............................................................................................................................................... 41

警告和错误消息 ........................................................................................................................... 41

致命的错误 ............................................................................................................................... 41

Can't call method "prepare" without a package or object reference ................................... 41

Can't call method "execute" without a package or object reference ................................... 41

Database handle destroyed without explicit disconnect ...................................................... 42

DBI/DBD internal version mismatch ...................................................................................... 42

DBD driver has not implemented the AutoCommit attribute ............................................... 42

Can't [sg]et %s->{%s}: unrecognised attribute ...................................................................... 42

panic: DBI active kids (%d) > kids (%d) .................................................................................. 42

panic: DBI active kids (%d) < 0 or > kids (%d) ........................................................................ 42

警告 ........................................................................................................................................... 42

DBI Handle cleared whilst still holding %d cached kids! ....................................................... 42

DBI Handle cleared whilst still active! ................................................................. 42

DBI Handle has uncleared implementors data ........................................................... 42

DBI Handle has %d uncleared child handles ............................................................. 42

其他 ............................................................................................................................................... 42

数据库文档 ............................................................................................................................... 42

书籍和日志 ............................................................................................................................... 42

Perl DBI 手册中文翻译版

Perl DBI 手册

Page 5

手册页 ....................................................................................................................................... 42

邮件列表 ................................................................................................................................... 42

相关的 www 链接 .................................................................................................................... 43

DBI 主页： ............................................................................................................................ 43

其他相关的联接： ............................................................................................................... 43

推荐的 Perl 编程链接： ....................................................................................................... 43

FAQ ............................................................................................................................................ 43

作者 ............................................................................................................................................... 43

版权 ............................................................................................................................................... 43

翻译 ............................................................................................................................................... 43

支持和责任 ................................................................................................................................... 43

未解决的问题 ............................................................................................................................... 44

常见问题 ....................................................................................................................................... 44

DBI 有多快？ ............................................................................................................................ 44

为什么我的 CGI 脚本不能正确工作？ ................................................................................... 45

如何维护到一个数据库的 WWW 连接？ .............................................................................. 45

驱动器建立失败因为找不到 DBIXS.h ..................................................................................... 45

DBI 和 DBD::Foo 是否已导入 NT / Win32? .............................................................................. 45

ODBC 呢？ ................................................................................................................................. 46

DBI 是否有 2000 年问题？ ...................................................................................................... 46

已知的驱动器模块 ....................................................................................................................... 46

Altera - DBD::Altera ............................................................................................................... 46

ODBC - DBD::ODBC ................................................................................................................ 46

Oracle - DBD::Oracle .............................................................................................................. 46

Ingres - DBD::Ingres ............................................................................................................... 46

mSQL - DBD::mSQL ................................................................................................................ 46

DB2 - DBD::DB2 ..................................................................................................................... 46

Empress - DBD::Empress ....................................................................................................... 46

Informix - DBD::Informix ....................................................................................................... 46

Solid - DBD::Solid ................................................................................................................... 46

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