SQL Server备份命令通过Perl/DBI失败,但通过DOS工作>;SqlCmd。为什么?
我有一个简单的Perl/DBI程序来备份SQL Server数据库。程序运行干净, 不产生错误,假定创建数据库备份,但备份文件不存在 当我通过DBI执行以下命令时SQL Server备份命令通过Perl/DBI失败,但通过DOS工作>;SqlCmd。为什么?,sql,database,perl,backup,dbi,Sql,Database,Perl,Backup,Dbi,我有一个简单的Perl/DBI程序来备份SQL Server数据库。程序运行干净, 不产生错误,假定创建数据库备份,但备份文件不存在 当我通过DBI执行以下命令时 backup database dz to disk='C:\SqlBackups\dz.perl' with init 没有创建备份文件。Perl和SQL报告“为数据库“y”处理了x页, 但是当我执行DOS>dir时,备份文件不会出现 当我通过SqlCmd执行类似的命令时 backup database dz to disk='C
backup database dz to disk='C:\SqlBackups\dz.perl' with init
没有创建备份文件。Perl和SQL报告“为数据库“y”处理了x页,但是当我执行DOS>dir时,备份文件不会出现 当我通过SqlCmd执行类似的命令时
backup database dz to disk='C:\SqlBackups\dz.sqlcmd' with init
将创建一个备份文件
我正在运行ActiveState Perl版本
这是为MSWin32-x64-multi-thread构建的Perl5,版本16,Subversion1(v5.16.1)
在…上
Microsoft Windows 7 Professional Build 6.1(Build 7601;Service Pack 1)
这是节目单
#!perl -w
#Test making database backups via Perl DBI
#preparations
use strict; #require variable declaration
use DBI; #database interface
my $dbHandle = DBI->connect("dbi:ODBC:Driver={SQL Server};Server=DavidZokaites") or die;
$dbHandle->{TraceLevel} = "15|ALL"; #get maximum debugging information
#loop over all databases that need a dump
foreach my $dbName ( qw < dz master model msdb my_test > )
{
#DBI method that runs but creates no dumps
my $query = "backup database $dbName to disk='C:\\SqlBackups\\$dbName.perl' with init";
print $query, "\n";
warn "\n$dbName\n";
$dbHandle->do ($query) or die;
#SQLCMD that works
$query = "backup database $dbName to disk='C:\\SqlBackups\\$dbName.sqlcmd' with init";
print $query, "\n";
my $sysCmd = "SqlCmd -S DavidZokaites -Q \"$query\" >> TestDbi.sqlcmd.out";
system ($sysCmd) == 0
or die "Unable to execute $sysCmd \n";
}
#!perl-w
#通过Perl DBI进行数据库备份测试
#准备工作
使用strict;#require变量声明
使用DBI;#数据库接口
我的$dbHandle=DBI->connect(“DBI:ODBC:Driver={sqlserver};Server=DavidZokaites”)或die;
$dbHandle->{TraceLevel}=“15 | ALL”#获取最大限度的调试信息
#循环所有需要转储的数据库
foreach my$dbName(qw)
{
#运行但不创建转储的DBI方法
my$query=“备份数据库$dbName到磁盘='C:\\SqlBackups\\\$dbName.perl'和init”;
打印$query,“\n”;
警告“\n$dbName\n”;
$dbHandle->do($query)或die;
#SQLCMD可以正常工作
$query=“将数据库$dbName备份到磁盘='C:\\SqlBackups\\$dbName.sqlcmd'和init';
打印$query,“\n”;
my$sysCmd=“SqlCmd-S DavidZokaites-Q\“$query\”>>TestDbi.SqlCmd.out”;
系统($sysCmd)=0
或“无法执行$sysCmd\n”;
}
这里有一点DBI标准的跟踪
DBI::db=HASH(0x297ba10) trace level set to 0x7f0fff00/15 (DBI @ 0x0/0) in DBI 1.622-ithread (pid 7712)
master
!! info: '' CLEARED by call to do method
-> do for DBD::ODBC::db (DBI::db=HASH(0x297bae8)~0x297ba10 'backup database master to disk='C:\SqlBackups\master.perl' with init') thr#1d97e8
>> STORE DISPATCH (DBI::db=HASH(0x297ba10) rc1/2 @3 g2 ima41c pid#7712) at C:/Perl64/site/lib/DBD/ODBC.pm line 424 via at C:\David\DoBackup\TestDbi.pl line 20
1 -> STORE for DBD::ODBC::db (DBI::db=HASH(0x297ba10)~INNER 'Statement' 'backup database master to disk='C:\SqlBackups\master.perl' with init') thr#1d97e8
!!DBD::ODBC unsupported attribute passed (Statement)
STORE DBI::db=HASH(0x297ba10) 'Statement' => 'backup database master to disk='C:\SqlBackups\master.perl' with init'
1 <- STORE= ( 1 ) [1 items] at C:/Perl64/site/lib/DBD/ODBC.pm line 424 via at C:\David\DoBackup\TestDbi.pl line 20
SQLExecDirect backup database master to disk='C:\SqlBackups\master.perl' with init
Processing non utf8 sql in unicode mode
SQLExecDirect = 1
!!dbd_error2(err_rc=1, what=Execute immediate success with info, handles=(26bd70,2699f00,29cd080)
!SQLError(26bd70,2699f00,29cd080) = (01000, 4035, [Microsoft][ODBC SQL Server Driver][SQL Server]Processed 1376 pages for database 'master', file 'master' on file 1.)
!! info: '' '[Microsoft][ODBC SQL Server Driver][SQL Server]Processed 1376 pages for database 'master', file 'master' on file 1. (SQL-01000)' (err#0)
<- do= ( -1 ) [1 items] at C:\David\DoBackup\TestDbi.pl line 20
DBI::db=HASH(0x297ba10)跟踪级别在DBI 1.622-ithread(pid 7712)中设置为0x7f0fff00/15(DBI@0x0/0)
主人
!!信息:''已通过调用待办事项方法清除
->对DBD::ODBC::db(DBI::db=HASH(0x297bae8)~0x297ba10“将数据库主机备份到磁盘”='C:\SqlBackups\master.perl'with init')thr#
>>在C:/Perl64/site/lib/DBD/ODBC.pm第424行通过C:\David\DoBackup\TestDbi.pl第20行发送存储区(DBI::db=HASH(0x297ba10)rc1/2@3 g2 ima41c pid#7712)
1->存储DBD::ODBC::db(DBI::db=HASH(0x297ba10)~内部“语句”将数据库主机备份到磁盘class='C:\SqlBackups\master.perl'with init')thr#1d97e8
!!DBD::传递了ODBC不支持的属性(语句)
STORE DBI::db=HASH(0x297ba10)'Statement'=>'backup database master to disk='C:\SqlBackups\master.perl'with init'
1您需要阅读。当您使用“do”方法未完成时,任何可以输出打印消息的命令/过程。请使用prepare/execute和odbc\u more\u结果