sqlserver数据导入mysql四:给sqlserver中的表创建索引

#!/usr/bin/perl
use DBI;
use Switch;
use Encode;
use Encode::CN;

# my $source_name = "zoe";
# my $source_user_name = "sa";
# my $source_user_psd = "123";

	
	# my $db_name="mysqlDb";
	# my $location="192.168.0.46";
	# my $port="3306";
	# my $db_user="zoe";
	# my $db_pass="123";
	
	my $source_name = "zoe";
my $source_user_name = "sa";
my $source_user_psd = "123";
	
	
my $dbh=DBI->connect("dbi:ODBC:$source_name",$source_user_name,$source_user_psd);
#获取所有的用户表
my $sth=$dbh->prepare("select name,object_id from sys.all_objects where type='U' and is_ms_shipped=0 and name <>'sysdiagrams'");
$sth->execute();
my $n=0;
my $ok=0;
my  $sort_column="";
while (@data=$sth->fetchrow_array())
{
	#print $data[0].$data[1];
	$n+=1;
	 $ok=0;
	
	#获取列
	get_columns($data[0],$data[1]);
	if($ok ==1){
	
	 print '正在测试'.$data[0].'表的索引'.$sort_column."n";
  
 my  $sql_create="select * from sysindexes where id=object_id('$data[0]') and name='$sort_column'";
  


    my $dbh_mssql=DBI->connect("dbi:ODBC:$source_name",$source_user_psd,{RaiseError =>1});
		  	   $dbh_mssql->{LongTruncOk}=1;      
         $dbh_mssql->{LongReadLen}=1048576;
 
         my $sth_select=$dbh_mssql->prepare($sql_create);	 
		
         $sth_select->execute() or die 'Cannot execute: '. $sth_select->errstr();
    my @select_col;
	   my $select_data;
	 while($select_data=$sth_select->fetchrow_arrayref())
		   {
	              $select_col[$nn]=[@$select_data];  
				   
           }	     	  
			  
			  my $col=@select_col;
			  		  			  
			  if($col !=0)
			  {
			 	print '表'.$data[0].'已存在索引'.$sort_column."n";
			  
			  }
			  else
			  {
			  
			    do_sql($data[0],$sort_column);
	 open(FILE,">>createtableallindex.txt");  
syswrite(FILE,"$nn");  
syswrite(FILE,"$data[0]n");  
close(FILE); 
			  }
	
	
	
	}
		
}
$sth->finish;
	$dbh ->disconnect;
	  print '所有表的索引创建结束'."n";

##获取所有的列
sub get_columns
{
	$dbh2=DBI->connect("dbi:ODBC:$source_name",$source_user_psd);
	my $sql="select col.name,tp.name,col.max_length,col.[precision],col.[scale],col.[is_nullable],col.[is_identity] from sys.all_columns col
					inner join sys.types tp on col.system_type_id=tp.system_type_id  and col.user_type_id=tp.user_type_id
					where object_id=$_[1]";

	my $cols=$dbh2 -> prepare($sql);
	$cols->execute();
	my $cols_str = "";
	
	my $n=0;
	
 $sort_column="";

	while(@col= $cols->fetchrow_array())
	{
		($col_name,$type_name,$max_length,$precision,$scale,$is_nullable,$is_identity)=@col;
	
	
	
			if($is_identity == 1)
			{
				$ok=1;
					$sort_column="$col_name";
			}
	
	
	
	
 }

 
 
 }
 
  sub do_sql
  {
  
  print '开始创建'.$_[0].'表的索引'.$_[1]."n";
  
 my  $sql_create="CREATE UNIQUE INDEX  $_[1]  ON $_[0] ($_[1])";
  


    my $dbh_mssql=DBI->connect("dbi:ODBC:$source_name",{RaiseError =>1});
		  	   $dbh_mssql->{LongTruncOk}=1;      
         $dbh_mssql->{LongReadLen}=1048576;
 
         my $sth_select=$dbh_mssql->prepare($sql_create);
		 
		 
# open(FILE,">>all_export_data222.txt");    
# syswrite(FILE,"$sql_selectn");    
# close(FILE); 
		
         $sth_select->execute() or die 'Cannot execute: '. $sth_select->errstr();
    print '创建'.$_[0].'表的索引'.$_[1].'结束'."n";
  }

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!