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",$source_user_name,$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,"$n\n");
syswrite(FILE,"$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",$source_user_name,$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",$source_user_name,$source_user_psd,{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_select\n");
# close(FILE);

$sth_select->execute() or die 'Cannot execute: '. $sth_select->errstr();
print '创建'.$_[0].'表的索引'.$_[1].'结束'."\n";
}