C# 读取文件中的sql语句 创建数据库以及表结构

时间:2023-11-18 10:32:26

大概思路是: 读取文件 根据文件中行内容为GO 作为分割  一条条放到list中 然后在程序中逐条执行sql语句;

值得一提的是 创建数据库的语句是不允许放到程序事务中执行的 所以目前我是分了两个文本文件  先执行创建数据库的语句 把数据库创建完成 再通过事务执行建表 存储过程等的语句;

目前没有找到可以一起执行创建的方法 如果有朋友有解决的方法还望能够指教一下

代码贴上:

首先创建数据库:

           string con = System.Configuration.ConfigurationManager.AppSettings["create"];    
/// <summary>
/// 创建数据库
/// </summary>
/// <param name="fileName"></param>
/// <param name="str1"></param>
/// <param name="str2"></param>
/// <param name="dbname"></param>
/// <param name="partschemeName"></param>
/// <returns></returns>
public bool CreateBase(string fileName, string str1, string str2, string dbname, string partschemeName)
{
ArrayList list = GetSqlListFromFile(fileName, str1, str2, dbname, partschemeName);
return ExecuteCommand4CreateDataBase(list, con);
} /// <summary>
/// 创建数据库
/// </summary>
/// <param name="list"></param>
/// <param name="connString"></param>
/// <returns></returns>
public bool ExecuteCommand4CreateDataBase(ArrayList list, string connString)
{
SqlConnection MyConnection = new SqlConnection(connString);
MyConnection.Open();
SqlCommand command = new SqlCommand();
command.Connection = MyConnection;
try
{
foreach (string commandText in list)
{
command.CommandText = commandText;
command.ExecuteNonQuery();
}
return true;
}
catch (Exception ex)
{
throw ex;
}
finally
{
MyConnection.Close();
}
}     /// <summary>
/// 获取文件内的sql语句list
/// </summary>
/// <param name="fileName"></param>
/// <param name="str1">文件中数据库名字</param>
/// <param name="str2">文件中数据库分区方案名字</param>
/// <param name="dbname">新创建的数据库名字</param>
/// <param name="partschemeName">新创建的数据库分区方案名称</param>
/// <returns></returns>
public ArrayList GetSqlListFromFile(string fileName, string str1, string str2, string dbname, string partschemeName)
{
ArrayList sqlList = new ArrayList();
if (!File.Exists(fileName))
{
return sqlList;
}
StreamReader rs = new StreamReader(fileName, System.Text.Encoding.Default);
string commandText = "";
string line = "";
while (rs.Peek() > -1)
{
line = rs.ReadLine();
if (line == "")
{
continue;
}
if (line != "GO" && line != "go")
{
commandText += line;
commandText = commandText.Replace(str1, dbname);
commandText = commandText.Replace(str2, partschemeName);
commandText += "\r\n";
}
else
{
sqlList.Add(commandText);
commandText = "";
}
} rs.Close();
return sqlList;
}

然后通过事务创建表以及存储过程等:

    
/// <summary>
/// 创建表 存储过程等
/// </summary>
/// <param name="fileName"></param>
/// <param name="str1"></param>
/// <param name="str2"></param>
/// <param name="dbname"></param>
/// <param name="partschemeName"></param>
/// <returns></returns>
public bool CreateTable(string fileName, string str1, string str2, string dbname, string partschemeName)
{
ArrayList list = GetSqlListFromFile(fileName, str1, str2, dbname, partschemeName);
return ExecuteCommand(list, con);
}      /// <summary>
/// 创建数据表 存储过程等(事务)
/// </summary>
/// <param name="sqlList"></param>
/// <param name="connString"></param>
/// <returns></returns>
public bool ExecuteCommand(ArrayList sqlList, string connString)
{ SqlConnection MyConnection = new SqlConnection(connString);
MyConnection.Open();
SqlTransaction trans = MyConnection.BeginTransaction();
SqlCommand command = new SqlCommand();
command.Connection = MyConnection;
command.Transaction = trans;
try
{
foreach (string commandText in sqlList)
{
command.CommandText = commandText;
command.ExecuteNonQuery();
}
trans.Commit();
return true;
}
catch (Exception ex)
{
trans.Rollback();
throw ex;
}
finally
{
MyConnection.Close();
}
}

  以上。