c# 建库 建表的方法谁能帮我写一个类

c# 建库 建表的方法谁能帮我写一个类
[解决办法]
private Boolean CreateDataBase(String name, SqlConnection sqlConnection)
{

String sqlCommandText = "create database " + name;
SqlCommand sqlCommand = new SqlCommand(sqlCommandText, sqlConnection);
try
{
sqlCommand.ExecuteScalar();
}
catch
{
return false;
}
return true;
}
private Boolean CreateTable(String dataBaseName, String tableName, Node NodeConfig, SqlConnection sqlConnection)
{
String sqlCommandText = "use " + dataBaseName;
SqlCommand sqlCommand = new SqlCommand(sqlCommandText, sqlConnection);
sqlCommand.ExecuteScalar();
sqlCommandText = "CREATE TABLE " + tableName;
int n = NodeConfig.Nodes.Count;
String PKs = "";
for (int i = 0; i < n; i++)
{
Node node = NodeConfig.Nodes[i];
String name = node.Property("name").Value;
String dateType = node.Property("dateType").Value;
String prec = node.Property("prec").Value;
String scale = node.Property("scale").Value;
String defalut = node.Property("defaultValue").Value;
Boolean IsNullable = node.Property("isNullable").Value == "true";
Boolean isPK = node.Property("isPK").Value == "true";
Boolean isIdentity = node.Property("isIdentity").Value == "true";
String identityStart = node.Property("identityStart").Value;
String identityStep = node.Property("identityStep").Value;
if (prec == ""
[解决办法]
prec == "0")
{
prec = "128";
}
if (scale == "")
{
scale = "0";
}

if (i == 0)
{
sqlCommandText = sqlCommandText + "(";
}
sqlCommandText = sqlCommandText + name + " " + dateType;
if (dateType == "decimal"
[解决办法]
dateType == "numeric")
{
sqlCommandText = sqlCommandText + "(" + prec + "," + scale + ")";
}
else if (dateType == "smallint"
[解决办法]
dateType == "tinyint"
[解决办法]
dateType == "char"
[解决办法]
dateType == "varchar")
{
sqlCommandText = sqlCommandText + "(" + prec + ")";
}
if (!IsNullable)
{
sqlCommandText = sqlCommandText + " NOT NULL";
}
if ((!isIdentity)
[解决办法]
dateType == "char"
[解决办法]
dateType == "varchar"
[解决办法]
dateType == "date"
[解决办法]
dateType == "datetime")
{
if (defalut != "")
{
sqlCommandText = sqlCommandText + " DEFAULT '" + defalut + "'";
}
}
if (isPK)
{
if (PKs == "")
{
PKs = PKs + name;
}
else
{
PKs = PKs + "," + name;
}
}
if (isIdentity && (dateType == "int"
[解决办法]
dateType == "integer"
------解决方案--------------------

dateType == "smallint"
[解决办法]
dateType == "tinyint"
[解决办法]
dateType == "decimal"
[解决办法]
dateType == "numeric"))
{
if (identityStart == "")
{
identityStart = "1";
}
if (identityStep == ""
[解决办法]
identityStep == "0")
{
identityStep = "1";
}
sqlCommandText = sqlCommandText + " IDENTITY(" + identityStart + "," + identityStep + ")";
}
if (i == n - 1)
{
if (PKs != "")
{
sqlCommandText = sqlCommandText + ",PRIMARY KEY(" + PKs + ")";
}
sqlCommandText = sqlCommandText + ")";
}
else
{
sqlCommandText = sqlCommandText + ",";
}
}
sqlCommand = new SqlCommand(sqlCommandText, sqlConnection);
try
{
sqlCommand.ExecuteScalar();
}
catch
{
return false;
}
return true;
}
[解决办法]
上面两个函数,一个创建表格,一个创建函数.
下面的创建数据连结
public SqlConnection Connection(Config config,String DataBaseName="")
{
Node dataConnectionNode=config.Root.SubNode("dataConnection");
String Service = dataConnectionNode.Property("dataService").Value;
String InstanceName = dataConnectionNode.Property("instanceName").Value;
String UserName = dataConnectionNode.Property("username").Value;
String Password = dataConnectionNode.Property("password").Value;
Boolean IntegratedSecurity = dataConnectionNode.Property("integratedSecurity").Value=="true";

String connectionString;
connectionString = "Data Source=" + Service + "\\" + InstanceName + ";" + "Integrated Security=" + (IntegratedSecurity ? "true" : "false");
if (IntegratedSecurity)
{
connectionString = connectionString + ";uid=" + UserName + ";" + "pwd=" + Password;
}
if (DataBaseName != "")
{
connectionString = connectionString + ";DATABASE=" + DataBaseName;
}
try
{
m_Connection = new SqlConnection(connectionString);
m_Connection.Open();
}
catch
{
return null;
}
return m_Connection;
}