/// <summary>
/// 查询是否存在列
/// </summary>
public bool Exists(string column_name)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("select count(1) from " + databaseprefix + "article_attribute_field");
strSql.Append(" where name=@name ");
MySqlParameter[] parameters =
{
new MySqlParameter("@name", MySqlDbType.VarChar, 100)
};
parameters[0].Value = column_name;
if (DbHelperMySql.Exists(strSql.ToString(), parameters) || DbHelperMySql.ExitColumnName(databaseprefix + "article", column_name))
{
return(true);
}
return(false);
}