/// <summary>
/// 获得oracle数据库的所有表结构
/// </summary>
/// <param name="postParam"></param>
/// <returns></returns>
public static List <TableModel> Generation(PostParamModel postParam)
{
//获取连接字符串
string connectionString = OracleDal.GetConnectionString(postParam);
//获取连接
OracleConnection connection = OracleDal.GetConnect(connectionString);
//查询sql
StringBuilder sql = new StringBuilder("SELECT ");
sql.Append("t.table_name AS \"TableName\",f.comments AS \"TableComment\" ");
sql.Append("FROM user_tables t ");
sql.Append("INNER JOIN user_tab_comments f ON t.table_name = f.table_name ");
sql.Append("WHERE t.table_name IN (" + postParam.Tb + ")");
OracleParameter[] tabParams = { new OracleParameter("@table_schema", postParam.Dbname) };
connection.Open();
List <TableModel> tabList = OracleDal.GetQueryData <TableModel>(connection, sql.ToString(), tabParams, typeof(TableModel));
//表的描述
StringBuilder colField = new StringBuilder();
colField.Append("col.column_name AS \"ColumnName\",");
colField.Append("col.data_type AS \"ColumnType\",");
colField.Append("col.data_default AS \"ColumnDefault\",");
colField.Append("col.nullable AS \"IsNullable\",");
colField.Append("cns.constraint_type AS \"ColumnKey\",");
colField.Append("ucc.comments AS \"ColumnComment\" ");
//表的连接
StringBuilder joinTab = new StringBuilder();
joinTab.Append("LEFT JOIN user_col_comments ucc ON ucc.table_name=col.table_name ");
joinTab.Append("AND ucc.column_name=col.column_name ");
joinTab.Append("LEFT JOIN user_cons_columns ccs ON ccs.table_name=col.table_name ");
joinTab.Append("AND ccs.column_name=col.column_name AND ccs.position=col.column_id ");
joinTab.Append("LEFT JOIN user_constraints cns ON col.table_name=cns.table_name ");
joinTab.Append("AND cns.constraint_type='P' AND ccs.constraint_name=cns.constraint_name ");
//表名
string tab = " user_tab_columns col ";
string order = " ORDER BY col.column_id ASC ";
for (int i = 0; i < tabList.Count; i++)
{
TableModel table = tabList[i];
//查询sql
string sqlCol = string.Format("SELECT {0} FROM {1} {2} WHERE col.table_name='{3}' {4}", colField.ToString(), tab, joinTab.ToString(), table.TableName, order);
List <ColumnModel> colList = OracleDal.GetQueryData <ColumnModel>(connection, sqlCol, null, typeof(ColumnModel));
table.Colums = colList;
}
connection.Close();
return(tabList);
}
/// <summary>
/// 测试oracle数据库连接
/// </summary>
/// <param name="postParam"></param>
/// <returns></returns>
public static bool TestConnect(PostParamModel postParam)
{
//获取连接字符串
string connectionString = OracleDal.GetConnectionString(postParam);
//获取连接
OracleConnection connection = OracleDal.GetConnect(connectionString);
//查询sql
string sql = "select count(1) from dual";
connection.Open();
int count = Convert.ToInt32(OracleDal.GetSingle(connection, sql));
connection.Close();
return(count > 0);
}
/// <summary>
/// 获取oracle所有表名
/// </summary>
/// <param name="postParam"></param>
/// <returns></returns>
public static List <TableModel> GetTables(PostParamModel postParam)
{
//获取连接字符串
string connectionString = OracleDal.GetConnectionString(postParam);
//获取连接
OracleConnection connection = OracleDal.GetConnect(connectionString);
//查询sql
StringBuilder sql = new StringBuilder("SELECT ");
sql.Append("t.table_name AS \"TableName\",f.comments AS \"TableComment\" ");
sql.Append("FROM user_tables t ");
sql.Append("INNER JOIN user_tab_comments f ON t.table_name = f.table_name ");
connection.Open();
List <TableModel> list = OracleDal.GetQueryData <TableModel>(connection, sql.ToString(), null, typeof(TableModel));
connection.Close();
return(list);
}