paging : http://www.codeproject.com/Articles/44858/Custom-Paging-GridView-in-ASP-NET-Oracle
https://github.com/MarcosMeli/FileHelpers/
http://www.codeproject.com/Articles/685310/Simple-and-fast-CSV-library-in-Csharp
http://www.codeproject.com/Tips/665519/Writing-a-DataTable-to-a-CSV-File?msg=5258197
https://github.com/JoshClose/CsvHelper
http://dba-oracle.com/t_display_oracle_stored_procedures.htm
oracle database metadata
https://oracle-base.com/articles/9i/dbms_metadata
https://docs.oracle.com/cd/B19306_01/appdev.102/b14258/d_metada.htm#BGBHHHBG
https://docs.oracle.com/cd/B19306_01/appdev.102/b14294/metadata.htm
http://www.rgagnon.com/javadetails/java-handle-utf8-file-with-bom.html
https://sqlmetadata.codeplex.com/
---top 5 适应于 Oracle,Sql server,DB2 select * from (select dense_rank() over (order by BookKindID) as dr,b.* from BookKindList b) x where dr<=5; --分页 Oracle select * from (select t1.*,rownum rn from (select * from BookKindList) t1 where rownum<=12) where rn>=8; --分页 适应于 Oracle,Sql server,DB2 select * from (select row_number() over (order by BookKindID) as rn,b.* from BookKindList b) x where rn between 1 and 5; select * from (select row_number() over (order by BookKindID) as rn,b.* from BookKindList b) x where rn between 6 and 10;
Oracle sql:
--书分类目录kind -- Geovin Du create table BookKindList ( BookKindID INT PRIMARY KEY, BookKindName nvarchar2(500) not null, BookKindParent INT null, BookKindCode varchar(100) ---編號 ); --序列创建 drop SEQUENCE BookKindList_SEQ; CREATE SEQUENCE BookKindList_SEQ INCREMENT BY 1 -- 每次加几个 START WITH 1 -- 从1开始计数 NOMAXVALUE -- 不设置最大值 NOCYCLE -- 一直累加,不循环 NOCACHE; --设置缓存cache个序列,如果系统down掉了或者其它情况将会导致序列不连续,也可以设置为---------NOCACHE --自增长触发器 drop trigger BookKindList_ID_AUTO; create or replace trigger BookKindList_ID_AUTO before insert on BookKindList --BookKindList 是表名 for each row declare nextid number; begin IF :new.BookKindID IS NULL or :new.BookKindID=0 THEN --BookKindID是列名 select BookKindList_SEQ.Nextval --BookKindList_SEQ正是刚才创建的 into nextid from dual; :new.BookKindID:=nextid; end if; end; -- 添加 drop PROCEDURE proc_Insert_BookKindList; CREATE OR REPLACE PROCEDURE proc_Insert_BookKindList ( temTypeName nvarchar2, temParent number ) AS ncount number; begin --SELECT COUNT (*) INTO ncount FROM BookKindList fm1 where EXISTS (SELECT BookKindName from BookKindList fm2 where fm2.BookKindName=temTypeName);--判斷是否存 SELECT count(*) INTO ncount FROM BookKindList where BookKindName=temTypeName; if ncount<=0 then begin INSERT INTO BookKindList (BookKindName,BookKindParent) VALUES(temTypeName,temParent); commit; end; else begin SELECT BookKindID INTO ncount FROM BookKindList where BookKindName=temTypeName; dbms_output.put_line('存在相同的记录,添加不成功!'||ncount); end; end if; Exception When others then dbms_output.put_line('存在问题,添加不成功!'||ncount); Rollback; end proc_Insert_BookKindList; --测试 oracle 11g 涂聚文 20150526 exec proc_Insert_BookKindList ('油彩画',3); drop PROCEDURE proc_Insert_BookKindOut; drop PROCEDURE procInsertBookKindOut; -- 添加有返回值 CREATE OR REPLACE PROCEDURE proc_Insert_BookKindOut --添加返回ID ( temTypeName nvarchar2, temParent int, temId out int ) AS ncount number; reid number; begin --SELECT COUNT (*) INTO ncount FROM BookKindList fm1 where EXISTS (SELECT BookKindName from BookKindList fm2 where fm2.BookKindName=temTypeName);--判斷是否存 SELECT count(*) INTO ncount FROM BookKindList where BookKindName=temTypeName; if ncount<=0 then begin --INSERT INTO BookKindList (BookKindID,BookKindName,BookKindParent) VALUES(BookKindList_SEQ.nextval,temTypeName,temParent); INSERT INTO BookKindList (BookKindName,BookKindParent) VALUES(temTypeName,temParent); select BookKindList_SEQ.currval into reid from dual; temId:=reid; dbms_output.put_line('添加成功!'||temId); commit; end; else begin SELECT BookKindID INTO ncount FROM BookKindList where BookKindName=temTypeName; dbms_output.put_line('存在相同的记录,添加不成功!'||ncount); temId:=0; end; end if; Exception When others then begin dbms_output.put_line('存在问题,添加不成功!'||ncount); temId:=0; Rollback; end; end proc_Insert_BookKindOut; --测试 oracle 11g 涂聚文 20150526 declare mid number:=0; nam nvarchar2(100):='黑白画'; par number:=3; begin --proc_Insert_BookKindOut(nam in nvarchar2,par in int,mid in out int); proc_Insert_BookKindOut(nam,par ,mid); if mid>0 then dbms_output.put_line('添加成功!输出参数:'||mid); else dbms_output.put_line('存在相同的记录,添加不成功!输出参数:'||mid); end if; end; --修改 CREATE OR REPLACE PROCEDURE procUpdateBookKindList ( p_id IN INT,--BookKindList.BookKindID%TYPE, p_name IN nvarchar2,--BookKindList.BookKindName%TYPE, p_parent IN INT,--BookKindList.BookKindParent%TYPE, p_code IN varchar--BookKindList.BookKindCode%TYPE ) IS ncount number; BEGIN SELECT count(*) INTO ncount FROM BookKindList where BookKindName=p_name; if ncount<=0 then begin UPDATE BookKindList SET BookKindName=p_name,BookKindParent=p_parent,BookKindCode=p_code WHERE BookKindID=p_id; COMMIT; end; else begin SELECT BookKindID INTO ncount FROM BookKindList where BookKindName=p_name; dbms_output.put_line('存在相同的记录,修改不成功!'||ncount); end; end if; END procUpdateBookKindList; --测试 begin procUpdateBookKindList(8,'哲学',1,'Geovin Du'); end; --删除 CREATE OR REPLACE PROCEDURE procDeleteBookKindList(p_BookKindID IN BookKindList.BookKindID%TYPE) IS BEGIN DELETE BookKindList where BookKindID = p_BookKindID; COMMIT; END; ---一条记录 --创建包: create or replace package pack_BookKindId is type cur_BookKindId is ref cursor; end pack_BookKindId; --创建存储过程 create or replace procedure procSelectBookKindList (p_id in int,p_cur out pack_BookKindId.cur_BookKindId) is v_sql varchar2(400); begin if p_id = 0 then --0 查询所有 open p_cur for select * from BookKindList; else v_sql := 'select * from BookKindList where BookKindID =: p_id'; open p_cur for v_sql using p_id; end if; end procSelectBookKindList; --创建包以游标的形式返回BookKindList表的所有记录结果集 drop package pkg_Select_BookKindListAll; drop procedure proc_Select_BookKindListAll; create or replace package pkgSelectBookKindListAll is -- Author : geovindu type mycur is ref cursor; procedure procSelectBookKindListAll(cur_return out mycur); end pkgSelectBookKindListAll; create or replace package body pkgSelectBookKindListAll is -- Function and procedure implementations procedure procSelectBookKindListAll(cur_return out mycur) is begin open cur_return for select * from BookKindList; end procSelectBookKindListAll; end pkgSelectBookKindListAll; -- 测试包和存储过程查询表中所有内容 declare --定义游标类型的变量 cur_return pkgSelectBookKindListAll.mycur; --定义行类型 pdtrow BookKindList%rowtype; begin --执行存储过程 pkgSelectBookKindListAll.procSelectBookKindListAll(cur_return); --遍历游标中的数据 LOOP --取当前行数据存入pdtrow FETCH cur_return INTO pdtrow; --如果未获取数据就结束循环 EXIT WHEN cur_return%NOTFOUND; --输出获取到的数据 DBMS_OUTPUT.PUT_LINE (pdtrow.BookKindID||','||pdtrow.BookKindName); END LOOP; CLOSE cur_return; end;
csharp code:
/// <summary> /// 20160918 涂聚文 /// Geovin Du /// </summary> public class BookKindListDAL : IBookKindList { //private static string connectionString =@"DATA SOURCE=oracle11g;USER ID=geovin;password=geovindu;"; ///<summary> /// 追加记录 ///</summary> ///<param name="BookKindListInfo"></param> ///<returns></returns> public int InsertBookKindList(BookKindListInfo bookKindList) { int ret = 0; try { OracleParameter[] par = new OracleParameter[]{ new OracleParameter("temTypeName",OracleDbType.NVarchar2,1000), new OracleParameter("temParent",OracleDbType.Int32,4), }; par[0].Value = bookKindList.BookKindName; par[0].Direction = ParameterDirection.Input; par[1].Value = bookKindList.BookKindParent; par[1].Direction = ParameterDirection.Input; ret = OracleHelper.ExecuteSql("proc_Insert_BookKindList", CommandType.StoredProcedure, par); } catch (OracleException ex) { throw ex; } return ret; } /// <summary> /// 追加记录返回 /// </summary> /// <param name="authorList"></param> /// <param name="authorID"></param> /// <returns></returns> public int InsertBookKindOutput(BookKindListInfo bookKindList, out int bookKindLID) { bookKindLID = 0; int ret = 0; try { OracleParameter[] par = new OracleParameter[]{ new OracleParameter("temTypeName",OracleDbType.NVarchar2,1000), new OracleParameter("temParent",OracleDbType.Int32,4), new OracleParameter("temId",OracleDbType.Int32,4), }; par[0].Value = bookKindList.BookKindName; par[0].Direction = ParameterDirection.Input; par[1].Value = bookKindList.BookKindParent; par[1].Direction = ParameterDirection.Input; par[2].Direction = ParameterDirection.Output; ret = OracleHelper.ExecuteSql("proc_Insert_BookKindOut", CommandType.StoredProcedure, par); if (ret > 0) { bookKindLID =int.Parse(par[2].Value.ToString()); } } catch (OracleException ex) { throw ex; } return ret; } ///<summary> ///修改记录 ///涂聚文 20160920 ///</summary> ///<param name="BookKindListInfo"></param> ///<returns></returns> public int UpdateBookKindList(BookKindListInfo bookKindList) { int ret = 0; try { OracleParameter[] par = new OracleParameter[]{ new OracleParameter("p_id",OracleDbType.Int32,4), new OracleParameter("p_name",OracleDbType.NVarchar2,1000), new OracleParameter("p_parent",OracleDbType.Int32,4), new OracleParameter("p_code",OracleDbType.Varchar2,1000), }; par[0].Value = bookKindList.BookKindID; par[0].Direction = ParameterDirection.Input; par[1].Value = bookKindList.BookKindName; par[1].Direction = ParameterDirection.Input; par[2].Value = bookKindList.BookKindParent; par[2].Direction = ParameterDirection.Input; par[3].Value = bookKindList.BookKindCode; par[3].Direction = ParameterDirection.Input; ret = OracleHelper.ExecuteSql("procUpdateBookKindList", CommandType.StoredProcedure, par); // ret = 1; } catch (OracleException ex) { throw ex; } return ret; } ///<summary> /// 删除记录 ///</summary> ///<param name="bookKindIDInfo"></param> ///<returns></returns> public bool DeleteBookKindList(int bookKindID) { bool ret = false; try { OracleParameter par = new OracleParameter("p_BookKindID", bookKindID); par.Direction = ParameterDirection.Input; int temp = 0; temp = OracleHelper.ExecuteSql("procDeleteBookKindList", CommandType.StoredProcedure, par); if (temp != 0) { ret = true; } } catch (OracleException ex) { throw ex; } return ret; } ///<summary> /// 查询记录 ///</summary> ///<param name="bookKindIDInfo"></param> ///<returns></returns> public BookKindListInfo SelectBookKindList(int bookKindID) { BookKindListInfo bookKindList = null; try { OracleParameter[] par = new OracleParameter[]{ new OracleParameter("p_id",OracleDbType.Int32,4), new OracleParameter("p_cur",OracleDbType.RefCursor), }; par[0].Value = bookKindID; par[0].Direction = ParameterDirection.Input; par[1].Direction = ParameterDirection.Output; using (OracleDataReader reader = OracleHelper.GetReader("procSelectBookKindList", CommandType.StoredProcedure, par)) //proc_Select_BookKindList 提示名称过长Oracle { if (reader.Read()) { bookKindList = new BookKindListInfo(); bookKindList.BookKindID = (!object.Equals(reader["BookKindID"], null)) ? (decimal)reader["BookKindID"] : 0; bookKindList.BookKindName = (!object.Equals(reader["BookKindName"], null)) ? (string)reader["BookKindName"] : ""; bookKindList.BookKindParent = (!object.Equals(reader["BookKindParent"], null)) ? (decimal)reader["BookKindParent"] : 0; } } } catch (OracleException ex) { throw ex; } return bookKindList; } ///<summary> /// 查询所有记录 ///</summary> ///<returns></returns> public List<BookKindListInfo> SelectBookKindListAll() { List<BookKindListInfo> list = new List<BookKindListInfo>(); BookKindListInfo bookKindList = null; try { //定义参数,注意参数名必须与存储过程定义时一致,且类型为OracleType.Cursor OracleParameter cur_set = new OracleParameter("cur_return", OracleDbType.RefCursor); //设置参数为输出类型 cur_set.Direction = ParameterDirection.Output; // //OracleHelper.ExecuteReader(connectionString, CommandType.StoredProcedure, "pkg_Select_BookKindListAll.proc_Select_BookKindListAll", cur_set) using (OracleDataReader reader = OracleHelper.GetReader("pkg_Select_BookKindListAll.proc_Select_BookKindListAll", CommandType.StoredProcedure, cur_set)) { while (reader.Read()) { bookKindList = new BookKindListInfo(); string s = reader["BookKindID"].ToString(); bookKindList.BookKindID = (!object.Equals(reader["BookKindID"], null)) ? (decimal)reader["BookKindID"] : 0; bookKindList.BookKindName = (!object.Equals(reader["BookKindName"], null)) ? (string)reader["BookKindName"] : ""; bookKindList.BookKindParent = (!object.Equals(reader["BookKindParent"], null)) ? (decimal)reader["BookKindParent"] : 0; list.Add(bookKindList); } } } catch (OracleException ex) { throw ex; } return list; } ///<summary> /// 查询所有记录 ///</summary> ///<returns></returns> public DataTable SelectBookKindListDataTableAll() { DataTable dt = new DataTable(); try { //定义参数,注意参数名必须与存储过程定义时一致,且类型为OracleType.Cursor OracleParameter cur_set = new OracleParameter("cur_return", OracleDbType.RefCursor); //设置参数为输出类型 cur_set.Direction = ParameterDirection.Output; //添加参数 //comm.Parameters.Add(cur_set); using (DataTable reader = OracleHelper.GetTable("pkgSelectBookKindListAll.procSelectBookKindListAll", CommandType.StoredProcedure, cur_set)) { dt = reader; } } catch (OracleException ex) { throw ex; } return dt; } /// <summary> /// 填充dataSet数据集-Oracle库 /// </summary> /// <param name="pindex">当前页</param> /// <param name="psql">执行查询的SQL语句</param> /// <param name="psize">每页显示的记录数</param> /// <returns></returns> private bool gridbind(int pindex, string psql, int psize) { OracleConnection conn = new OracleConnection(); OracleCommand cmd = new OracleCommand(); OracleDataAdapter dr = new OracleDataAdapter(); conn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ConnectionString; cmd.Connection = conn; cmd.CommandType = CommandType.StoredProcedure; conn.Open(); cmd.CommandText = "DotNet.DotNetPageRecordsCount"; cmd.Parameters.Add("psqlcount", OracleDbType.Varchar2).Value = psql; cmd.Parameters.Add("prcount", OracleDbType.Int32).Direction = ParameterDirection.Output; cmd.ExecuteNonQuery(); string PCount = cmd.Parameters["prcount"].Value.ToString(); cmd.Parameters.Clear(); cmd.CommandText = "DotNet.DotNetPagination"; if (pindex != 0) { cmd.Parameters.Add("pindex", OracleDbType.Int32).Value = pindex - 1; } else { cmd.Parameters.Add("pindex", OracleDbType.Int32).Value = pindex; } cmd.Parameters.Add("psql", OracleDbType.Varchar2).Value = psql; cmd.Parameters.Add("psize", OracleDbType.Int32).Value = psize; cmd.Parameters.Add("v_cur", OracleDbType.RefCursor).Direction = ParameterDirection.Output; cmd.Parameters.Add("pcount", OracleDbType.Int32).Direction = ParameterDirection.Output; dr.SelectCommand = cmd; try { DataSet ds = new DataSet(); dr.Fill(ds); //显示页码条的状态 //showStatus(Convert.ToInt32(cmd.Parameters["pindex"].Value + 1, // Convert.ToInt32(cmd.Parameters["pcount"].Value), // Convert.ToInt32(PCount)); for (int i = 0; i < ds.Tables.Count; i++) { //把数据行为零的表删除 if (ds.Tables[i].Rows.Count == 0) ds.Tables.Remove(ds.Tables[i].TableName); } } catch (Exception ex) { Console.WriteLine(ex.Message); return false; } conn.Close(); return true; } }