Oracle存储过程(分页、模糊查找、排序、按字段区间查找)etc.以及JAVA代码
-- 先创建包 CREATE OR REPLACE PACKAGE mypackage AS TYPE mycursor IS REF CURSOR; END;
--创建分页存储过程 CREATE OR REPLACE PROCEDURE splitpage ( v_tableName IN VARCHAR2, v_pageSize IN NUMBER, v_pageNow IN NUMBER, v_myTotalRows OUT NUMBER, v_myTotalPageCount OUT NUMBER, v_cursor OUT mypackage.mycursor ) IS v_sql VARCHAR2(1000); v_begin NUMBER:=(v_pageNow-1)*v_pageSize+1; v_end NUMBER:=v_pageNow*v_pageSize; BEGIN v_sql:='select * from( select rownum rn,a1.* from( select * from ' ||v_tableName|| ') a1 where rownum<='||v_end|| ') where rn>='||v_begin||''; OPEN v_cursor FOR v_sql; v_sql:='select count(*) from ' ||v_tableName||''; EXECUTE IMMEDIATE v_sql INTO v_myTotalRows; IF MOD(v_myTotalRows,v_pageSize)=0 THEN v_myTotalPageCount:=v_myTotalRows/v_pageSize; ELSE v_myTotalPageCount:=v_myTotalRows/v_pageSize+1; END IF; END;
public YOURClass getSplitPage(int targetPage, int eachpagenum){ Connection conn = DBConnection.getConn();//获取Oraccle 的Connection //参数位置要与存储过程对应,其余用法跟pstmt类似 String sql = "{call splitpage(?,?,?,?,?,?)}"; try{ cs = conn.prepareCall(sql); cs.setString(1,"tablename"); // the name of db's table cs.setInt(2,eachpagenum); // Each page record numbers cs.setInt(3,targetPage); // Target page number // register the output cs.registerOutParameter(4,OracleTypes.NUMBER); cs.registerOutParameter(5,OracleTypes.NUMBER); cs.registerOutParameter(6,OracleTypes.CURSOR); cs.execute(); // get the value from CallableStatement totalRowsCount = cs.getInt(4); // 获取总记录数 totalPagesCount = cs.getInt(5);// 获取总页数 ResultSet rs = (ResultSet) cs.getObject(6); while(rs.next()){ // 从rs中读取数据 } return YOURClass; }catch (SQLException e){ e.printStackTrace(); } return null; }
下面就不给出JAVA代码了,因为都是类似的。用法跟pstmt一样,只是多了注册输出变量。
--带模糊查询的分页 CREATE OR REPLACE PROCEDURE splitpagefuzzy ( v_tableName IN VARCHAR2, v_colName IN VARCHAR2, v_keyword IN VARCHAR2, v_pageSize IN NUMBER, v_pageNow IN NUMBER, v_myTotalRows OUT NUMBER, v_myTotalPageCount OUT NUMBER, v_cursor OUT mypackage.mycursor ) IS v_sql VARCHAR2(1000); v_begin NUMBER:=(v_pageNow-1)*v_pageSize+1; v_end NUMBER:=v_pageNow*v_pageSize; BEGIN v_sql:='select * from( select rownum rn,a1.* from( select * from ' ||v_tableName||' where '||v_colName||' like ''%'|| v_keyword ||'%'' '|| ') a1 where rownum<='||v_end|| ') where rn>='||v_begin||''; OPEN v_cursor FOR v_sql; v_sql:='select count(*) from ' ||v_tableName||''; EXECUTE IMMEDIATE v_sql INTO v_myTotalRows; IF MOD(v_myTotalRows,v_pageSize)=0 THEN v_myTotalPageCount:=v_myTotalRows/v_pageSize; ELSE v_myTotalPageCount:=v_myTotalRows/v_pageSize+1; END IF; END;
--带模糊查询带排序的分页 CREATE OR REPLACE PROCEDURE splitpagefuzzyorder ( v_tableName IN VARCHAR2, v_colName IN VARCHAR2, v_keyword IN VARCHAR2, v_colOrder IN VARCHAR2, v_orderType IN VARCHAR2, v_pageSize IN NUMBER, v_pageNow IN NUMBER, v_myTotalRows OUT NUMBER, v_myTotalPageCount OUT NUMBER, v_cursor OUT mypackage.mycursor ) IS v_sql VARCHAR2(1000); v_begin NUMBER:=(v_pageNow-1)*v_pageSize+1; v_end NUMBER:=v_pageNow*v_pageSize; BEGIN v_sql:='select * from( select rownum rn,a1.* from( select * from ' ||v_tableName||' where '||v_colName||' like ''%'|| v_keyword ||'%'' '|| ' order by ' ||v_colOrder||' '||v_orderType|| ') a1 where rownum<='||v_end|| ') where rn>='||v_begin||''; OPEN v_cursor FOR v_sql; v_sql:='select count(*) from ' ||v_tableName||''; EXECUTE IMMEDIATE v_sql INTO v_myTotalRows; IF MOD(v_myTotalRows,v_pageSize)=0 THEN v_myTotalPageCount:=v_myTotalRows/v_pageSize; ELSE v_myTotalPageCount:=v_myTotalRows/v_pageSize+1; END IF; END;
--带模糊查询带排序带时间段的分页 CREATE OR REPLACE PROCEDURE splitpagefuzzyorderdate ( v_tableName IN VARCHAR2, v_colName IN VARCHAR2, v_keyword IN VARCHAR2, v_colOrder IN VARCHAR2, v_orderType IN VARCHAR2, v_colDate IN DATE; v_dateBegin IN DATE, v_dateEnd IN DATE, v_pageSize IN NUMBER, v_pageNow IN NUMBER, v_myTotalRows OUT NUMBER, v_myTotalPageCount OUT NUMBER, v_cursor OUT mypackage.mycursor ) IS v_sql VARCHAR2(1000); v_begin NUMBER:=(v_pageNow-1)*v_pageSize+1; v_end NUMBER:=v_pageNow*v_pageSize; BEGIN v_sql:='select * from( select rownum rn,a1.* from( select * from ' ||v_tableName||' where '||v_colName||' like ''%'|| v_keyword ||'%'' '|| ' and ' v_colDate||' between ' v_dateBegin ||' and '||v_dateEnd || ' order by ' ||v_colOrder||' '|| ') a1 where rownum<='||v_end|| ') where rn>='||v_begin||''; OPEN v_cursor FOR v_sql; v_sql:='select count(*) from ' ||v_tableName||''; EXECUTE IMMEDIATE v_sql INTO v_myTotalRows; IF MOD(v_myTotalRows,v_pageSize)=0 THEN v_myTotalPageCount:=v_myTotalRows/v_pageSize; ELSE v_myTotalPageCount:=v_myTotalRows/v_pageSize+1; END IF; END;
这几个下来想必大家也都清楚该怎么做了。如果需要添加什么条件,只需要在最内层字句中添加相应语句。