行转列:源表: 方法1:case when select y,sum(case when q=1 then amt end) q1,sum(case when q=2 then amt end) q2,sum(case when q=3 then amt end) q3,sum(case when q=4 then amt end) q4from test04 group by y; 效果: 方法2:decade(decode(字段,v1(字段值或运算后的值),retu1(字段值或运算后的值与v…

数据库中原先如图: 现在要吧WHMM行转列: conncect by用于确定列的个数…

包头 create or replace package pro_test as TYPE out_cursor IS REF CURSOR; procedure Alarm_ContentsByTime( p_StartTime varchar2, ----开始时间 p_EndTime varchar2, ----结束时间 io_cursor in OUT out_cursor ); end pro_test; 包体 create or replace package body pro_tes…

--Type CREATE OR REPLACE TYPE zh_concat_im AUTHID CURRENT_USER AS OBJECT ( CURR_STR clob, STATIC FUNCTION ODCIAGGREGATEINITIALIZE(SCTX IN OUT zh_concat_im) RETURN NUMBER, MEMBER FUNCTION ODCIAGGREGATEITERATE(SELF IN OUT zh_concat_im, P1 IN VARCHAR2)…

--方法一  匿名块中直接 dbms_output输出declare  v_sql    varchar2(200);  v_cursor sys_refcursor;  type v_type is record(    n1 varchar2(30));  v_rows v_type;begin  v_sql := ' select substr(tax_organ_name,1,2)   from sk_tax_organ  n where n.up_tax_organ=''cde5a0d…

--场景1: A B a a a b b 希望实现如下效果: a ,, b , create table tmp as B from dual union all B from dual union all B from dual union all B from dual union all B from dual; .方法1:listagg --listagg() + group by: 推荐使用 select a,listagg(b,',') within group (order by…

table: <table style="width:100%" id="appDatas"></table> 1. var tables = []; var len = data.length; var rowNum = 3; var sumRows = len % rowNum; var sumRowMod = len / rowNum; var rows = (sumRows == 0 ? sumRowMod : sumRowMod +…

工作过程中需要将查询的数据分组并显示在一行.以往的工作经验,在sql server中可以用for xml path来实现. 现提供Oracle数据库的行转列方式 oracle11g官方文档简介如下: LISTAGG Function The LISTAGG function orders data within each group based on the ORDER BY clause and then concatenates the values of the measure colum…

create table demo(id int,name varchar(20),nums int); ---- 创建表insert into demo values(1, '苹果', 1000);insert into demo values(2, '苹果', 2000);insert into demo values(3, '苹果', 4000);insert into demo values(4, '橘子', 5000);insert into demo values(5, '橘子',…

一个简单的行列转换例子,原始数据. create table temp_cwh_student ( name ), subject ), score ) ) select * from temp_cwh_student -- 行转列 select name as "姓名", end ) as "语文", end ) as "数学", end ) as "英语", sum(score) as "总分", av…