from user_tab_columns where table_name='APP_USER'; 利用系统表方式查询 [sql]view plaincopyprint? select * from user_tab_columns Oracle 11g 行列互换 pivot 和 unpivot 说明 在Oracle11g中,Oracle 又增加了2个查询:pivot(行转列) 和unpivot(列转行) 参考:http://blog.csdn.NET/tianlesoftware/article/d...
函数PIVOT、UNPIVOT转置函数实现行转列、列转行,效果如下图所示:1.PIVOT为行转列,从图示的左边到右边2.UNPIVOT为列转行,从图示的右边到左边3.左边为纵表,结构简单,易扩展4.右边为横表,展示清晰,方便查询5.很多时候业务表为纵表,但是统计分析需要的结果如右边的横表,这时候就需要用到转置函数了 示例图表: Pivo...
select t_bcr,t_bcrq,t_sjzfje ,t_qs,t_group from lichtest_tb_a )t1pivot(min(t_sjzfje) for t_qsin(第一期,第二期,第三期) )p -- povot 多值 点击查看语句 select * from ( select t_bcr,t_bcrq,t_sjzfje,t_sjzfrq ,t_qs,t_group from lichtest_tb_a )t1pivot(max(t_sjzfje...
The pivot_clause letsyou write cross-tabulation queries that rotate rows into columns, aggregatingdata in the process of the rotation. The output of a pivot operation typicallyincludes more columns and fewer rows than the starting data set.The pivot_clause performs the following steps: --pivot 通...
Oracle SQL - pivoting one row of several columns into one column of several rows Oracle Tips by Burleson Consulting There are many ways to use Oracle to pivot column data for display on a single row: 0 - Download SQL into Excel spreadsheet pivot table ...
Oracle has the ability to create a result set that transposes or pivots columns and rows to provide a summary. This is done using the SQL PIVOT keyword. This keyword was introduced in Oracle 11g. This keyword is applied to aSELECT statement, and looks like this: ...
5 rows selected. The pivot_clause letsyou write cross-tabulation queries that rotate rows into columns, aggregatingdata in the process of the rotation. The output of a pivot operation typicallyincludes more columns and fewer rows than the starting data set.The pivot_clause performs the following ...
Thepivot_clauseletsyou write cross-tabulation queries that rotate rows into columns, aggregatingdata in the process of the rotation. The output of a pivot operation typicallyincludes more columns and fewer rows than the starting data set.Thepivot_clauseperforms the following steps: ...
编写一个 SQL 查询来重新格式化表,使得新的表中有一个部门 id 列和一些对应 每个月 的收入(revenue)列。 查询结果格式如下面的示例所示: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Department 表:+---+---+---+|id|revenue|month|+---+---+---+|1|8000|Jan||2|9000|Jan||3|10000|Fe...
二是PIVOT函数 我们用第二种 代码语言:javascript 代码运行次数:0 运行 AI代码解释 SELECT*FROMTEST_PIVOTPIVOT(SUM(SCORE)FORCOURSEIN('英语','数学','语文'))B 这些中文字段名比较刺眼,王五的 英语列和 数学列也为空不好看 我们这边强壮下sql 代码语言:javascript ...