成人午夜视频全免费观看高清-秋霞福利视频一区二区三区-国产精品久久久久电影小说-亚洲不卡区三一区三区一区

12CSQL-TOP

在剛才的基礎(chǔ)上。


insert into look values (2,'a',100);
insert into look values (3,'a',100);
insert into look values (4,'a',100);
insert into look values (5,'a',100);
insert into look values (6,'a',100);
insert into look values (7,'a',100);
insert into look values (8,'a',100);
insert into look values (9,'a',100);
insert into look values (10,'a',100);
insert into look values (11,'a',100);
insert into look values (12,'a',100);
insert into look values (13,'a',100);
insert into look values (14,'a',100);
insert into look values (15,'a',100);
insert into look values (16,'a',100);
insert into look values (17,'a',100);
insert into look values (18,'a',100);
insert into look values (19,'a',100);
insert into look values (20,'a',100);


SELECT * FROM look ORDER BY id DESC FETCH FIRST 3 ROWS ONLY;

SQL> SELECT * FROM look ORDER BY id DESC FETCH FIRST 3 ROWS ONLY;


ID NAME   MONEY
---------- ---------- ----------
20 a     100
19 a     100
18 a     100

排名前三的


SQL> SELECT * FROM look  ORDER BY id DESC FETCH FIRST 10 PERCENT ROWS ONLY;

ID NAME   MONEY
---------- ---------- ----------
20 a     100
19 a     100

排名前10%的

SQL> SELECT * FROM look  ORDER BY id DESC OFFSET 5 ROWS FETCH NEXT 5 ROWS ONLY;

ID NAME   MONEY
---------- ---------- ----------
15 a     100
14 a     100
13 a     100
12 a     100
11 a     100
忽略前5條記錄并會顯示表的下5條記錄:

SELECT * FROM look ORDER BY id FETCH FIRST 5 PERCENT ROWS WITH TIES;  

ID NAME   MONEY
---------- ---------- ----------
1 a     100




標(biāo)題名稱:12CSQL-TOP
URL網(wǎng)址:http://jinyejixie.com/article8/iejeip.html

成都網(wǎng)站建設(shè)公司_創(chuàng)新互聯(lián),為您提供移動網(wǎng)站建設(shè)、網(wǎng)站維護(hù)電子商務(wù)、ChatGPT企業(yè)建站、網(wǎng)站設(shè)計公司

廣告

聲明:本網(wǎng)站發(fā)布的內(nèi)容(圖片、視頻和文字)以用戶投稿、用戶轉(zhuǎn)載內(nèi)容為主,如果涉及侵權(quán)請盡快告知,我們將會在第一時間刪除。文章觀點不代表本網(wǎng)站立場,如需處理請聯(lián)系客服。電話:028-86922220;郵箱:631063699@qq.com。內(nèi)容未經(jīng)允許不得轉(zhuǎn)載,或轉(zhuǎn)載時需注明來源: 創(chuàng)新互聯(lián)

成都網(wǎng)站建設(shè)
堆龙德庆县| 昭平县| 泽普县| 丰都县| 新河县| 逊克县| 饶阳县| 湘潭县| 福州市| 黄龙县| 阳信县| 乌苏市| 竹山县| 甘泉县| 阜阳市| 临朐县| 屏边| 望奎县| 嘉峪关市| 辉南县| 施甸县| 元朗区| 金湖县| 锦州市| 闵行区| 达拉特旗| 新化县| 河池市| 噶尔县| 罗平县| 百色市| 莱西市| 克东县| 霍城县| 忻城县| 宿州市| 桓仁| 荔浦县| 沾化县| 离岛区| 永安市|