Order by create_time desc limit 1

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WebNov 13, 2024 · SELECT * FROM student ORDER BY ID; 1 2 ORDER BY 表示对结果集的ID列进行排序，ORDER BY 默认从小到大排序，运行以上语句，结果如下：可以看到，student表按照ID列从小到大进行排序了。 DESC 如果需要对其进行从大到小排序，那么需要使用desc了（默认是从小到大，如果添加asc也是从小到大的排序） SELECT * FROM student ORDER … WebI became accustomed to add a LIMIT 1 clause at the end of my SOQL request when I want to request only one record. Even when I don't declare an array as result. For example: Account account = [SELECT Name FROM Account WHERE Id = 'Example' LIMIT 1]; It's just a habit. I was thinking that this was more precise and so maybe faster.

sql order by,desc和limit使用(mysql)_desc limit_1_bit的博 …

WebJul 14, 2015 · Here are my two queries: select sts_in from sta_session where sts_user_id=2006 AND sts_sessid!='0jitkt80gg3avere03tqk4lhi6' order by sts_in desc limit … Web整理数据得时候出现重复数据DELETE FROM t_goods WHERE tid NOT IN ( SELECT t.max_id FROM ( -- 过滤出重复多余的数据 SELECT MAX(tid) AS max_id FROM t_goods where md5_sign is not null GROUP BY title … flushes out

SOQL Performance With LIMIT 1 - Salesforce Stack Exchange

WebApr 30, 2013 · To my surprise, Salesforce did not order the rows correctly - Account # 1 showed higher than Account # 2, even though they were ordered in descending order of create date. Leads me to believe that when two records are created in SF in the same second, the ordering is not predictable. WebOct 12, 2024 · Item creationDate is a number representing the epoch time, or elapsed time since Jan. 1, 1970 in seconds. SQL SELECT f.id, f.creationDate FROM Families f ORDER BY f.creationDate DESC The results are: JSON [ { "id": "AndersenFamily", "creationDate": 1431620472 }, { "id": "WakefieldFamily", "creationDate": 1431620462 } ] WebSep 3, 2024 · 1. By performing the query (or any similar one): SELECT CreatedDate FROM Account ORDER BY CreatedDate DESC LIMIT 1 The results will be similar to: SELECT MAX … flushes only poker

MySQL ORDER BY LIMIT Performance Optimization

LIMIT and ORDER BY in SQL Queries - Public Affairs Data …

WebORDER BY. Use the optional ORDER BY in a SELECT statement of a SOQL query to control the order of the query results, such as alphabetically beginning with z. If records are null, … WebSep 3, 2024 · 1. By performing the query (or any similar one): SELECT CreatedDate FROM Account ORDER BY CreatedDate DESC LIMIT 1 The results will be similar to: SELECT MAX (CreatedDate) FROM Account 2. By performing the query (or any similar one): SELECT CreatedDate FROM Account ORDER BY CreatedDate ASC LIMIT 1 The results will be … flushes slowly and bathtub gurglesWebAug 24, 2024 · To sort in ascending or descending order we can use the keywords ASC or DESC respectively. Syntax: SELECT * FROM table_name ORDER BY column_name ASC DESC //Where table_name: name of the table. column_name: name of the column according to which the data is needed to be arranged. ASC: to sort the data in ascending order. green flag of libya

"http://2015.padjo.org/tutorials/sql-basics/limit-and-order/ " - Order by create_time desc limit 1

Order by create_time desc limit 1

MySQL order by、desc、limt的使用_desc limit_Juily家的小蜜果的 …

WebJan 25, 2024 · Introduction The TOP clause allows us to limit the result set of the queries according to the number of rows or the percentage of rows. In general, the TOP and ORDER BY construction are used together. Otherwise, the TOP clause will return the N number of rows in an uncertain order. WebOct 12, 2024 · Item creationDate is a number representing the epoch time, or elapsed time since Jan. 1, 1970 in seconds. SQL SELECT f.id, f.creationDate FROM Families f ORDER …

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WebCode language: CSS (css) In this syntax, the ORDER BY clause sorts the result set by the sort_expression_1 first, and then sorts the sorted result set by the sort_expression_2.. Note that if you don’t specify the ORDER BY clause, the SELECT statement will not sort the result set. It means that the rows in the result set don’t have a specific order. WebSELECT * LIMIT 1 FROM baby_names; The ORDER BY clause The ORDER BY clause, as you can imagine, let's us specify the sorting order of the returned data rows. The basic syntax is: ORDER BY "some_column_name" Here's a standalone example: SELECT * FROM baby_names ORDER BY count; The truncated results: Sorting in descending order

WebFor Postgres 9.1 or later: CREATE INDEX idx_time_limits_ts_inverse ON time_limits (id_phi, start_date_time, end_date_time DESC); In most cases the sort order of an index is hardly relevant. Postgres can scan backwards practically as fast. But for range queries on multiple columns it can make a huge difference. Closely related: Weblimit in oracle. select top in oracle. select top in oracle 2. As Moneer Kamal said, you can do that simply: SELECT id, client_id FROM order WHERE rownum <= 100 ORDER BY create_time DESC; Notice that the ordering is done after getting the 100 row. This might be useful for who does not want ordering. Update:

WebFeb 7, 2024 · Solution 2 INSERT INTO link_ (duid, domain_id) SELECT IFNULL (duid, 0) + 1 AS duid, 5 FROM link_ WHERE domain_id = 5 ORDER BY duid DESC LIMIT 1; mysql performance myisam query-performance Share Improve this question Follow edited Jan 7, 2024 at 22:23 Community Bot 1 asked Feb 7, 2024 at 2:09 nenad007 153 1 8 Add a comment 3 Answers …

WebSep 1, 2006 · MySQL ORDER BY with LIMIT is the most common use of ORDER BY in interactive applications with large data sets being sorted. On many web sites, you will find top tags, recently registered users, etc – which would often require ORDER BY with LIMIT in the back end. In general this type of ORDER BY looks like SELECT …..

WebThe basic syntax used for writing the ORDER BY DESC clause is as follows : SELECT column_name_1, column_name_2 FROM table_name ORDER BY column_name_1 DESC; The parameters used in the above-mentioned syntax are as follows : column_name_1, column_name_2, …, column_name_n: Columns or fields that have to be selected for the … flushes significatoWebApr 1, 2024 · 原创 mybatis select 语句被莫名拼接了order by create_time desc limit ？工具虽好用，但一定要按规范使用！ 2024-04-04 11:35:54 184. centos及redhat linux升级openssh7.9-8.0-8.1升级.zip. 主要用于升级redhat及centos 6/7版本的openssh离线自动升级。已测试redhat6.5和7.3，及centos6/7。 ... green flag overseas coverWebIt will still be sorted in descending order, and we are not satisfied with that, so we ask mysql to sort it one more time. Now we have the newest result on the last row. select t.article from (select article, publish_date from table1 order by publish_date desc limit 10) t order by t.publish_date asc; green flag on the beachWebSep 7, 2016 · 1 Answer. Sorted by: 1. The problem was a missing comma after the first DESC, the correct statement is. SELECT Position INTO lastPosition FROM ranking ORDER BY ranking.Time DESC, ranking.Position DESC LIMIT 1; as noticed by @Solarflare. flushes the stream output bufferWebApr 8, 2024 · Lista Terremoti aggiornata in tempo reale » INGV Osservatorio Nazionale Terremoti. Mondo. (Ordinamento Tempo Decrescente) Data e Ora (. IT. Italia) Mag nitudo. Zona. Profondità. flushes toys couponWebSELECT `ProductCategory`.`id`, `ProductCategory`.`name` FROM `okashi-matsunoya_db01`.`product_categories` AS `ProductCategory` WHERE 1 = 1 ORDER BY `ProductCategory`.`display_order` DESC, `ProductCategory`.`id` ASC\/td> green flag parts and garage coverWebMar 1, 2024 · sql order by,desc和limit使用 (mysql) 在此我们要进行排序，按降序排序，就是从大到小。. 然后我们只要查询前2条数据。. 意思就是我们需要把这个表从大到小排序 … flushes the stream definition