query spf record

Mysql complex query statement, the record used in the work is 1 deduplicated query Select distinct id from user_info where xxxxxx 2 Sort by group query Group by itself has no sorting function, which may be an imperfect part of mysql, but we can do this Select attack_id, time from (select * from attack_log where (

When using Yii's active Record to get query results, the returned result set is an object type, and sometimes it is desirable to be able to return to the array for data processing convenience. For example, the following method:when you return a result, use the $post->attributes; directly. If you return multiple results, there are 2 ways to return an array of objects: Copyright NOTICE: This article for Bo Ma

Oracle query: retrieve the first record in each groupGroup by type field, sort by code, and retrieve the first record in each group Method 1: Select Type, min (CODE) from group_infoGroup by type; Note: The columns after the SELECT statement must be in the group by clause or be included by an aggregate function. Otherwise, a syntax error occurs. Method 2: Sel

Sometimes, we need to query a record. Who was it shared with? What do you do?The first approach: the way of SQLSELECT * from principalobjectaccess where objectid = ' 522626b1-d10c-e411-80ff-00155d002f02 'Select U.fullname,sup. Systemuserid,poa. Objectid,accessrightsmaskFrom Principalobjectaccess POA InnerJoin Systemuserprincipals sup on POA. Principalid = sup. PrincipalidINNER JOIN SystemUserBase Uon SUP. S

This article mainly introduces the implementation method of the second-to-last record query in MySQL. This article provides code examples. the important part has been highlighted. if you need a friend, you can refer to it and sometimes use the second-to-last record query. The code is as follows: Last = HolderChange

build MyBatis development environment, realize user table record number query 1, create project in MyEclipse, import MyBatis jar Package 2. Create MyBatis configuration file mybatis-Config database information mybatis-config fileXML version= "1.0" encoding= "UTF-8"?>DOCTYPE configurationpublic "-//mybatis.org//dtd Config 3.0//en" "Http://mybatis.org/dtd/mybatis-3-config.dtd" >through this configuration f

Usually we use the following SQL to make a list SELECT COUNT (*) from the users WHERE name like ' a% ';SELECT name, email from the users WHERE name like ' a% ' LIMIT 10; But starting with Mysql4.0.0, we can choose to use a different approach: SELECT sql_calc_found_rows name, email from the users WHERE name like ' a% ' LIMIT 10;SELECT found_rows (); Where Sql_calc_found_rows tells MySQL to record the number of rows processed

(A.PEOPLEID,A.SEQ) in (select Peopleid,seq from Vitae GROUP by Peopleid,seq has COUNT (*) > 1)and rowID not in (select min (rowid) from Vitae GROUP by PEOPLEID,SEQ have Count (*) >1) 5, look for redundant records in the table (multiple fields), does not contain the smallest ROWID records Copy Code code as follows: SELECT * FROM Vitae a where (A.PEOPLEID,A.SEQ) in (select Peopleid,seq from Vitae GROUP by Peopleid,seq has COUNT (*) > 1)and rowID not in (select mi

Tutorial | 10 Days of learning Previous section: writing a record 　　Learning Purpose: Learn the basic operation of database--query record On the fourth day we use one of the following programs: Set Conn=server.createobject ("Adodb.connection")Conn.Open "Driver={microsoft Access Driver (*.mdb)};d bq=" server.mappath ("Data/guestbook.mdb")Exec= "SELECT * FROM Gues

Mysql provides a complete set of logging configuration items, but many of them are disabled by default. I wonder why mysql does not have query listening like SQL Server. After searching for information, it is found that Mysql can also implement the SQL statement for record query. The method is to modify the my. cnf configuration file (my. ini for windows) Add t

MYSQL uses select to query the record method of a field that contains strings separated by commas (,). First, create a string separated by commas. Create table test (id int (6) not null AUTO_INCREMENT, primary key (id), pname VARCHAR (20) not null, pnum VARCHAR (50) not null ); insert into test (pname, pnum) VALUES ('product 1', '1, 2'); insert into test (pname, pnum) VALUES ('product 2', '2, 4, 7 '); inser

Delete User (including ad group) directly from site collection, unable to view related records from audit log, found today can query related records through DB, the event is recorded in the Eventcache table of the db, where EventType = ' 1048576 ' indicates that the user (including ad group) is deleted from the site collection;Therefore, if you have lost user rights and cannot find records in audit log, you can use this method to