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MySQL Single order over 6 products and the amount of >=300 gift coupon _20161103

='Jinan' andA1. Order Date>=" .- One- Geneva" andA1. Order Date" .- One- ." andA1. Amount>0 and(A1. Product Name not like"%Hat%"ORA1. Product Name not like "%Bath towel%" ) GROUP byA1. Order ID,A1. Product ID) asA2 Left JOIN(#未使用优惠券ID 908 to 913 of user ordersSELECTA3. User Id,a3. Order number, A3. Coupon id,a3. Coupon name,SUM(coupon amount) asCoupon Amount from' A016_order_customercoupon_xref ' asA3WHEREA3. City=Jinan andA3. Use time>=" .- One- Geneva" andA3. Use time" .-

Oracle database Merge Row Records, Wmsys. The use of Wm_concat functions

Wmsys.wm_concat () SELECT from WHERE t1.id=GROUP by T1.cname,t1.id; Method Two: Use Sys_connect_by_path SelectID, CName,LTrim(Max(Sys_connect_by_path (PName,',')),',') from(SelectRow_number () Over(PARTITION byT1.idORDER byCName) r,t1.*, T2.pname fromTab_name T1, Tab_name2 T2whereT1.id=t2.id) Start withR=1CONNECT byPrior R=R-1 andPrior ID=IdGroup byID, CNameOrder byId Method Three: Use the Custom function Create or Replace functionColtorow (Midi

SQL statement of one of the IT Ninja Turtles-connecting all values of the same field, Ninja Turtles SQL

SQL statement of one of the IT Ninja Turtles-connecting all values of the same field, Ninja Turtles SQL Oracle can use SYS_CONNECT_BY_PATH string to aggregate functions: select ltrim (MAX (SYS_CONNECT_BY_PATH (productname, ','), ',') AS productnameFROM (SELECT '1' as id, productname, ROW_NUMBER () OVER (partition by '1' order by productname) AS curr, ROW_NUMBER () OVER (partition by '1' order by productname) -1 AS prev FROM products -- where condition order by productname) start with curr = 1 c

Mysql group function count usage

SELECTd. department, COUNT (CASEe. sexWHENe. sex #39; f #39; ANDp. position! #39; supervisor #39; THENp. idEND) fq, COUNT (CASEe. sexWHENe. sex #39; f #39; ANDp. position #39; supervisor #39; THENp. idEND) fz, COUNT (CASEe. sexWHENe. sex #39; m #39; ANDp. positi mysqlcount SELECT d. department,COUNT (CASE e. sex WHEN e. sex = 'f' AND p. position! = 'Supervisor 'THEN p. id END) fq,COUNT (CASE e. sex WHEN e. sex = 'f' AND p. position = 'supervisor 'THEN p. id END) fz,COUNT (CASE e.

Linux Common Command collation

...Function: Change the owner of a file or folderParameter format:User: The user of the new file owner idGROUP: The user group of the new file owner (group)C: If the file owner has changed, the change action is displayed-F: Do not display an error message if the owner of the file cannot be changed-H: Changes to the link only, not the file that the link really points to-V: Show details of owner changes-R: Same owner change for all files in the current

"Go-Organize" in Eclipse, MAVEN project creation

1. IntroductionThis article describes how to use the MAVEN plug-in for Eclipse to create a simple MAVEN project and run the MAVEN command in Eclipse.2. Steps1) Open the New Project dialog box and select Maven Project (File->new->object->maven->maven project)2) It's not good to choose Simple Project, so you can choose archetype3) Select the Archetype named QuickStart and click NextArchetype: Project skeleton, project directory and file structure4) Enter Group Id,artifact ID information, version d

Linux process commands

...Function: Change the owner of a file or folderParameter format:User: The user of the new file owner idGROUP: The user group of the new file owner (group)C: If the file owner has changed, the change action is displayed-F: Do not display an error message if the owner of the file cannot be changed-H: Changes to the link only, not the file that the link really points to-V: Show details of owner changes-R: Same owner change for all files in the current

How Linux views common commands such as process, kill process, start process, etc.

folderParameter format:User: The user of the new file owner idGROUP: The user group of the new file owner (group)C: If the file owner has changed, the change action is displayed-F: Do not display an error message if the owner of the file cannot be changed-H: Changes to the link only, not the file that the link really points to-V: Show details of owner changes-R: Same owner change for all files in the current directory and subdirectories (i.e., one by

How Linux views common commands such as process, kill process, start process, etc.

folderParameter format:User: The user of the new file owner idGROUP: The user group of the new file owner (group)C: If the file owner has changed, the change action is displayed-F: Do not display an error message if the owner of the file cannot be changed-H: Changes to the link only, not the file that the link really points to-V: Show details of owner changes-R: Same owner change for all files in the current directory and subdirectories (i.e., one by

Common command and usage of file management under Linux system

permission.Put the meter:User: New file owner's user idgroup: The user group of the new file owner (group)-C: If the file owner has changed, the change action is not displayed-F: If the file owner cannot be changed, do not display the error message-H: Only the link is changed More, not the one that link really points to.-V: Shows the details of the owner change-r: the same owner change (that is, one-by-one change) for all files in the current directo

How to calculate columns and averages in SQL Server

subtotalfrom sales.customer INNER JOIN Sales.SalesOrderHeader On Sales.SalesOrderHeader.Customer ID = Sales.Customer.CustomerID INNER JOIN sales.salesorderdetail on Sales.SalesOrderDetail.SalesOrder ID = Sales.SalesOrderHeader.SalesOrderIDGROUP by Sales.Customer.CustomerID, Sales.SalesOrderHeader.SalesOrder idhaving SUM (linetotal) > 25000.00ORDER by Sales.Customer.CustomerID, SalesOrderID; List A: Suppose you want to know the average sales for al

MySQL Complex query

AllSelect NULL,user_id, Realname, Ifnull (NULL,'Total') ,Count(*) as Number,sum(Total_amount) asTotal_amount from(SelectOrder1.user_id as user_id, product_id, Product_Name,Count(Op. Number) as Number, sum(Total_amount+ Convert(Point_total_amount/Ten,decimal)) asTotal_amount,sum(Point_total_amount) asPoint_total_amount from (Select * fromOrderswhere(Status= 'completed' and(Refund_statusinch('refunded','not_apply')))orRefund_status= 'refunded') asOrder1 Left JoinOrder_products asOp onop.or

MySQL Learning _ View the sales of the warehouse products _20161102

, b2. Unit, B2. Packing unit, B2. Conversion rate, date (B2. Dates) asonline and in stock date from' A014_stock_daily ' asB2WHEREB2. City=Beijing andDate (B2. Dates)=Date_add (current_date, INTERVAL- 1 Day) andB2. Total inventory>0 andB2. Product ID= the GROUP byB2. Product ID) asB3 onB3. Product ID=B1. Product IDWHEREB1. City=Beijing andDate (B1. Online date)=Date_add (current_date, INTERVAL- 1 Day) GROUP byB1. Product ID) asB onA. Product ID=B. Product

SQL Server Enterprise Platform Management Practices book notes--sql server shrinking database causes of poor use

extentinfogocreate table Extentinfo ([file_id] smallint,page_idint, Pg_allocint, Ext_sizeint, obj_idint, index_idint, Partition_numberint, partition_id bigint,iam_chain_type varchar ( -), Pfs_bytes varbinary (Ten)) GoifExistsSelectName fromsysobjectswhereNAME ='Import_extentinfo'and type='P') drop procedure Import_extentinfogocreate procedure Import_extentinfo asDBCC EXTENTINFO ('TestDB') Goinsert extentinfo exec Import_extentinfogoSelectName astable_name,[file_id],obj_id, index_id, partition_i

Common linux commands (1)

change the owner of another user's archive or change their owner to another user. Only the system administrator (root) has such permissions.Calculation:User: user IDgroup of the new owner: user group of the new owner (group)-c: if the owner of the file has indeed changed, the change action is displayed-f: if the archive owner cannot be changed, do not display the error message-h: only the link is changed, not the file that the link actually points to

Linux chmod and chown commands

Changing another person's archive owner does not have the permission to change his/her archive owner to another person. Only system administrators (root) Have such permissions. User: user IDgroup of the new owner: user group of the new owner (group)-c: If The owner has indeed changed the file to display its change action-f: If the file owner cannot be changed, do not display the error message-h: Only the link is changed, not the file that the link ac

SQL Multi-Level Classification summary implementation

char (1 ),Parentid char (1));INSERT t1SELECT 'M', 'A' UNION ALLSELECT 'n', 'A' UNION ALLSELECT 'E', 'M' UNION ALLSELECT 'F', 'M' UNION ALLSELECT 'x', 'F' UNION ALLSELECT 'y', 'F' UNION ALLSELECT 'Z', 'B '; Create table t2 (Row int,Id char (1 ),Amount decimal (10, 2));INSERT t2SELECT '1', 'A', '13. 00' UNION ALLSELECT '2', 'B', '20. 00' UNION ALLSELECT '3', 'E', '20. 00' UNION ALLSELECT '4', 'F', '20. 00' UNION ALLSELECT '5', 'x', '20. 00' UNION ALLSELECT '6', 'y', '20. 00' UNION ALLSELECT '7',

Mysql multi-subquery creation of multiple LEFTJOIN views

Create view 'v _ noprovide 'as select * FROMtb_sectionWHEREprovide = '0' create view 'v _ thismonth' AS SELECTts. userId AS id, CONCAT ('thismonth: ', SUM (ts. amount), 'yuanyuan ') AS 'thismonth' FROMtb _ section AS tsWHEREts. yearMonth = DATE_FORMAT (NOW (), '% Y % m') create view 'v _ lastmonth' AS SELECTts. userId AS id, CONCAT ('lastmonth: ', SUM (ts. amount), 'yuanyuan ') AS 'lastmonth' FROMtb _ section AS tsWHEREts. yearMonth = DATE_FORMAT (DATE_SUB (NOW (), INTERVAL 1 MONTH), '% Y % m')

SQL statement Summary of various World Cup conjecture lists

l. topicid = f. idGroup by l. TopicId, l. UserName, f. titleOrder by sum (l. GuessPrice) DESC /* Ranking of cold scenes */Copy codeThe Code is as follows:Select top 50 f. id, f. title, f. GuessPrice, (select sum (receivePrice) FROM [game_FantasyLog] l where l. topicid = f. id ),Cast (select sum (case when ReceivePrice> 0 THEN 1.0 ELSE 0 END)/f. GuessTimes FROM [game_FantasyLog] l2 where l2.topicid = f. id) as numeric ))From [game_Fantasy] f WHERE f.

Mysql nested query and Table query optimization methods

than 2000 and used its category in the following query. Here are the specific query statements:[SQL]Copy codeThe Code is as follows:Select c. idFrom subcategory as cInner join item as I on I. subcategory = c. idGroup by c. idHaving count (*)> 2000;-- Choose one of the results, thenSelect * from subcategory where id = ????-- Result: category = 14I got a suitable value of 14, which will be used in the following queries. This is the statement used to qu

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