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Refer to this article: 51764100, thank the original authorThere are two tables, respectively, the "operator" and "documents", according to the different types of documents to classify the summary ( sales orders, sales return orders, the number of pens and amounts ), and displayed in the same table, do not want to be used as two times the method of query and merge, research, finally FIX:D_employee tableD_bilndx tableThe code is as follows:SelectB.inputid asticket number, e.fullname. asopen a sing

Create a Custom Function:1 DELIMITER $$2 3 Use ' dressv_website ' $$4 5 DROP FUNCTION IF EXISTS ' fn_queryrelation ' $$6 7CREATE definer= ' sa ' @ '% ' FUNCTION ' fn_queryrelation ' (Areaid int,relation TINYINT (1)) RETURNS VARCHAR (4000) CHARSET UTF88 BEGIN9DECLARE stemp VARCHAR (4000);TenDECLARE Stempchd VARCHAR (4000); OneSET stemp ='$'; ASET Stempchd =CAST (Areaid as CHAR); -IF relation=0 Then - While stempchd are not NULL does theSET stemp = CONCAT (Stemp,',', stempchd); -SELECT Group_conca

Label:Here are three tables, AA,BB,CC, the AA data is updated to the CC table, the AA label_id respectively intercept the field and the BB table label_id corresponding query to Label_name as a field of the CC table Insert, here divided into four sections of the queryINSERT INTO CCSelect T.apmac,t1. Label_name,t2. Label_name,t3. Label_name,t4. label_name,t.label_id, ' Hangzhou 'From (select A.ap_mac as apmac,a.label_id, substr (a.label_id,3,2) as Level1,substr (a.label_id,5,2) as Level2,SUBSTR (a

Tags: ansible runner MongoDBhttp://rfyiamcool.blog.51cto.com/1030776/1440624http://rfyiamcool.blog.51cto.com/1030776/1422263[Email protected]:~/ansible# VI mongo.pyImport SysImport PymongoImport Ansible.runnerdef log (res):conn = Pymongo. Connection (host= "localhost", port=27017)DB = conn ["Ansible"]If Type (res) = = Dict:Db.ansible.insert (RES)if __name__ = = "__main__":Runner = Ansible.runner.Runner (module_name = ' Shell ',Module_args = ' Ls-l ',Pattern = ' centos5 ',)result = Runner.run ()L

(Object): def __init__ (self): Self.dbpool= Adbapi. ConnectionPool ("MySQLdb", DB="scrapy", # database name user="Root", # Database user name passwd="qmf123456", # password Cursorclass=MySQLdb.cursors.DictCursor, CharSet="UTF8", Use_unicode=False) def process_item (self, item, spider): Query=self.dbpool.runInteraction (Self._conditional_insert, item) query.adderrback (Self.handle_error)returnItem def _conditional_insert (self, TB, item): Tb.execute ("INSERT INTO douban (name, author, press, dat

)), 14, ' 0 ') record number from TetdmisegSelect Decode (dir,1,0,1) from A1_intervalDir has a value of 1 to 0 and 0 to 1.For example, I want to inquire about the number of boys and girls in a class, what is the difference?Usually we write this:Select COUNT (*) from table where gender = male;Select COUNT (*) from table where sex = female;If you want to show it together, it'll be a union, too much trouble.With decode, you just need a word.Select decode (Gender, male, 1,0), decode (gender, female,

table containing a long column cannot be clustered.4. You cannot insert the value of a long column into another table in Sql*plus, such as insert INTO ... select.5. You cannot create a long type column in Sql*plus by querying other tables, such as CREATE table as SELECT.6. A long column cannot be constrained (NULL, NOT NULL, except for default), such as: The key column (PRIMARY key) cannot be a long data type.7. The Long type column cannot be used in the following clause of select: Where, group

) Maximum time (in milliseconds) to run or play back Describe the script Select the script, click "ctrl-shift-d", add the title and description to the script (below)Click on Ok,summary view to add a custom script description, and we can find that each sub-script has its own Summary view (below), when you click each sub-script, it belongs to the running summary will be rendered independently.End of this lessonThis article is from the "Yekoven" blog, make sure to keep

Example 1:Using this query, you get the value of Ifavoriteid,ifavusertype, Cuser,iarticleid,dfavoritetime five fields:SELECT Ifavoriteid,case where Ifavusertype = 0 Then ' news manager 'When ifavusertype = 1 Then ' merchant 'When ifavusertype = 2 Then ' member 'When ifavusertype = 3 Then ' unregistered 'When ifavusertype = 4 Then ' anonymous 'END as Ifavusertype, Cuser, Iarticleid,CONVERT (nvarchar, dfavoritetime, 111) as Dfavoritetime from Dig_favoriteExample 2:SELECT Case when' MemberType '=1

--performance issues can arise if there are two db,dbtest1 and dbtest2,dbtest1 with one table in Dt1,dbtest2 and one table dt2,dt1 join DT2. Select * fromDBO.DT1InnerDBTEST2.DBO.DT2 on .....--if the amount of DT1 data is very large, but the amount of DT2 data is not large, you can insert DT2 data into a temporary table or table variable--A join between DT1 and table variables can improve performanceDeclare @dt_variable Table(col1 type,,,,,)Insert into @dt_variableSelect .... fromDBTEST2.DBO.DT2

Author: IamlasongRequirements: Table content needs to be changed, changes in temporal table content, use of SQL official statement to update the table in several areas.Suppose that you update a field directly with the field name = subquery, multiple fields are updated, and the fields are written in parentheses, such as the following:Update TB_JG TSet t.jgfl = ' SD ',(T.zj_code, T.ZJ_MC) = (select A.zj_code, A.ZJ_MCFrom Song_temp Awhere A.zj_code = T.zj_code)where exists (select 1 from song_temp

Provinces and cities out of time query mode Guangxi June 23 1.168 Sound Message Taiwan: Inquiry number 168890012. Call the China Telecom number know-it-all. All over the region examinee can call 118114 (city charge), according to the tone operation, you can inquire to their own college entrance examination results. 114 Artificial Taiwan temporarily does not provide the Entrance Examination results Inquiry s

the language of the phone to 中文版. 5. Turn on Bluetooth, no pairing required. 6. Open and connect to available WiFi. 7. Please prepare another cell phone to test the server and client related case. 8. The data backup Tests must be tested first, because if the data backup test fails after another test, the test log will be emptied, so it must be done first. Next we can start the test of each feature, the following is a summary of the test methods of each feature. Camera FOV Cal

-cts-verifier/ctsverifier.apk. 4. Set the language of the phone to 中文版. 5. Turn on Bluetooth, no pairing required. 6. Open and connect to available WiFi. 7. Please prepare another cell phone to test the server and client related case. 8. The data backup Tests must be tested first, because if the data backup test fails after another test, the test log will be emptied, so it must be done first. Next we can start the test of each feature, the following is a summary of the test methods

For a long time did not come out, today came to seowhy see the husband is always a post, let me not by the language, let me have an inspiration, in fact, a lot of things, really want us to practice in the central summary, to be good at discovering, to be good at trying new practices, but also have bold ideas, so that we can go in this road farther, Walk longer, the teacher's this post http://www.seowhy.com/bbs/thread-380705-1-1.html let everyone think up a lot, why there is such a post out, why

Previously talked about the Google search results page, but also Google, Baidu and Bing search results page did some comparison. The following is the search results page for search engine how to optimize the site to some suggestions. There are two main suggestions, one is for the optimization of the page page, one is for the website construction Strategy optimiza

disadvantages are also obvious. For example, it is difficult to identify some special types of errors. When the software is modified, it must be re-tested, and blindness is serious. The world's first commercial mobile white box testing tool for pure software Thradingtest product brochure content outline Threadingtest Threadingtest ("TT" for short) is a white box testing tool developed by Shanghai zero one assembly Co., Ltd. Its design is based on innovative testing philosophy-"threading test

Article title: Remote Display of Unix server running results. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. In practical work, system engineers often encounter various requirements of enterprise employees. Some time ago, some enterprises proposed to the author that an application should run on the server, but the

As a webmaster, always pay attention to the changes in Baidu should be every webmaster every day doing things bar, open a few webmaster groups tonight, found that we are discussing a phenomenon, Baidu made a small change, what is the change? Perhaps we all found it, is: "Baidu search results on the top of the second page appears related search"; So for Baidu this move, as a webmaster, as a seoer, we can get some what enlightenment? And what opportunit

Presumably research Baidu are aware of Baidu in different regions search some keywords when the search results are different, and this is the Baidu has been testing a long time a function: The user input some key words, Baidu will call the user's IP and then according to the user IP city, to improve the city + keyword ranking. In fact, many people have analyzed the results, last night in the Seowhy forum to