70 761 querying data with transact sql

= connection.cursor () Cursor.execute ( "" "Select Unix_timestamp (Date_format (CTime, "%%y-%%m-01")) *1000, COUNT (ID) from repository_trouble WHERE processer_id=%s GROUP by Date_format (CTime, "%%y-%%m") "" ", [Row.nid]) result = Cursor.fetchall () temp = { ' name ': Row.username, ' data ': Result } reponse.append (temp) import JSON return HttpResponse ( Json.dumps (repons

Today in SQL Server data query, you need to use a cross-server connection , here to record how to use the cross-server query method in SQL Server, there are the following steps./*Create an intermediate database linkexec sp_addlinkedserver ' middledata ', ' ', ' SQLOLEDB ', ' database connection instance, or IP 'exec sp_addlinkedsrvlogin ' Middledata ', ' false

Chr (9) Tab keyChr (10) line breakChr (13) EnterChr (CHR) (10) Carriage return lineQuery data copied to Excel, if a field value of 2 or more than 2 cells, you may have the above symbol, can be InStr isolated, can be deleted by replaceSelect N_id,s_name from T_a t where stat_time=20171206 and InStr (S_NAME,CHR (' ten ')) >0;Select N_id,s_name from T_a t where stat_time=20171206 and InStr (S_NAME,CHR (') ') >0;Select N_id,s_name from T_a t where stat_ti

records, one is a completely duplicate record, that is, all fields are duplicated records, second, some key fields duplicate records, such as the Name field is repeated, and the other fields may not be repeated or repeated can be ignored.1, for the first kind of repetition, easier to solve, usingSELECT DISTINCT * from TableNameYou can get a result set with no duplicate records.If the table needs to delete duplicate records (duplicate records retain 1), you can delete them as followsSELECT DISTI

SQL statement for querying Oracle table data by PAGE The SQL syntax for querying Oracle data by page is widely used on the Internet. This article is also a typical syntax for the author to search on the Internet. It is not my orig

Label:Original: Querying data in an Excel table in SQL Server for various problems encounteredSELECT * from OpenDataSource (' microsoft.jet.oledb.4.0 ', ' Data source= ' D:\KK.xls "; User id=admin; password=; Extended properties=excel 5.0 ') ... [sheet1$] Questions:msg 15281, Level 16, State 1, line 1thSQL Server bloc

search criteria, are usually used with the group by sentence. ORDER BY: Optional parameter that specifies how the query results are sorted. The sort criteria asc denotes ascending, desc indicates descending, and the default sort is ASC ascending. Various query examples:1. Query all the columns in the score table.SELECT * FROM Score table2. Check the name of the score table and the contents of the results list.Select name, score from score table3. Check the scores of Zhang San in the score tabl

SQL optimization solution for querying duplicate data in mysql, mysqlsql When querying non-case-insensitive data in mysql, subqueries are often used, and the upper function is used in subqueries to convert conditions into uppercase. For example: Copy codeThe Code is as fol

? SELECT * from data table where Date_format (Time field name, '%y-%m ') =date_format (now (), '%y-%m ') Query last month's data SELECT * from data table where Date_format (Time field name, '%y-%m ') =date_format (Date_sub (Curdate (), INTERVAL 1 MONTH), '%y-%m ') Query this week's data [HTML]View Pl

Label:This problem typically occurs when the query has a varchar numeric error or a varchar Field operation. Workaround: So that the number of non-rotating can not be converted. The SQL function has a isnumeric (argument) to convert the number if the successful reverse 1 is unsuccessful then back to 0 Cases: Select Case when IsNumeric (field) =0 then 0 else Field Operation end from table name Declare @ parameter varchar( +) Set @ parameter='ABC' Selec

Tags: Export background technology share class use not mongod data address1. Download ZepplinGo to the official website and download the full tar package. 2. Unziptar zxvf zeppelin-0.7. 3. tgz3. Modify the ConfigurationNew configuration file CP zeppelin-env. sh. Template zeppelin-env. SH Modifying a configuration file VI zeppelin-env. SH # Set the Java home path Export JAVA_HOME=/USR/LIB/JVM/JAVA-1.8.0-OPENJDK-1.8.0.141-1.B16.EL7_3.X86_64/JRE # Set S