concatenate in oracle sql query

,'YYYYMMDD') Rangebetween thePreceding Currentrow)End asf70115_70011, Case whenA.c_date>To_char (sysdate-3,'YYYYMMDD') Then sum(VALUEF1) Over(Partition byA.code,a. Year Order byTo_date (A.c_date,'YYYYMMDD') Rangebetween thePreceding Currentrow)End asf70104_70011, Case whenA.c_date>To_char (sysdate-3,'YYYYMMDD') Then sum(VALUEF6) Over(Partition byA.code,a. Year Order byTo_date (A.c_date,'YYYYMMDD') Rangebetween thePreceding Currentrow)End asf70126_70011, Case whenA.c

This article provides a detailed analysis of the implementation of Oracle SQL statements for querying and deleting jobs, for more information about how to query and delete duplicate records, see SQL statement 1. For more information about duplicate records in a table, see select * frompeoplewherepeopleIdin (selectpeopl

SQL statement for querying and deleting duplicate records1. Search for redundant duplicate records in the Table. duplicate records are determined based on a single field (peopleId ).Select * from peopleWhere peopleId in (select peopleId from people group by peopleId having count (peopleId)> 1)2. Delete unnecessary duplicate records in the Table. Repeat records are determined based on a single field (eagleid), leaving only the records with the smallest

Oracle journey (ii) SQL statement query settings such as t_chmo_order_opera p, business table t_chmo_teruser u, user table t_chmo_province, Province table t_chmo_opera_price r price list ----- value-added business details select p. oo_source_num as phone number, r. opera_price as amount, cp_province_name as region, p. oo_create_time as date, u. ct_category as ope

SQL statements for Oracle management and query Tablespace and capacity: Select tablespace_name, sum (bytes)/1024/1024/1024 from dba_data_files group by tablespace_name; Free space of the tablespace: Select tablespace_name, sum (bytes) from dba_free_space group by tablespace_name; System tablespace: Select tablespace_name from dba_tablespaces; System data

Page query SQL statement for the Oracle database tutorialOracleSELECT *From (select RowNum r,t1.* from table name T1 where rownum where T2.R >= m For example, from the table sys_option (primary key is sys_id) from 10 records or retrieve 20 records, the statement is as follows: SELECT *From (select RowNum r,t1.* from sys_option where RowNum where T2.R >= 10 MyS

Label:SELECT * FROM (SELECT Tt.*,rownum RN from(SELECTa.case_id as Treatid,A.type as TYPE,B.content as CONTENT,b.add_user_id as Adduserid,B.add_user_type as Addusertrpe,A.create_time as Createtime,B.check_time as Checktime,E.addusertypeFrom T_medical_case ALeft JOIN t_treatment B on a.case_id = b.treat_idLeft JOIN (select c.patient_id as ID, C.user_name, ' 2 ' as AddusertypeFrom T_patient_info CUNIONSelect d.doctor_id as ID, D.user_name, ' 1 ' as AddusertypeFrom T_doctor_info D) E on b.add_user_

SELECT DISTINCTFA. Application_short_name, FA. BasePath, Fat. Application_name, fe. Executable_name, fe. Execution_file_name, FCP. Concurrent_program_name, FCP. Output_file_type, FCP. Output_print_style, Fcpt.user_concurrent_program_name, Fcpt.language, fcpt.de Scription, Fcp.enabled_flag fromfnd_application_tl fat, fnd_application fa, Fnd_concurrent_programs_tl fcpt, Fnd_concurrent_program S FCP, Fnd_executables feWHERE 1 = 1 andFat. application_id=FA. application_id andFat. LANGUAGE=FCP

Tags: data SP problem BS database server SQL as installationWhen SQL Server accesses a database table in Oracle remotely:The remote syntax is typically: SELECT * from OpenQuery (Oracle linked server name, ' query statement ')Eg:select * from OPENQUERY (QTX, ' select * from s

The paging query method for Oracle, SQL, and DB2 is different from that for paging query statements in Oracle and SQL, the following describes the differences between DB2 paging query a

Many of my friends who use mysql limit for paging to oracle do not know how to write paging. In fact, oracle paging is similar to mssql paging. Next I will introduce oracle paging statements. Simplest use The Code is as follows: Copy code Select t2 .*From (select rownum r, t1. * from youtable t1 where rownum Where t2.r>? If the numb

Oracle Real-Time query resource consumption SQL 1. first, use the top command to view the pid Number with more resources in production. Note: For the oacle of the top Command user, follow the pid www.2cto.com 2. query the current time-consuming session ID, user name, And sqlID. Among them, the pid in top is the spid fi

A detailed explanation of the Double quotation marks required for table names and Field Names during oracle SQL statement Query As a beginner in oracle, I believe everyone will encounter this problem, It is clear that navicat created a table visually, but it cannot be found! Why? Select * from user; However, if we add

* fromEmpwhereEmpno not inch(SelectEmpno fromEmpwhereRowNumSize*(page- 1)) andRowNumsize; --sorting and then paging query --number of data after sorting (Efficiency row 2nd) Select * from(SelectRowNum RN, D.* from(Select * fromEmpOrder bySaldesc) d)whereRn> 5 andRn One; --Paging function: row_number function (1th efficiency row) SelectRow_number () Over(Order bySaldesc) RN, EMP.* fromEMP; --page Out Select * from(SelectRow_numbe

Page Size *From table1where id>(select Max (ID) from(Select Top ((page 1) * page size) ID from table1 ORDER by ID) as T)ORDER BY IDHow much of this method does not always have a big drop, the stamina is still very sufficient. Especially when the data volume is large, the execution speed of the method is not reduced at all.Using top requires that the primary key must be unique and cannot be a federated primary key. If it is a federated primary key, the query