Implementation of pivot in MySQL in SQL Server

Source: Internet
Author: User
Tags mysql in

Project code in SQL Server:

Select IsNull(Mi line,0) asF_mivalue,IsNull(SMT Line,0) asF_smtvalue,IsNull(Air compressor Station,0) asF_changepre,IsNull(Repair line,0) asF_repairvalue,IsNull(Assembly line,0) asF_assemblyvalue from(SelectF_name,CONVERT(decimal( -,2),sum(F_value)) asF_value fromEnergyvaluewhereF_name like '%mi%' orF_name like '%smt%'orF_name like '%repair%' orF_name like '%assembly%' orF_name= 'Air Compressor Station'        Group  byf_name) AA pivot (Max(F_value) forF_nameinch(MI line, SMT line, air compressor station, repair line, assembly line)) A

And like the following

PIVOT (MAX (f_zz_basevalue) for F_flag in (F, S)) as S;
# MySQL does not support the pivot function for row and column conversions, so it needs to be converted by SQL statements.

The implementation code is as follows:

CREATE Temporary TABLE IF  not EXISTST_tmppivot (SelectF_name,CONVERT(sum(F_value),decimal( -,2)) asF_value fromEnergyvaluewhereF_name like '%mi%' orF_name like '%smt%'orF_name like '%repair%' orF_name like '%assembly%' orF_name= 'Air Compressor Station'        Group  byf_name);SelectIfnull (MI line,0) asF_mivalue,ifnull (SMT Line,0) asF_smtvalue,ifnull (Air compressor station,0) asF_changepre,ifnull (repair line,0) asF_repairvalue,ifnull (assembly line,0) asF_assemblyvalue from(    SELECT MAX(MI line) asMi line,MAX(SMT Line) asSMT Line,MAX(Air compressor station) asAir Compressor station,MAX(Repair line) asRepair line,MAX(Assembly line) asAssembly line from    (     SELECT              CaseF_name when 'mi line'  ThenF_valueEND  asmi line, CaseF_name when 'SMT Line'  ThenF_valueEND  asSMT Line, CaseF_name when 'Air Compressor Station'  ThenF_valueEND  asAir Compressor station, CaseF_name when 'Repair Line'  ThenF_valueEND  asRepair Line, CaseF_name when 'assembly line'  ThenF_valueEND  asassembly line fromT_tmppivot) astmp) asT;DROP Temporary TABLE IF EXISTST_tmppivot;

Implementation of pivot in MySQL in SQL Server

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