mssql sql语优化实例不使用insert语句
/mssql sql语优化实例不使用insert语句
/*
create table tb_a ( owner char(2) null, skuid varchar(10) null, lot varchar(50) null, quality varchar(2) null, vol decimal(18,2) null, vol_exchange decimal(18,2) null, mysort int ) create table tb_b ( owner char(2) null, skuid varchar(10) null, lot varchar(50) null, quality varchar(2) null, vol decimal(18,2) null, vol_exchange decimal(18,2) null, mysort int ) INSERT INTO tb_a(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '78 ', '1000164481 ', '071203 ', '0 ',80.00,70.00,1) INSERT INTO tb_a(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '78 ', '1000164481 ', '071202 ', '0 ',60.00,0.00,2) INSERT INTO tb_a(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '78 ', '1000164481 ', '081203 ', '0 ',30.00,30.00,3) INSERT INTO tb_a(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '78 ', '1000164481 ', '081202 ', '0 ',20.00,20.00,4) INSERT INTO tb_a(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '78 ', '1000164481 ', '081201 ', '0 ',10.00,10.00,5) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '01 ', '1000164479 ', '091201 ', '0 ',18.00,6.00,6) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '04 ', '1000164481 ', '091201 ', '0 ',20.00,0.00,5) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '03 ', '1000164479 ', '091201 ', '0 ',26.00,26.00,4) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '02 ', '1000164479 ', '091201 ', '0 ',28.00,28.00,3) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '08 ', '1000164481 ', '091201 ', '0 ',60.00,0.00,2) INSERT INTO tb_b(owner,skuid,lot,quality,vol,vol_exchange,mysort) VALUES ( '06 ', '1000164481 ', '091201 ', '0 ',80.00,70.00,1)
go
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