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oracle记录去重复,判断数字处理(Oracle records, repeats, and judges numbers)
oracle记录去重复,判断数字处理(Oracle records, repeats, and judges numbers)
Judge numbers, keep numbers
Select id, title, translate (Zijin,-.0123456789||zijin,-.0123456789) from company where id in (select id from company where length (translate (Zijin,-.0123456789||zijin,-.0123456789))! =length (Zijin)) order by id;
Select, ID, title, Zijin, from, company, where, ID, in (select, ID, from, company, where, length (translate (Zijin,-.0123456789||zijin,,-.0123456789)) =length (Zijin)) order, by, id;
Select id, title, Zijin, to_number (Zijin), substr (Zijin, 0, instr (Zijin, -1 from company where )) length (translate (trim (Zijin),0123456789||zijin,0123456789) (length) trim (Zijin));
Go duplicate
Select, ID, title, from, company, where, ID, not, in (select, min (ID), from,, company, group, by, title)
Select, count (*), from, company, where, ID, not, in (select, min (ID), from,, company, group, by, title)
Select, count (*), from, company, where, ID, in (select, min (ID), from,, company, group, by, title)
Querying duplicate data sql:
Select, ID, title, from, company, where, title, in (select, title, from, company, group, by, title, having, count (1), 1) order, by, title, ASC
Update, company, set, title=, title||, Inc.
Select, col, from, company, where, t, like,c%
Select count (*) from, company, where, city, like,c%
Alter, table, p_admin, rename, column, uid, to, ID
The full width half angle
Length (c.zijin) - =lengthb (c.zijin)
SELECT To_single_byte (1 2, FROM dual; thou) - turn into semiangle
SELECT To_muil_byte (881898? 71) FROM dual----- into full width
Full / half width conversion
If, exists (select *, from, dbo.sysobjects, where, id = object_id (N[dbo].[f_convert]), and, xtype, in (NFN, NIF, NTF))
Drop function [dbo].[f_convert]
GO
/*-- angle / angle conversion
Conversion instructions
Full width characters from the Unicode encoding from 65281~65374
Half-width character from Unicode encoding from 33~126
The space is special, full width is 12288, width 32
In addition to air except
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