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Full Discussion: SQL selective replace
Top Forums UNIX for Dummies Questions & Answers SQL selective replace Post 302880601 by rsi.245 on Saturday 21st of December 2013 01:49:05 AM
Old 12-21-2013
SQL selective replace

Hi

I have a table which looks like this
Code:
id | name | length | clone | null
1 | string 1 | 12345643 | string 1 | NULL |
2 | string 2 | 2345612 | string 2 | NULL |
3 | string 3 | 3421556 | string 3 | NULL |
4 | string 4 | 1236742 | string 4 | NULL |
5 | string 5 | 2312677 | string 5 | NULL |
6 |string 6 | 12786315 | string 6 | NULL |
7 | string 7 | 2341135 | string 7 | NULL |
8 |string 8 | 452189 | string 8 | NULL |
9 |string 9 | 124343 | string 9 | NULL |
10 | string 10 | 3432344 | string 10 | NULL |
.....

I wanted to replace all names columns having id> 5 to sequence.
Keep the first 5 entries the same but replace all others name = "sequence[id]"
and clone entry to be changed as clone = "sequence[id]"
The table should look like this

Code:
id | name | length | clone | null
1 | string 1 | 12345643 | string 1 | NULL |
2 | string 2 | 2345612 | string 2 | NULL |
3 | string 3 | 3421556 | string 3 | NULL |
4 | string 4 | 1236742 | string 4 | NULL |
5 | string 5 | 2312677 | string 5 | NULL |
6 |sequence 6 | 12786315 | sequence 6 | NULL |
7 | sequence 7 | 2341135 | sequence 7 | NULL |
8 |sequence 8 | 452189 | sequence 8 | NULL |
9 |sequence 9 | 124343 | sequence 9 | NULL |
10 | sequence 10 | 3432344 | sequence 10 | NULL |



i did use this command
Code:
UPDATE tablename 

SET name = "sequence[id]"
where id >5;

What is my error?

Please do advise.

Last edited by Scott; 12-21-2013 at 05:09 AM.. Reason: Please use code tags
 
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wstring(3C)						   Standard C Library Functions 					       wstring(3C)

NAME
wstring, wscasecmp, wsncasecmp, wsdup, wscol - Process Code string operations SYNOPSIS
#include <widec.h> int wscasecmp(const wchar_t *s1, const wchar_t *s2); int wsncasecmp(const wchar_t *s1, const wchar_t *s2, int n); wchar_t *wsdup(const wchar_t *s); int wscol(const wchar_t *s); DESCRIPTION
These functions operate on Process Code strings terminated by wchar_t null characters. During appending or copying, these routines do not check for an overflow condition of the receiving string. In the following, s, s1, and s2 point to Process Code strings terminated by a wchar_t null. wscasecmp(), wsncasecmp() The wscasecmp() function compares its arguments, ignoring case, and returns an integer greater than, equal to, or less than 0, depending upon whether s1 is lexicographically greater than, equal to, or less than s2. It makes the same comparison but compares at most n Process Code characters. The four Extended Unix Code (EUC) codesets are ordered from lowest to highest as 0, 2, 3, 1 when characters from different codesets are compared. wsdup() The wsdup() function returns a pointer to a new Process Code string, which is a duplicate of the string pointed to by s. The space for the new string is obtained using malloc(3C). If the new string cannot be created, a null pointer is returned. wscol() The wscol() function returns the screen display width (in columns) of the Process Code string s. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------------------------------------+ |ATTRIBUTE TYPE ATTRIBUTE VALUE | |MT-Level MT-Safe | +-----------------------------------------------------------+ SEE ALSO
malloc(3C), string(3C), wcstring(3C), attributes(5) SunOS 5.11 29 Dec 1996 wstring(3C)

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