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Tagged Questions

1
vote
2answers
41 views

Why am I only seeing the date portion of a timestamp value?

(the question says it all)
5
votes
2answers
58 views

How can I use INSERT…ON EXISTING when I can’t use the primary key as match?

I have a "results" base table where I have stored data from different source tables. It's the situation where a simple view would be better suited but the select is way to compl …
2
votes
1answer
117 views

Are there “SQL Design Patterns”?

I have just searched through StackOverflow but couldn't find much... To all the SQL experts, is there anything comparable to the "design patterns movement" which has taken place …
3
votes
3answers
76 views

How to output a decimal column as string ?

I have an issue only when the value is less than 1. Table decimal column value = 0.5, Required output format = '0.5' I am getting it as '.5' , i need it as '0.5' select 0.5, str …
4
votes
6answers
144 views

How can I improve this stored function performance?

create function bludata.onlyNumber(in val long varchar) returns long varchar begin declare sTemp long varchar; declare iCount integer; set iCount=1; set sTemp=''; while i …
8
votes
2answers
31 views

Within a select are calculated columns allowed to use other calculated columns?

Someone sent me a query that contained the following: /* Gets the reading_id of the last reading 30 days ago - this is for quick lookups of other data 30 days ago */ …
4
votes
1answer
27 views

Does having values in an index improve performance?

If a query is only pulling back one value from a table using 3 columns in an index, does adding it to the index improve performance by not pulling back data rows? SELECT read …
2
votes
2answers
45 views

Change SQL decimal delimiter

Hello! I am trying to import data into my table using INPUT INTO The problem is my decimals is using , as a delimiter, and it expects .. So it won't work! How can i change thi …
3
votes
2answers
55 views

How to download a file from internet using sql anywhere?

I need to download UN Blacklist XML file periodically. Is there any way to automate this using sql ONLY?
2
votes
1answer
28 views

How do I rotate a table?

This question and answer is copied from the SQL Anywhere newsgroup AND a post to be published later this morning: http://sqlanywhere.blogspot.com/2010/01/crosstab-rotate-pivot.html …
1
vote
2answers
69 views

How to crash a SA11 engine with a simple SQL statement

While testing High Availability I want to simulate a failing primary server. Killing the process via task manager would work, but I just wanted a more elegant solution using plain …
2
votes
1answer
26 views

Should I cast expressions for IN search conditions to the matching type?

I just tried a simple exclusion query of the form select * from T1 where C1 not in (select C2 from T2) where C1 is a varchar column. That works very fast if C1 and C2 are bo …
1
vote
1answer
34 views

Have there ever been thoughts on a DRI action that is directed from the child to the parent table?

(Beware, that might be one of the first academical questions on SQLA.) In a longer comment dialogue between Breck and me on the following question, I raised the following question …