Re: [sqlite] Proof that a line has been modified

Thank you Clemens! Clemens Ladisch 7 septembre 2017 à 10:34 Something like . See git or fossil, where the current state of the entire repository is identified by a hash over all data and all previous changes; once

Re: [sqlite] Need help with SQL query

Correction: On 2017/09/11 6:43 AM, R Smith wrote: SELECT I.ID, ISNULL(A.VALUE,'[No Value]')   FROM ITEM AS I   LEFT JOIN ATTRIBUTES AS A ON A.ITEM_ID = I.ID  WHERE A.key='abc' OR A.key IS NULL  ORDER BY A.VALUE; There is of course no such thing as SORT BY in SQL, it's ORDER BY. (Forgive me,

Re: [sqlite] Need help with SQL query

On 2017/09/11 5:35 AM, Vikas Aditya wrote: Hi All, I need some help in figuring our right query syntax for querying items from two tables. We have two tables. One of the table has list of items. And Second table has additional attributes. CREATE TABLE ITEM ( ID INTEGER, FIELD0 TEXT FIELD1

[sqlite] Need help with SQL query

Hi All, I need some help in figuring our right query syntax for querying items from two tables. We have two tables. One of the table has list of items. And Second table has additional attributes. CREATE TABLE ITEM ( ID INTEGER, FIELD0 TEXT FIELD1 TEXT, FIELD3 TEXT, FIELD4 TEXT ); CREATE TABLE

Re: [sqlite] [EXTERNAL] Performance impact of UPDATEing multiple columns vs few columns

If you're preparing that statement more than once then you are wasting time, there's no reason whatsoever to do it. You're also wasting time if you make a bind call to set any column that hasn't changed since the last time you executed the statement. The entire row is rewritten when updating

Re: [sqlite] [EXTERNAL] Performance impact of UPDATEing multiple columns vs few columns

>>> Are you using a single prepared statement and binding values (in which case, how do you know what values to bind for the "non-updated" columns?) or are you creating query strings? I am not too sure, if i get it completely. My current code has a lot of update statements like. "update records

Re: [sqlite] JOIN vs. INTERSECT vs. WHERE IN (...) - speed and efficiency differences

Well yes but the documentation suggests that one could expect a slight degradation. The words "works best with" does not seem to imbue an idea of "give WITHOUT ROWID tables a wide berth when your tables are more than few columns wide", and I don't think the Devs intended that either. I can

Re: [sqlite] JOIN vs. INTERSECT vs. WHERE IN (...) - speed and efficiency differences

R Smith wrote: > I am using 151 columns for both tests. The only thing that changes > between the two scripts are the words "WITHOUT ROWID" being added says: | WITHOUT ROWID tables will work correctly ... for tables with a single | INTEGER PRIMARY KEY.

Re: [sqlite] Fwd: Problem on Windows 10 machines

I wonder if the answer at this following inquiry is suggesting that your last posted results are unremarkable: https://stackoverflow.com/questions/11872539/windbg-crash-dump-analysis and that suggested alternative approach may be more helpful than WinDbg ? -- -- -- " --Ö¿Ö--