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Complex Query To Group and (Potentially Union) Data
This should work but I do not know if it is really optimized for large data. CREATE TABLE #tab (id int, Item1 varchar(255), Item2 varchar(255), Status bit) INSERT INTO #tab VALUES (1,'Parent1','Child1', 1 ), (2,'Parent1','Child2', 1 ), (3,'Parent2','Child1', 1 ), (4,'Parent2','Child2', 1 ), (5,'Parent3','Child1', 1 ), (6,'Parent3','Child2', 0 ), (7,'Parent4','Child1', 1 ), (8,'Parent4','Child1', 1 ), (9,'Parent4','Child2', 0 ) SELECT * INTO #filter FROM #tab WHERE Status = 0 SELECT * INTO #results FROM #tab WHERE Id IN ( SELECT MAX(ID) FROM #tab WHERE Item2 = 'Child1' AND Status = 1 AND Item1 IN (SELECT Item1 FROM #filter) GROUP BY Item1 ) SELECT * FROM #filter UNION SELECT * FROM #results

Categories : SQL

Query based on previous query results in Phonegap SQLite
The problem with results can be easily fixed by changing the name of the argument to the anonymous success function in the "FROM T_SubTask" query. As for the item variable, you should be able move the code inside the if block into a separate function. Something like: function addSubtaskIfNeeded(item, tx) { var sql="SELECT * FROM T_SubTask WHERE title='"+item.title+"' and date='"+today+"')"; tx.executeSql(sql,[],function(tx,subresults){addSubTask(tx, subresults, item.title)},errorCB); } Note, that the results variable is also renamed to subresults above. Then change the code inside the if block to call that function: if (item.date == today) { addSubtaskIfNeeded(item, tx); } This way the item variable inside addSubtaskIfNeeded query callback function will be the one passed as ar

Categories : Android

multiple query with sqlite 2nd query gives only first result
May be this will work : SELECT tm.quantity, tm.materialTypeId , t.typeName FROM invTypeMaterials tm INNER JOIN invTypes t ON t.TypeID = tm.materialTypeId WHERE tm.TypeID=12743

Categories : Mysql

SQLite equivalent query of the given MSSQL query.
Without knowing unique key it's really hard to do in readable way (no cross apply, no windowed functions). If you can afford to add id into your table, you can do: select * from yourtable where id in ( select min(y.id) from yourtable as y inner join ( select [TKG], max([CAP]) as [CAP] from yourtable group by [TKG] ) as y2 on y2.[TKG] = y.[TKG] and y2.[CAP] = y.[CAP] group by y.[TKG] ) sql fiddle demo Considering myself lucky that I don't work in SQLite often :)

Categories : SQL

How to prevent Cache Breakdown by nonexistent id?
You could cache an Optional in which you would save Optional.absent() in the first request if the response was empty. You have to invalidate this cache's Optional entity as soon as the associated Id is present in the database, or sooner if you are experiencing memory problems with a ever growing cache. I like the guava's Cache and Optional classes as I think they address most of the possible issues and I'll use them in my example: import java.util.concurrent.Callable; import java.util.concurrent.ExecutionException; import java.util.concurrent.TimeUnit; import com.google.common.base.Optional; import com.google.common.cache.Cache; import com.google.common.cache.CacheBuilder; public class OptionalCacheUsage { private static final Cache<Id, Optional<Entity>> cache = CacheBu

Categories : Java

Entity Framework is looking up a nonexistent table
You are mapping your many-to-many table to a table named "Students" : modelBuilder.Entity<CourseOffering>() .HasMany(x => x.Students) .WithMany(x => x.CourseOfferings) .Map(x => { x.ToTable("Students"); x.MapLeftKey("StudentId"); x.MapRightKey("CourseOfferings"); }); so when EF attempts to create the actual table "Students", it has to rename it to "Students1". You might want to rename your many-to-many table to StudentsCourseOfferings to follow convention. This should create two tables in your database: StudentsCourseOfferings and Students

Categories : C#

How does R treat nonexistent index values?
It doesn't work because of this: > x <- numeric(0) > x numeric(0) > -x numeric(0) > identical(x, -x) [1] TRUE IOW, negating a vector with no elements leaves the vector unchanged, and hence the indexing operation using the vector will also be unchanged.

Categories : R

SQL. Compare Rows and Set Values to NULL If Nonexistent
Ok, here is one way: SELECT A.*, B.[date] prevdate, B.[Version] pVersion FROM myTable A OUTER APPLY (SELECT TOP 1 [date], [Version] FROM myTable WHERE [date] < A.[date] AND id = A.id) B WHERE A.[date] = (SELECT MAX([date]) FROM myTable) This are the results: ╔════════════╦═════╦═════════╦════════════╦══════════╗ ║ date ║ id ║ Version ║ prevdate ║ pVersion ║ ╠════════════╬═════╬═════════╬════════════╬══════════╣ ║ 2013-04-15 ║ ape ║ 1,1 ║ 2013-03-15 ║ 1 ║ ║ 2013-04-15 ║ bat ║ 2,1

Categories : SQL

Regex number range for nonexistent dates
Depending on what Bulk Image Downloader uses as a regex engine, you might try: example.com/[201301-201312](0[1-9]|[1-2][0-9]|3[0-1]).html This should let you select valid months for the year you select [201301-201312] Then the date can be a 01 - 09 0[1-9] 10-29 [1-2][0-9] or 30,31 3[0-1] Combine the date parts into a group with the or operator (0[1-9]|[1-2][0-9]|3[0-1]) put it all together as above, and it may work for an entire year. Again depending on precisely which regular expression engine they've decided to use.

Categories : Regex

Name is nonexistent or not a directory when using cd function on value retunred by uigetdir
Cause of error You are using cd in its "command form". Therefore, Matlab understands cd folder_name as cd-ing to a folder called "folder_name". In "command form" matlab does not evaluate the variable name to see what is the string that is stored in the variable folder_name. Solution You need to use cd in its "function form": cd( folder_name ) This way matlab understands that folder_name is a variable name and not the actual name of the folder. For better understanding, cosider the difference between: >> cd( folder_name ) and >> cd( 'folder_name' )

Categories : Matlab

How to filter out nonexistent object that a foreign key is pointing to
Here is what I would do.. valid_people_ids = Person.objects.all().values_list('id', flat=True) bad_pr_people = PR.objects.exclude(person_id__in=valid_people_ids) Hope that helps.

Categories : Django

Netbeans accuse nonexistent errors (i guess)
Code (logical statements) should be inside some method, not directly inside class. public class NewClass { public void someMethod() { //Here your code goes. } }

Categories : Java

cocos.layer package being reported as nonexistent in PyDev
I haven't checked, but if it finds 'cocos' but not 'cocos.layer', it may be that it's something hard to analyze statically. In this case, try adding 'cocos.layer' to the forced builtins. See 'http://pydev.org/manual_101_interpreter.html' in the getting started manual for details.

Categories : Python

Postfix sending mail from nonexistent email addresses
The reject_unlisted_sender restriction listed in smtpd_sender_restrictions is listed after permit_mynetworks and permit_sasl_authenticated. Postfix traverses the restriction list in order and terminates when it hits the first permit/reject and hence never reaches reject_unlisted_sender. Since your message wasn't rejected by reject_unauth_destination it must've been accepted because of permit_mynetworks or permit_sasl_authenticated. Additionally, unless the sender address you used had a domain part that was actually "owned" by Postfix (i.e. listed in mydestination, virtual_mailbox_domains, virtual_alias_domains, or relay_domains), it can't be validated and reject_unlisted_sender won't work. See details in the postconf(5) man page. Other observations: The warn_if_reject restriction is pl

Categories : Mysql

Manage objects even nonexistent "add listener object AS3 Which does not exist"
You should simply check if your object actually exists: if(btn1) btn1.addEventListener(MouseEvent.CLICK, functionBtn1); if(btn2) btn2.addEventListener(MouseEvent.CLICK, functionBtn1); if(btn3) btn3.addEventListener(MouseEvent.CLICK, functionBtn1); This expressions checks if any of your buttons are null and skips one if it doesn't exist

Categories : Actionscript

Can't get PHP to query anything with sqlite using PDO
This probably isn't a solution as such but the comments section is too small. In any case, it should help you get to the bottom of the problem. First, enable error reporting <?php ini_set('display_errors', 'On'); error_reporting(E_ALL); You can remove these lines once it goes to production. Try using a better file path (I've always found DOCUMENT_ROOT to be unreliable, especially if you want to access the script via non-web methods). Also, set PDO to throw exceptions $db = new PDO('sqlite:' . __DIR__ . '/sqlitedb/testdb.db'); $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION); Chances are, your query is failing, thus $result is false. Enabling proper error handling an exceptions from PDO should point you in the right direction.

Categories : PHP

Rails looking for Nonexistent ID column in schema_migrations table during initial migrartion
In my case this problem was caused by the attribute_normalizer gem. (See issue 42) It only happened with a completely empty database after the very first migration. Using the 1.2 prerelease fixed the problem.

Categories : Ruby On Rails

SQLite Query with two where clauses
You can use ALTER TABLE function on your onUpgrade() method. @Override public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { // If you need to add a column if (newVersion > oldVersion) { db.execSQL("ALTER TABLE foo ADD COLUMN new_column INTEGER DEFAULT 0"); } }

Categories : Android

how to query sqlite when there are more than one condition that needs to be met
This should work: Cursor c = contentResolver.query(content_uri, projection, "col1=? AND col2=?", args, null); where args is a String[] of values to substitute in for the ? in the query.

Categories : Android

Not able to query my sqlite database
I am not seeing exactly what is going wrong, but I would offer that, unless you have a specific objective that cannot be met by using third-party code, you should consider using FMDB https://github.com/ccgus/fmdb - assuming that you need to go directly to SQLite. I have used it quite a bit and had good success with it. It's a little strange to be "closing" the DB and calling [super viewDidLoad] from searchICAO:. Was this deliberate? It seems like this might be the source of your problem? On the second query, the DB will be closed?

Categories : IOS

Is there a way to query a Sqlite database outside of an app?
You can use the adb and Windows cmd for this if you're okay with using the cmd line. It's located in the platform-tools folder of the android sdk. Open windows command prompt and navigate to the sdkplatform-tools folder C:sdkplatform-tools adb shell shell@android:/ $ cd data/data/com.myapp/databases shell@android:/ $ sqlite3 myapp.db sqlite > And now you can issue sql queries to the db. You'll only be able to do this for the emulator, the db on a device is private and only accessible if the device was rooted

Categories : Android

SQLite complex query
The following gives the proportion of deleted tweets for a user -- of all tweets for the user that are known. select username, (sum(case when delete1 = 1 then 1.0 else 0.0 end) / sum(case when delete1 in (0, 1) then 1.0 else 0.0 end) ) as pdeleted from twitt_tb t group by username order by pdeleted desc; If you want to include all tweets for the user, you can formulate this as: (sum(case when delete1 = 1 then 1.0 else 0.0 end) / count(*) ) as pdeleted Or even more simply as: avg(case when delete1 = 1 then 1.0 else 0.0 end) as pdeleted This includes the proportion in the output. If you wanted only the user name without the proportion, then put the formula in the order by clause instead of the select clause. And finally, if you want this

Categories : SQL

PHP variable in SQLite query
It seems you were about to use the right way but for some reason gave up Here you go: $result = $db->prepare('SELECT * FROM data WHERE NodeID = ?'); $result->execute(array($inNodeID)); $data = $result->fetchAll(); foreach($data as $row) ...

Categories : PHP

Best way to query Sqlite DB in Win32 C
From sqlite about page If optional features are omitted, the size of the SQLite library can be reduced below 300KiB I guess it will be hard to go lower, and I don't think there are alternative implementations doing less400 KB is a lot but SQlite do a lot too. Even a small database will be more than 50M. You may go lower dynamically linking with some Microsoft ADO but with many potential install or security problems (and no sqlite file support). My final words 400K is a lot. But for today 400K is pretty small. Many homepage are more than 1M and that's even more crazy.

Categories : C++

sqlite query with intersect and except
Compound queries do not support parentheses, but subqueries do: SELECT a, b FROM table1 INTERSECT SELECT * FROM (SELECT a, b FROM table2 EXCEPT SELECT a, b FROM table3) Please note that INTERSECT does not have higher precedence than EXCEPT, the actual rules are: When three or more simple SELECTs are connected into a compound SELECT, they group from left to right. Since INTERSECT is commutative, you could simply write this particular query as: SELECT a, b FROM table2 EXCEPT SELECT a, b FROM table3 INTERSECT SELECT a, b FROM table1

Categories : Sqlite

Stock quote gem - retrieval for nonexistent ticker yields nomethod error
This is a very common condition with Ruby code, and a common idiom to return nil on a failed search. However this specific gem is a little flaky when it fails to get a good search result. You can protect yourself against it failing by using a begin ... rescue block. begin stock_quote = StockQuote::Stock.quote(@ticker) rescue StandardError stock_quote = nil end if stock_quote @companyname = stock_quote.company @exchange = stock_quote.exchange @price = stock_quote.last end This might not be ideal program flow for you, so you may need to adapt this. Note StandardError is what gets rescued by default, I didn't need to write that. You could also put NoMethodError in your situation, and usually you want to restrict rescuing exceptions to specific parts of code where you know how

Categories : Ruby

SQLite adding columns in row in query
You are using the bitwise and operator & where you probably want a logical AND. The bitwise operators have higher precedence that the comparisons (=, <), while the logical ones have lower. Therefore state=1 & ts+ttr<? is very different from state=1 AND ts+ttr<?

Categories : Python

How to use query in android sqlite database
cursor = database.rawQuery("select d.division_id, d.name from division d, division_circle_assoc dca where d.division_id = dca.division_id and dca.circle_id = 1", null); and String[] columns = new String[] { KEY_D_ID, KEY_NAME}; String whereClause = KEY_D_ID + "=" + KEY_DD_ID +" AND "+ KEY_C_ID +"= 1"; Cursor cursor = mDb.query(true, DIVISION + " INNER JOIN "+ DIVISION_CIRCLE, columns, whereClause, null, null, null, null, null);

Categories : Android

Strange result in SQLite query
Select idRuleForeign... returns multiple results, yes ({1, 2, 3}). However, you then say "give me the rule where idRule = {SET}", and sql doesnt like this. I believe what is happening is that it is instead taking the first result only and giving you that. The solution is to use joins. Inner selects like that, while work most of the time, can REALLY slow down your query. If I got my syntax correct, the following should do what you need: SELECT r.rule FROM rules r JOIN rulesXfilter rf ON r.idRule = rf.idRuleForeign JOIN filters f ON f.idFilter = rf.idFilterForeign WHERE f.name = 'Filter1'

Categories : Sqlite

How to make recursive query in SQLite?
SQLite doesn't support recursive CTEs (or CTEs at all for that matter), there is no WITH in SQLite. Since you don't know how deep it goes, you can't use the standard JOIN trick to fake the recursive CTE. You have to do it the hard way and implement the recursion in your client code: Grab the initial row and the sub-part IDs. Grab the rows and sub-part IDs for the sub-parts. Repeat until nothing comes back.

Categories : Java

How to drop whole sqlite database without using query?
To drop table it's simple query. DROP TABLE IF EXISTS TableName Refer Phonegap API Documentation Hope that helps.

Categories : SQL

Update query is not working in sqlite
Try stdDB.execSQL("Update student set name = '"+get_new_name + "' where id = "+get_std_for_update); or stdDB.execSQL("Update student set name = ""+get_new_name + "" where id = "+get_std_for_update); Please note I added quotes and also I added a space after your where clause.

Categories : Android

Sqlite query for multiple result
Try sending List<String> public List<String> getItemNameRbPrice(long lprice) throws SQLException{ String[] column = new String[]{Pro_ID, Pro_Name, Pro_Price, Pro_Description, Pro_Date}; Cursor c = ourDatabase.query(TABLE_NAME, column, Pro_Price + "=" + lprice, null, null, null, null); List<String> lst = new ArrayList<String>(); if (cursor.moveToFirst()) { do { String name = c.getString(1); lst.add(name); Log.v(name,name + ("zz")); } while (cursor.moveToNext()); } return lst; }

Categories : Android

Android SQLite query split?
The first query is fine, your second example is just making 2 queries do the job of the first one. I think your really asking is how to get the respective columns into respective array lists, if so see One column to array SQLite Hope this helps.

Categories : Android

What is the appropriate Way to Store Returned Sqlite Query
The returned query should be a String array so I figured it out using the code below. From the database handler I have to return List<Menu> getItemsAsArray(String Table_Name), then I have to put it in a loop to access the returned list and put it in a mashmap. Then store it, ArrayList<HashMap<String, ?>> values2. Then finally I have to access it through: values2.get(position).get(TAG).toString()

Categories : Java

Run Query with Data condition Sqlite
DateTime columns should be numeric and not integer for SQLite. http://www.sqlite.org/datatype3.html You have to convert the string to a date for it to work in conditions. SELECT * FROM Table WHERE DateField BETWEEN Date('01/01/2012') AND Date('01/02/2012') EDIT: Not sure if this will help but give it a try. SELECT strftime('%s',Total_Flight_Time)-strftime('%s','00:00:00') AS TimeDelta, SUM(TimeDelta) AS TimeSum, time(TimeSum,'unixepoch') AS FlightTime FROM Flights WHERE Date BETWEEN Date('01/01/2012') AND Date('01/02/2012')

Categories : Android

how to sqlite query to core data
The most flexible method for "group by"-like queries is the NSFetchedResultsController. Please see my answer of a couple of days ago, which should help you. To solve the problem of subgrouping based on more than one attribute, you just use the sectionNameKeyPath as a subgroup and do the other grouping from there after fetching. Alternatively, consider putting the attributes you need into a different entity and group by that entity.

Categories : Iphone

New to sqlite and database work, how do I do this query?
Give this a try: SELECT DOMAIN_VALUE.DMV_VALUE_1 FROM DOMAIN_VALUE INNER JOIN DOMAIN ON DOMAIN_VALUE.DMV_ID = DOMAIN.DMN_ID WHERE DOMAIN.DMN_LIST_COLS ='1'; If DOMAIN.DMN_LIST_COLS contains actual numbers instead of text, you will want to remove the single quotes surrounding the 1 in the WHERE statement.

Categories : Sqlite

Where exactly in Activity to query the SQLite database?
tTry something like this: in onResume() put if(db==null) db=dbAdapter.getReadableDatabase(); and in onPause() if(db!=null) { db.close; db=null; } Also i think you should study this article in detail, it will give you insisting for this problem and every next app you will be building. http://developer.android.com/reference/android/app/Activity.html it has a diagram of the activity lifecycle. This way you will know when is onResume,onPause called etc, and you will know where to put the code. Same thing here but with more explanation i think: http://developer.android.com/training/basics/activity-lifecycle/starting.html

Categories : Android

sqlite query to get earliest date
Try joining on a sub-query rather than using a correlated sub-query in the WHERE clause. SELECT (CASE WHEN cc.id IS NULL THEN dc.id ELSE cc.id END) AS id, l.CALL,l.QSO_DATE,cc.prefix,l.state,l.QSL_RCVD,l.Band,l.Mode, (CASE WHEN CC.Country IS NULL THEN dc.Country ELSE cc.Country END) AS country, (CASE WHEN CC.Country IS NULL THEN 'Y' ELSE 'N' END) AS 'deleted', (CASE WHEN CC.flags IS NULL THEN dc.flags ELSE cc.flags END) AS 'flag' FROM (SELECT dxcc, MIN(qslrdate) AS qslrdate FROM lotw GROUP BY dxcc) AS qslr INNER JOIN lotw AS l ON l.dxcc = qslr.dxcc AND l.qslrdate = qslr.qslrdate LEFT OUTER JOIN CountryCode AS cc on cc.code = l.dxcc LEFT OUTER JOIN DeleteCountry AS dc on dc.code = l.dxcc WHERE l.DXCC > '' GROUP BY CC.Country,dc.Country ORDER BY cc.COUNTRY,dc.COUNT

Categories : SQL



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