sqlite

问题 I am writing a android application using sqlite . There are many activities and one service. I use the DB from more than one thread. It works perfectly in Android 2.X , but once I run it in Android 3.X it always throws this error and Force Close : 05-04 22:17:04.815: I/SqliteDatabaseCpp(8774): sqlite returned: error code = 5, msg = database is locked, db=/data/data/xxx/databases/im 05-04 22:17:04.815: E/SqliteDatabaseCpp(8774): sqlite3_open_v2("/data/data/xxx/databases/im", &handle, 6, NULL)

问题 I am writing a android application using sqlite . There are many activities and one service. I use the DB from more than one thread. It works perfectly in Android 2.X , but once I run it in Android 3.X it always throws this error and Force Close : 05-04 22:17:04.815: I/SqliteDatabaseCpp(8774): sqlite returned: error code = 5, msg = database is locked, db=/data/data/xxx/databases/im 05-04 22:17:04.815: E/SqliteDatabaseCpp(8774): sqlite3_open_v2("/data/data/xxx/databases/im", &handle, 6, NULL)

问题 In my C# program, I am reading in about 350GB worth of zipped CSV files and storing the data in a SQLite v3 database. I'm using System.Data.SQLite from NuGet. My database is about 147GB at the moment, and I am getting an error when trying to run the next INSERT query: (778) os_win.c:41557: (665) winWrite2(D:\System.db) - The requested operation could not be completed due to a file system limitation. Error: near line 1: disk I/O error." The drive is 1.81TiB and has 1.37TiB free. The volume is

问题 In my C# program, I am reading in about 350GB worth of zipped CSV files and storing the data in a SQLite v3 database. I'm using System.Data.SQLite from NuGet. My database is about 147GB at the moment, and I am getting an error when trying to run the next INSERT query: (778) os_win.c:41557: (665) winWrite2(D:\System.db) - The requested operation could not be completed due to a file system limitation. Error: near line 1: disk I/O error." The drive is 1.81TiB and has 1.37TiB free. The volume is

问题 I want to run this query in Android Application : SELECT field1 FROM table1 where field1 = ?(enteredField1) AND field2 = ?(enteredField2) AND enteredField3 BETWEEN field3 , field4 ; my DB schema table1(field1, field2, field3, field4, field5) enteredField1 , 2 , 3 = are parameters which is to be checked. I hope I am clear with my question. here is the function - public boolean checkData(String task1, String dte1, String startTime1 ) { // field 1 = task , fiels 2 = dte, field 3 = startHr, field

问题 Hello I have inserted some dates in my database. When I use sqlite3 in the format YYY-MM-DD in another table when I do my query like SELECT * FROM SDay WHERE strftime('%Y-%m-%d', date)>=strftime('%Y-%m-%d','2013-02-21') AND strftime('%Y-%m-%d', date)<strftime('%Y-%m-%d','2013-09-15') it works just fine. On the other hand when i use the format YYY-MM in another table then the SELECT * FROM SMonth WHERE strftime('%Y-%m', date)>=strftime('%Y-%m','2013-02') AND strftime('%Y-%m', date)<strftime('

问题 I am attempting to write an application in which I have two text fields that I will be using for input. The input taken from the text fields are being initialized as a string. So what I want to accomplish is: Create an SQLite database (file) that will be saved within the Xcode project (I'm not sure where it can be saved to, but I would need to be able to read it and write to it). I then want to place the strings (from the text field inputs) into the SQLite table, which will only have two

问题 I am attempting to write an application in which I have two text fields that I will be using for input. The input taken from the text fields are being initialized as a string. So what I want to accomplish is: Create an SQLite database (file) that will be saved within the Xcode project (I'm not sure where it can be saved to, but I would need to be able to read it and write to it). I then want to place the strings (from the text field inputs) into the SQLite table, which will only have two

问题 I wrote an application (using Qt in C++) which inserts data into a SQLite database. Another application reads data from the same database, but I noticed that it is not possible to read uncommitted data. I would like instead to be able to read data even if it is not committed yet. Reading the SQLite documentation I found the pragma read_uncommitted which, from what I understand, should be what I need. Problem is that, even if I set that to true, I cannot get uncommitted data. I tried to run my

问题 I have a weird table call mytable , no column is primary. Name | Company | Position Michael Google Tester Michael Google Tester Michael Google Tester Peter Facebook Developer Peter Facebook Developer Peter Facebook Developer Peter Facebook Developer What I want Name | Company | Position Michael Google Tester Peter Facebook Developer With some solutions I found with the same question here, they did not work. For example: DELETE FROM mytable WHERE Name NOT IN (SELECT MAX(Name) FROM mytable