sqlite

问题 Is it possible to do something like this: begin; insert into some_table (some_col, another_col) values ('a', 'b'); insert into some_table (some_col, another_col) values ('c', 'd'); ... commit; ...in HTML 5? With each transaction being async and having it's own callback, seems to me that it would be difficult to write a routine that inserts an unknown amount of rows, and then calls back when it has completed. 回答1: Here is sample code of how you do it. I tested in on recent versions of safari

问题 How to check where table is created in db database or not. var folder = Environment.GetFolderPath (Environment.SpecialFolder.Personal); SQLiteConnection db = new SQLiteConnection (System.IO.Path.Combine (folder,"note.db")); try{ var existTable = db.Query<TransationTable>("SELECT count(*) FROM sqlite_master WHERE type = 'Table' AND name = 'TransationTable' "); Console.WriteLine ("Count {0}",existTable.Count); if(existTable.Count == 0){ tableview.Hidden = true; lbl_NotFound.Hidden = false; }

问题 I have a C++ std::string which is encrypted using AES128 and want to write it into a sqllite database. I figured out already, that I have to escape ' characters with '' and " with "" , but there seems to be another problem. It says: unrecognized token: "'""\235\211g\264\376\247\3348( ]tu\202\346\360\226h\205D\322-\373\347y" My query looks like: UPDATE tablename SET column='""\235\211g\264\376\247\3348( ]tu\202\346\360\226h\205D\322-\373\347y\315\|`\3206\245\220j6 \215&\301ww/\222R\352]\253,

问题 It's not efficient to do two queries like SELECT * FROM TABLE WHERE clause and then DELETE * FROM TABLE WHERE clause . So I want to make DELETE query and return deleted rows (one query). I tried to do: DELETE OUTPUT DELETED.* FROM table WHERE clause But I have an error: SQLite exception: near "OUTPUT": syntax error How to make it correctly or maybe there is another alternative way to return deleted rows? 回答1: The DELETE statement has no OUTPUT clause. After doing the SELECT, all the important

问题 It's not efficient to do two queries like SELECT * FROM TABLE WHERE clause and then DELETE * FROM TABLE WHERE clause . So I want to make DELETE query and return deleted rows (one query). I tried to do: DELETE OUTPUT DELETED.* FROM table WHERE clause But I have an error: SQLite exception: near "OUTPUT": syntax error How to make it correctly or maybe there is another alternative way to return deleted rows? 回答1: The DELETE statement has no OUTPUT clause. After doing the SELECT, all the important

问题 Today I started coding a project that uses sqlite and when I tried to test it I received the java.lang.ClassFormatError: Invalid pc in LineNumberTable . Hope you can help me with it, because I'm just lost. I'v searched about this error, and came across some weird solutions to some weird causes. As I understand, none of them was causing my problem. I'm using "sqlitejdbc-v056" wich is inserted in my classpath. Edit: My JDK version is 1.7.0_03-b05 StackTrace: Exception in thread "main" java.lang

问题 I am trying to run some tests on my mapping using SQLite. My mappings look like the following: public class UserMap : BaseValidatableDomainMap<User> { public UserMap() { Table("blanka.[User]"); Id(x => x.Id).GeneratedBy.Identity(); Map(x => x.UserName); Map(x => x.FirstName); Map(x => x.MiddleName); Map(x => x.LastName); Map(x => x.EmailAddress); Map(x => x.OtherEmailAddress); Map(x => x.PhoneNumber); Map(x => x.City); References(x => x.Company, "CompanyId"); References(x => x.State, "StateId

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I want to develop an application based on SQLLite but I'm unable to find any tutorials. How to use system.data.sqlite in C#? Please recommend good tutorials. 回答1: You can find a tutorial for SQLite in this link: http://blog.tigrangasparian.com/2012/02/09/getting-started-with-sqlite-in-c-part-one/ You can learn

问题 I need to determine what is the equivalent for SQLite of the <=> operator in MySQL. Any idea? 回答1: The IS and IS NOT operators work like = and != except when one or both of the operands are NULL. In this case, if both operands are NULL, then the IS operator evaluates to 1 (true) and the IS NOT operator evaluates to 0 (false) http://www.sqlite.org/lang_expr.html#isisnot 回答2: I have just found the "IS" operator, but not sure if it has exactly the same behaviour? 来源： https://stackoverflow.com

问题 Long story short: I'm working on refactoring an old Android project of mine. Previously, it was using serialization, which was painfully slow and, from what I'm reading, a pretty lousy idea in general for Android apps. I'm looking for another way to persist both user-specific data as well and read-only data for the application. There is going to be a good deal of data on both sides and I'm not sure if there's a "good" way to store it. Basically, the app is a small RPG. There are a number of