web-sql

问题 Been at this for hours and hours without end debugging why my CREATE TABLE statement failed. Tested it within a MySQL database and it works just fine. But for some reason all my SELECT's can't get my login table like it doesn't exists(The error says). Here is my SQL for creating the table. CREATE TABLE IF NOT EXISTS login( id SMALLINT NOT NULL PRIMARY KEY AUTO_INCREMENT, user_type SMALLINT NOT NULL, user_data text NOT NULL, created_on datetime NOT NULL DEFAULT "0000-00-00 00:00:00" ); I just

问题 I need to get ALL the tables in the database and then I delete them one by one. However each DROP TABLE is asnyc. Most importantly the returned promise should only be resolved when all the tables have been dropped. clear: function() { var dfd = $.Deferred(); var sql = "SELECT name FROM sqlite_master WHERE type='table' AND name != ?", args = ["__WebKitDatabaseInfoTable__"]; var dbTableNamesResult = function(tx, result) { var dropSql = ""; for (var i = 0; i < result.rows.length; i++) { dropSql

问题 So I am writing a web app that needs to store ~40MB of offline data in a offline Web SQL database. It needs to work in Chrome (desktop), Safari (desktop and mobile) and android's browser. Now I know that Web SQL is supported in these browsers and I know since which versions but i need to know how much storage is allowed. Safari desktop supports 500MB of database storage. Safari mobile supports 50MB of database storage. However I have spent literally hours searching everywhere to find out what

问题 I just noticed that if you're inserting data into WebSQL, and je hit the maximum size-limit, the iPad will popup the user with an alert asking if you want to increase the size. However, even if you approve, the current transaction will rollback. I was wondering if there is anything that can be done to prevent the rolling back, so you can just continue ? Here is the test code. The code that actually does the rollback is db.transaction(function (tx) { ... // create the table // ... for( var i =

问题 In WebSQL, I have this code tx.executeSql('select * from TABLE where FIELD IN (? ,? ,?) ;', ['REGULAR', 'FULL' , 'CONTRACTUAL' ]) Is there a similar construct in IndexedDB? I was looking at the IDBKeyRange.bound but just would like to make sure that it will match up. 回答1: You cannot perform the equivalent of field = value1 or field = value2 in indexedDB. Off the top of my head, here is a workaround. Use integer constants to represent the categories of FIELD. For example, 1 for REGULAR, 2 for

问题 I need to show on an Webpage all my Tables in my WebSQL-DB. But I start first with JavaScript and WebSQL some Days before. Database = DATABASE Tables inside = Table1, Table2, Table3 This is my code: <script> var db = openDatabase('DATABASE', '1.0', 'myDB', 2 * 1024 * 1024); db.transaction( function(tx) { tx.executeSql("SELECT * FROM DATABASE WHERE type = 'table'"), [], function(tx, results) { var len = results.rows.length; var i; for(i=0; i<len; i++) { alert(results.rows.item(i)); } } } ); <

问题 This is for a phonegap angular app. I would have thought binding to the db query return, result.rows in my case would be possible but it seems like it is not. The only way I could get this to work was with the commented out code where I manually push the data into an array row by row. Is this the only way? The actually error received by binding to .rows is: Error: Duplicates in a repeater are not allowed. Repeater: item in items key: undefined:undefined The service: // only portion of code

问题 Does anyone have any data on the supposed "no-limit" WebSQL feature of a homescreen web app in iOS7? Using storage abuser I have been able to store persistantly 450MB on my homescreen Safari web app until it continually crashes on startup. I noticed it doesn't ask the user for permission too which is great. Anyone else had any other experiences with it yet? Curious to see what the true upper limit is. 来源： https://stackoverflow.com/questions/25425016/achieving-500mb-websql-ios-safari-storage

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 6 years ago . I want to create infinite scroll in jquery mobile web application.I want to scroll the page without using ajax.Is there any possibility to do that? 回答1: If your data isn't really infinite, you may store everything in the page and show the ones that needs to be shown. For example (not tested, but to give you an

问题 I want to return multiple rows as an array from a particular table in a database in WebSQL inside a javaScript function. Below is my code. function getCustomerAccountDetails(){ var dataset; db.transaction(function(tx) { tx.executeSql('SELECT * FROM contacts', [], function(tx, results) { dataset = results.rows; }); }); return dataset } Any suggestions? 回答1: I just managed to do that using Return a COUNT from a WebSQL query in a javaScript function According to the link, using jQuery it goes