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POAndroid, SQLite: Inserting data in while clause is very slow
primarykey
Id
16608986
data
AcceptedAnswerId
16609263
AnswerCount
2
ClosedDate
CommentCount
1
CommunityOwnedDate
CreationDate
2013-05-17T12:24:23.407
FavoriteCount
1
LastActivityDate
2013-05-17T14:18:38.197
LastEditDate
2013-05-17T14:18:38.197
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Score
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ViewCount
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LastEditorDisplayName
text
Body
SOLUTION AT THE BOTTOM OF THE QUESTION I have a FTP Server with more than 3'000 pictures on it and I save the picture names to an ArrayList. After this I'd like to save them from arraylist to database and that is taking very very very very much time! See: With <pre><code> FTPFile[] files = ftpClient.listFiles(); for (FTPFile file : files) { imageNames.add(file.getName()); } </code></pre> I get a list of all those files and save them into the ArrayList imageNames. This is very fast and don't take more than 1 - maximum 2 seconds. Now I like to write this array backwards to my sqlite database. When I do this it takes extremly long to be finished! I waited more than 2 minutes for it... <pre><code> int i = imageNames.size() - 1; int q = 0; while(i >= 0){ String insert_arraylist = "INSERT INTO ARRAYLIST (STRING) VALUES ('"+imageNames.get(q)+"')"; db.execSQL(insert_arraylist); i--; q++; } </code></pre> So how can I speed up this inserting?? Thanks in advance! SOLUTION: (From more than 2 minutes to less than 3 seconds ;)) <pre><code> FTPFile[] files = ftpClient.listFiles(); insert_arraylist = ""; ContentValues con = new ContentValues(); for (FTPFile file : files) { imageUrls.add("http://192.168.99.104/GetThePicture/thumbs/"+file.getName()); } int i = imageUrls.size() - 1; int q = 0; db.beginTransaction(); try{ while(i >= 0){ String insert_arraylist = "INSERT INTO ARRAYLIST (STRING) VALUES ('"+imageUrls.get(q)+"')"; db.execSQL(insert_arraylist); i--; q++; } db.setTransactionSuccessful(); } catch(Exception e){ } finally { db.endTransaction(); } </code></pre>
Tags
<android><sqlite><arraylist><insert><ftp>
Title
Android, SQLite: Inserting data in while clause is very slow
singulars
PostAcceptedAnswerId
1. PO
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 PTAnswer
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1. This table or related slice is empty.
PostTypePostTypeId
1. PTQuestion
UserLastEditorUserId
1. USMSeiz5
UserOwnerUserId
1. USMSeiz5
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PostLinksPostIdRelatedPostId
1. PL
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1. This table or related slice is empty.
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1. This table or related slice is empty.
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1. PO
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 PTAnswer
2. PO
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1. VO
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 POAndroid, SQLite: Inserting data in while clause is very slow
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 This table or related slice is empty.
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 VTUpMod
CommentsPostId
1. COexecSQL is not for SELECT/INSERT/UPDATE/DELETE
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 POAndroid, SQLite: Inserting data in while clause is very slow
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 USSelvin

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