Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Login
Remember
Register
Ask
Q&A
All Activity
Hot!
Unanswered
Tags
Users
Ask a Question
Ask a Question
Categories
All categories
Topic[话题] (13)
Life[生活] (4)
Technique[技术] (2.1m)
Idea[创意] (3)
Jobs[工作] (2)
Others[杂七杂八] (18)
Code Example[编程示例] (0)
Recent questions tagged database
0
votes
1.2k
views
1
answer
database - How to Open/Close SQLite db in Android Properly
I have an app that functions properly and does not force close or crash. But when I look at LogCat, it ... = dbHelper.getWritableDatabase(); } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.0k
views
1
answer
database design - Mysql, storing multiple value in single column from another table
Bear with me, im really bad at explaining thing and i dont even know an appropriate title for this problem Ok guys ... good way to store a data See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.2k
views
1
answer
database - Cloud Firestore document locking
To ensure exclusive use of a Cloud Firestore document in a shared setting, is it sufficient to read, then ... lockedBy') within a transaction? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - How to Open/Close SQLite db in Android Properly
I have an app that functions properly and does not force close or crash. But when I look at LogCat, it ... = dbHelper.getWritableDatabase(); } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
885
views
1
answer
database design - Mysql, storing multiple value in single column from another table
Bear with me, im really bad at explaining thing and i dont even know an appropriate title for this problem Ok guys ... good way to store a data See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - Cloud Firestore document locking
To ensure exclusive use of a Cloud Firestore document in a shared setting, is it sufficient to read, then ... lockedBy') within a transaction? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
997
views
1
answer
database - How to Open/Close SQLite db in Android Properly
I have an app that functions properly and does not force close or crash. But when I look at LogCat, it ... = dbHelper.getWritableDatabase(); } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
885
views
1
answer
database design - Mysql, storing multiple value in single column from another table
Bear with me, im really bad at explaining thing and i dont even know an appropriate title for this problem Ok guys ... good way to store a data See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.3k
views
1
answer
database - Cloud Firestore document locking
To ensure exclusive use of a Cloud Firestore document in a shared setting, is it sufficient to read, then ... lockedBy') within a transaction? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
993
views
1
answer
database - Rails: Is the version number in 'schema.rb' used for anything?
Now that Rails has timestamped migrations, the single version number at the top of /db/schema.rb seems pointless. ... schema definition ... end See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
964
views
1
answer
database - Is it possible to map a table name for a domain object dynamically in grails?
I have a domain that looks something like class Foo { String name static mapping = { table 'foo' } } but ... this is even possible? Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.2k
views
1
answer
database - How to Open/Close SQLite db in Android Properly
I have an app that functions properly and does not force close or crash. But when I look at LogCat, it ... = dbHelper.getWritableDatabase(); } See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
895
views
1
answer
database design - Mysql, storing multiple value in single column from another table
Bear with me, im really bad at explaining thing and i dont even know an appropriate title for this problem Ok guys ... good way to store a data See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.0k
views
1
answer
database - Cloud Firestore document locking
To ensure exclusive use of a Cloud Firestore document in a shared setting, is it sufficient to read, then ... lockedBy') within a transaction? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
944
views
1
answer
database - What Applications Don't Need ACID?
Sorry for the ignorant question, but what kind of applications wouldn't require an ACID compliant database server? ... or isolation. Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
865
views
1
answer
database - Simple password encryption
What is a good, simple encryption scheme for protecting passwords in a database? I don't necessarily need ... terribly slow or insecure. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - ROW_NUMBER() without over in SQL
Is there any way to use ROW_NUMBER() in SQL without using OVER, because I want to use sorting. I have a Grid ... to put order by using ROWNUM. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
894
views
1
answer
database - LIMITing an SQL JOIN
I am trying to limit the following SQL statement. SELECT expense.*, transaction.* FROM expense INNER JOIN ... and only one transaction. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - mongoose difference of findOneAndUpdate and update
What is the difference between findOneAndUpdate and update? Both accept criteria to query and doc to update. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - SQL query to find Nth highest salary
I am referring to following query to find Nth highest salary of a employee. select sal from emp t where &n ... and produces result ? Thank you. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.0k
views
1
answer
database - Django: How do I model a tree of heterogeneous data types?
I need to store a tree data structure in my database, for which I plan on using django-treebeard or possibly ... you very much for the answers. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
917
views
1
answer
database - setSelection on Spinner based on rowId
I have a Spinner View that's populated through a SimpleCursorAdapter. Based on the selection I need to save the ... the rowid in the database. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
924
views
1
answer
database - Performance of VIEW vs. SQL statement
I have a query that goes something like the following: select <field list> from <table list> where <join ... where sec_type_id = 494) ) See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
883
views
1
answer
database - Mysql storage engine for log table
What is the best storage engine to use for a log table on mysql? The table will have a couple if id ... it and recreate it. Any suggestions? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - What is CAS in NoSQL and how to use it?
Write operations on Couchbase accept a parameter cas (create and set). Also the return result object of any non-data ... me if I am wrong. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - Android Spinner Selected Item
I am populating a spinner from the database like this // Populating the City Spinner Cursor cities = db.cityList( ... city id from the database. See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.2k
views
1
answer
database - How can I recover from a missing blob in a Git repository?
I'm running Git 1.6.4.2. Garbage collection is failing saying "error: unable to find <SHA1>". I've ... is causing Git prune to retain it? See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
0
votes
1.1k
views
1
answer
database - Query last day, last week, last month SQLite
I have this table in my Android SQLite DB: CREATE TABLE statistics (subject TEXT, hits INTEGER, fails ... virtual device emulator? Thanks! See Question&Answers more detail:os...
asked
Oct 24, 2021
in
Technique[技术]
by
深蓝
(
71.8m
points)
database
Page:
« prev
1
2
3
4
5
6
7
8
9
10
11
...
37
next »
Ask a question:
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question
Just Browsing Browsing
[1] google cloud platform - Can not create gcp instance from machine image in a different project
[2] js判断null,'',undefined,但不包含0的函数有吗?
[3] vue 精度丢失如何处理啊
[4] python - discord py - message.mentions "else" makes nothing
[5] api接口总是报错,打开链接是这样
[6] vue怎么写put请求
[7] es中配置了ip限制后,无法访问api了,这里应该如何正确配置?
[8] python - AttributeError: 'str' object has no attribute 'year'
[9] c# - RDLC Report Error: Data retrieval failed for the subreport IIS Config
[10] javascript - Find an element by its id in the html file
2.1m
questions
2.1m
answers
60
comments
56.6k
users
Most popular tags
javascript
python
c#
java
How
android
c++
php
ios
html
sql
r
c
node.js
.net
iphone
asp.net
css
reactjs
jquery
ruby
What
Android
objective
mysql
linux
Is
git
Python
windows
Why
regex
angular
swift
amazon
excel
algorithm
macos
Java
visual
how
bash
Can
multithreading
PHP
Using
scala
angularjs
typescript
apache
spring
performance
postgresql
database
flutter
json
rust
arrays
C#
dart
vba
django
wpf
xml
vue.js
In
go
Get
google
jQuery
xcode
jsf
http
Google
mongodb
string
shell
oop
powershell
SQL
C++
security
assembly
docker
Javascript
Android:
Does
haskell
Convert
azure
debugging
delphi
vb.net
Spring
datetime
pandas
oracle
math
Django
联盟问答网站-Union QA website
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
在这了问答社区
DevDocs API Documentations
Xstack问答社区
生活宝问答社区
OverStack问答社区
Ostack问答社区
在这了问答社区
在哪了问答社区
Xstack问答社区
无极谷问答社区
TouSu问答社区
SQlite问答社区
Qi-U问答社区
MLink问答社区
Jonic问答社区
Jike问答社区
16892问答社区
Vigges问答社区
55276问答社区
OGeek问答社区
深圳家问答社区
深圳家问答社区
深圳家问答社区
Vigges问答社区
Vigges问答社区
在这了问答社区
DevDocs API Documentations
广告位招租
...