Database
A database is a structured set of data held in a computer, most often a server. Databases use a database management system (DBMS) that interacts with users, similar to a lookup table. Modern databases are designed to allow for creation, querying, updating, and administration of the data it holds.
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This page
https://github.com/pingcap/tidb/blob/master/sql/mysql-compatibility.md
on
https://github.com/pingcap/tidb
is not found
also, auto increment counter supported? would like to chk out the difference between the two
I noticed a bug in the html_to_sheet function. When reading cells that are empty, the cell index is correctly incremented, but if the cell has HTML tags and is observed to be empty after stripping the tags, the cell index is not incremented. This results in misalignment of the subsequent cells:
https://github.com/SheetJS/js-xlsx/blob/e3c5eac99c3b2be6929adfca455c1be87fab792b/xlsx.js#L18956-L18
From MDN:
- Chrome has an "Intent to Deprecate and Remove the XSS Auditor"
- Firefox have not, and will not implement
X-XSS-Protection- Edge have [retired their X
The contribution guide is missing information detailing Rust and Typescript.
See example below. Best plan is a lookup join, but we don't get that with the semi-join. The reason is that each side is projecting a tuple, and we are constraining those to be equal. A rule that detects this projection and converts to multiple equalities should fix this.
exec-ddl
CREATE TABLE ab (
a INT,
b INT,
PRIMARY KEY (a,b)
)
----
exec-ddl
CREATE TABLE cd (
c INT
Issue type:
[ ] question
[ ] bug report
[ ] feature request
[x] documentation issue
Database system/driver:
[ ] cordova
[ ] mongodb
[ ] mssql
[ ] mysql / mariadb
[ ] oracle
[x] postgres
[ ] cockroachdb
[ ] sqlite
[ ] sqljs
[ ] react-native
[ ] expo
TypeORM version:
[x] latest
[ ] @next
[ ] 0.x.x (or put your version here)
Describe the bug
When the elevated database user account does not have permission to create a schema, it cannot establish a connection with an existing database.
But when I provided the root account, I successfully established a connection with the database, but prisma created a schema called prisma.
Look like this:
.
I'm not sure what the canonical
Issue
When using a map/reduce function that emits { _id: null }, the returned doc is the "emitting" document instead of null.
The result is what I would expect when _id is not defined; but _id is defined and set to null.
Info
- Environment: browser
- Platform: Chrome
- Adapter: IndexedDB
- Server: CouchDB 2.3.1
Reproduce
The following design doc (modified to
:computer: 🔄 :iphone: A realtime Database for JavaScript Applications
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Updated
Dec 23, 2019 - TypeScript
Describe the new feature
I love how an image in a blob column con be viewed live in the "Edit Content" window. However my images are often big and by default the window only shows a small part of it. I need to scroll horizontally and/or vertically to see different things in the image. It would be great
query having eq function in condition, gives weird error message.
Example query:
upsert {
query {
me(func: eq(name, "Animesh")) {
u as uid
n as name
}
}
mutation @if(eq(n, "Animesh")) {
set {
uid(u) <name> "Ashish" .
}
}
}
Example error:
details = "while parsing query: "{\n me(func: eq(name, \"Animesh\")) {\n
Following the README for inserting new items on an array, gives error; insert is not existent; should be corrected to push
Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.
Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the
https://github.com/LeCoupa/awesome-cheatsheets/blob/master/backend/node.js#L77 should be more like
const foo = require('./subfolder/foo.js')
console.log('foo "%s"', foo) // "foo"
// now grab the "module" wrapper around './foo.js'
const fooModule = require.cache[require.resolve('./subfolder/foo.js')]
console.log('foo module', fooModule)
// load module ./bar relative to ./foo
//There appears to be a race condition....
If you are trying to do a: user.auth(pair) then user.get.put; user.leave
Then it works if, and only if, you wait for the ack on the put,
If you don't wait for the ack, then you get a "No! Unverified Data" message, probably because with Gun's state its no longer logged in.
Personally ... I think its a bug/design flaw that Gun uses state in the g
The encryption section in Java docs https://realm.io/docs/java/latest/#encryption leads to an example that doesn't properly provide a best practice solution for how to store keys used for encryption.
超级表STable的删除有方便的办法吗?
必须先将通过STable创建的表先删除,然后才能删除超级表。当级联表很多时就麻烦了,除非写代码来删除。
My Environment
- ArangoDB Version: 3.5.0
- Storage Engine: RocksDB
- Deployment Mode: Single Server
- Deployment Strategy: Manual Start
- Configuration: Nothing special
- Infrastructure: My laptop
- Operating System: Ubuntu 18.04
- Total RAM in your machine: 10Gb in VM, 32GB total
- _
Issue description
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📚 C/C++ 技术面试基础知识总结,包括语言、程序库、数据结构、算法、系统、网络、链接装载库等知识及面试经验、招聘、内推等信息。
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Updated
Dec 23, 2019 - C++
pgcli depends on humanize which is https://github.com/jmoiron/humanize.
The current version has a slightly odd behavior of rounding down unexpectedly:
In [11]: humanize.naturaltime(datetime.timedelta(seconds=120))
Out[11]: '2 minutes ago'
In [12]: humanize.naturaltime(datetime.timedelta(seconds=119.9))
A curated list of awesome big data frameworks, ressources and other awesomeness.
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Updated
Dec 23, 2019
Multi-line queries have a prompt_continuation (or not currently, due to issue 681, but that's beside the point). But even with prompt_continuation set to an empty string, it starts the next line indented, even when it's just due to wrapping at the edge of the terminal window:
db> select "example text that wraps onto the nex
t line";
I often copy/paste my query fr
There is a document describing how to migrate an existing etcd cluster from HTTP communication to encrypted HTTPS.
The document uses v2-based CLI, some of those commands have different args or output format in their v3 equivalent, and some of them (like
etcdctl cluster-health) doesn't seem to exist in v3. The documen