大约有 42,000 项符合查询结果（耗时：0.0310秒） [XML]
Search an Oracle database for tables with specific column names?
...S SCHEMA_NAME
,TABLE_NAME
FROM SCHEMA1.COLS
WHERE COLUMN_NAME LIKE '%ID%'
UNION
SELECT DISTINCT
'SCHEMA2' AS SCHEMA_NAME
,TABLE_NAME
FROM SCHEMA2.COLS
WHERE COLUMN_NAME LIKE '%ID%'
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impr...
Can enums be subclassed to add new elements?
... no.
As an example of a real problem take weekdays, weekend days and, the union, days of week. We could define all days within days-of-week but then we would not be able to represent properties special to either weekdays and weekend-days.
What we could do, is have three enum types with a mapping b...
How to return result of a SELECT inside a function in PostgreSQL?
...hink you need a RETURN; before that END;, at least I did - but I'm doing a UNION so I'm not sure if that makes it different.
– yekta
Sep 4 '13 at 15:08
...
How do I make a Git commit in the past?
... your new commit. If you actually want your new file to be added via a new root commit (no parents), then you need something a bit different:
B---C---o---o---o master
git checkout master
git checkout --orphan new-root
git rm -rf .
git add path/to/file
GIT_AUTHOR_DATE='whenever' git commit
git ch...
What is the difference between a cer, pvk, and pfx file?
... of cryptographic information, including certificates, certificate chains, root authority certificates, and private keys. Its contents can be cryptographically protected (with passwords) to keep private keys private and preserve the integrity of root certificates.
Windows uses .pvk for a private ke...
ACE vs Boost vs POCO [closed]
...t time. There are other classes I could use but haven't tried, e.g. Data::MySQL (I'm happy with mysql++) and Net::HTTP (I'm happy with libCURL). I'll try out the rest of Poco eventually, but that's not a priority at this point.
...
How does one parse XML files? [closed]
... specific element, you can access child elements with the indexer: xmlDoc["Root"], and these can be chained: xmlDoc["Root"]["Folder"]["Item"] to dig down the hierarchy (although it's sensible to validate that these elements actually exist)
– Jason Williams
Mar ...
PostgreSQL error: Fatal: role “username” does not exist
...TE USER username;
eg. CREATE USER demo;
Assign privilege to user
GRANT ROOT TO username;
And then enable login that user, so you can run e.g.: psql template1, from normal $ terminal:
ALTER ROLE username WITH LOGIN;
s...
Why use a READ UNCOMMITTED isolation level?
... will in practice be writing corrupted data. Also the article stated that "MySQL, which grew up on web apps, is much less pessimistic out of the box than SQL Server". Not true, Sql Server works at read-commited level by default, while MySQL works at repeatable-reads by default, five levels away from...
Detecting when user has dismissed the soft keyboard
...gleAction: (shown: Boolean) -> Unit): KeyboardToggleListener? {
val root = findViewById<View>(android.R.id.content)
val listener = KeyboardToggleListener(root, onKeyboardToggleAction)
return root?.viewTreeObserver?.run {
addOnGlobalLayoutListener(listener)
listen...