大约有 40,000 项符合查询结果（耗时：0.0136秒） [XML]
How do I get textual contents from BLOB in Oracle SQL
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First of all, you may want to store text in CLOB/NCLOB columns instead of BLOB, which is designed for binary data (your query would work with a CLOB, by the way).
The following query will let you see the first 32767 characters (at mo...
Splitting string into multiple rows in Oracle
...ct 108 Name, 'test' Project, 'Err1, Err2, Err3' Error from dual
union all
select 109, 'test2', 'Err1' from dual
)
select distinct
t.name, t.project,
trim(regexp_substr(t.error, '[^,]+', 1, levels.column_value)) as error
from
temp t,
table(cast(multiset(select level from dual conne...
How can one change the timestamp of an old commit in Git?
...c hash of the commit you're looking to fix.
This will invalidate that and all future hashes.
Example:
If you wanted to change the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0, you could do so with something like this:
git filter-branch --env-filter \
'if [ $GIT_COMMIT = 119f9ecf5...
How do you detect Credit card type based on number?
...rds; there are other cards issued using the MasterCard system that do not fall into this IIN range. In 2016, they will add numbers in the range (222100-272099).
American Express: ^3[47][0-9]{5,}$ American Express card numbers start with 34 or 37.
Diners Club: ^3(?:0[0-5]|[68][0-9])[0-9]{4,}$ Dine...
Fetch the row which has the Max value for a column
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This will retrieve all rows for which the my_date column value is equal to the maximum value of my_date for that userid. This may retrieve multiple rows for the userid where the maximum date is on multiple rows.
select userid,
my_date,
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PHP convert date format dd/mm/yyyy => yyyy-mm-dd [duplicate]
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This is the most flexible solution to all date problems. How could i miss this for all the years. Thanks!
– Arne L
Oct 16 '19 at 12:11
add...
App Inventor 2 JSON数据解析教程 - 解析API返回的JSON数据 · App Inventor 2 中文网
... path（高级技巧）
list by walking key path 配合 walk all at level 可以一步到位：
提取所有 first_name：
global data = Web1.JsonTextDecodeWithDictionaries(global_responseContent)
global firstNames = walkKeyPath(global_data, createList("people", "walk all at level", ...
How to convert TimeStamp to Date in Java?
...e date is in milliseconds and the timestamp is in seconds ! Same think for all other convertion ! It's good ?
– VincentLamoute
Apr 19 '13 at 14:43
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Save Screen (program) output to a file
I need to save the whole output of Screen to a file to check later all the content.
11 Answers
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How to select records from last 24 hours using SQL?
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If the records are stored as DATETIME, this will select all records from the previous date, disregarding the time part. Been run at 23:59:59, the query will return all records for the last 48 hours, not 24.
– Quassnoi
Dec 11 '09 at 15:02
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