大约有 43,000 项符合查询结果（耗时：0.0338秒） [XML]
How to pass boolean values to a PowerShell script from a command prompt
... accept
booleans or numbers, use $true, $false, 1 or 0 instead.
At line:1 char:36
+ function f( [bool]$b ) { $b }; f -b <<<< '$false'
+ CategoryInfo : InvalidData: (:) [f], ParentContainsErrorRecordException
+ FullyQualifiedErrorId : ParameterArgumentTransformationErro...
Expert R users, what's in your .Rprofile? [closed]
...se it might breaks my coauthors' code, I wish it was the default. Why?
1) Character vectors use less memory (but only barely);
2) More importantly, we would avoid problems such as:
> x <- factor(c("a","b","c"))
> x
[1] a b c
Levels: a b c
> x <- c(x, "d")
> x
[1] "1" "2" "3" "...
How to change options of with jQuery?
Suppose a list of options is available, how do you update the <select> with new <option> s?
9 Answers
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Select last row in MySQL
How can I SELECT the last row in a MySQL table?
10 Answers
10
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SQLiteDatabase.query method
...
tableColumns
null for all columns as in SELECT * FROM ...
new String[] { "column1", "column2", ... } for specific columns as in SELECT column1, column2 FROM ... - you can also put complex expressions here:
new String[] { "(SELECT max(column1) FROM table1) AS max" }...
Stock ticker symbol lookup API [closed]
...
hey is it possible to use wild char in the query? tried % and * but no luck...
– NightWolf
Jun 20 '11 at 5:22
2
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Get list of all tables in Oracle?
...
SELECT owner, table_name
FROM dba_tables
This is assuming that you have access to the DBA_TABLES data dictionary view. If you do not have those privileges but need them, you can request that the DBA explicitly grants you...
How do I find duplicate values in a table in Oracle?
...then use a HAVING clause to find values that appear greater than one time.
SELECT column_name, COUNT(column_name)
FROM table_name
GROUP BY column_name
HAVING COUNT(column_name) > 1;
share
|
impr...
SELECT * FROM X WHERE id IN (…) with Dapper ORM
...
Dapper supports this directly. For example...
string sql = "SELECT * FROM SomeTable WHERE id IN @ids"
var results = conn.Query(sql, new { ids = new[] { 1, 2, 3, 4, 5 }});
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|
imp...
Why do I get “unresolved external symbol” errors when using templates? [duplicate]
...ings like basic_string<T> you're only ever going to be using it with char or wchar_t so if putting all the implementation in the header is a concern, instantiating it in the cpp is an option. The code is yours to command, not vice-versa.
– shoosh
Oct 31 ...