大约有 41,000 项符合查询结果(耗时:0.0402秒) [XML]

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How to select rows that have current day's timestamp?

I am trying to select only today's records from a database table. 9 Answers 9 ...
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MySQL “Group By” and “Order By”

I want to be able to select a bunch of rows from a table of e-mails and group them by the from sender. My query looks like this: ...
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How to zero pad a sequence of integers in bash so that all have the same width?

...e small correction: strictly speaking, seq supports a subset of the format chars. that printf supports (and that subsets includes g, but not d). The behavior of characters d and g differs subtly in that d interprets 0-prefixed numbers strings as octal numbers and converts them to decimal, whereas g ...
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Getting back old copy paste behaviour in tmux, with mouse

... -g mode-mouse off set-option -g mouse-resize-pane off set-option -g mouse-select-pane off set-option -g mouse-select-window off # toggle mouse mode to allow mouse copy/paste # set mouse on with prefix m bind m \ set -g mode-mouse on \;\ set -g mouse-resize-pane on \;\ set -g mouse-selec...
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How do I calculate tables size in Oracle

...BLE_NAME FORMAT A32 COLUMN OBJECT_NAME FORMAT A32 COLUMN OWNER FORMAT A10 SELECT owner, table_name, TRUNC(sum(bytes)/1024/1024) Meg, ROUND( ratio_to_report( sum(bytes) ) over () * 100) Percent FROM (SELECT segment_name table_name, owner, bytes FROM dba_segments WHERE segment_type IN...
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How to initialize a struct in accordance with C programming language standards

...lize a struct this way: typedef struct Item { int a; float b; char* name; } Item; int main(void) { Item item = { 5, 2.2, "George" }; return 0; } An important thing to remember, at the moment you initialize even one object/ variable in the struct, all of its other variables wi...
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Select + copy text in a TextView?

Is there a way to allow the user to select / copy text in a TextView? I need the same functionality of EditText where you can long-press the control and get the popup options of select all / copy, but I need the control to look like a TextView. ...
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Select columns from result set of stored procedure

...stored procedure that returns 80 columns, and 300 rows. I want to write a select that gets 2 of those columns. Something like ...
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How do I capitalize first letter of first name and last name in C#?

... TextInfo.ToTitleCase() capitalizes the first character in each token of a string. If there is no need to maintain Acronym Uppercasing, then you should include ToLower(). string s = "JOHN DOE"; s = CultureInfo.CurrentCulture.TextInfo.ToTitleCase(s.ToLower()); // Produce...
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How does the Comma Operator work

...’t work since then the compiler just sees the comma operator between two char[], which cannot be overloaded. The code intentionally first calls the operator= and then subsequently operator, for each remaining element. – Konrad Rudolph Oct 9 '11 at 11:04 ...