大约有 5,881 项符合查询结果（耗时：0.0194秒） [XML]
How to use DISTINCT and ORDER BY in same SELECT statement?
..., such as Order, event, etc. so if you have (for example) a column in your table called Event you can write [Event] instead of Event to stop SQL throwing a parse error.
– Ben Maxfield
Oct 24 '16 at 21:26
...
Multiline string literal in C#
... to form a verbatim string literal:
string query = @"SELECT foo, bar
FROM table
WHERE id = 42";
You also do not have to escape special characters when you use this method, except for double quotes as shown in Jon Skeet's answer.
...
What is Lazy Loading?
...ded.
I.e. suppose you needed to have a record which has a join of several tables. If you fetched it all at once it would take longer than if you would fetch say only the main table. Using lazy-loading the rest of the information will be fetched only if it is needed. So it is actually 'efficient-loa...
Mac SQLite editor [closed]
... Unless I'm missing something, it doesn't allow you to alter existing tables.
– mahdaeng
Dec 12 '11 at 20:54
1
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what is the difference between OLE DB and ODBC data sources?
...nt times.
ODBC
ODBC is an industry-wide standard interface for accessing table-like data. It was primarily developed for databases and presents data in collections of records, each of which is grouped into a collection of fields. Each field has its own data type suitable to the type of data it con...
Floating elements within a div, floats outside of div. Why?
...to support old browsers, or using other block-level displays like display: table.
Solution: BFC roots
There is an exception to the problematic behavior defined at the beginning: if a block element establishes a Block Formatting Context (is a BFC root), then it will also wrap its floating contents....
POSTing a @OneToMany sub-resource association in Spring Data REST
...
This worked for me. Just make sure the author.post is writable (for example by having a setter or @JsonValue annotation)
– scheffield
May 28 '15 at 3:14
1
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Is it possible to break a long line to multiple lines in Python [duplicate]
...t a list of strings instead of one long string:
queryText= "SELECT * FROM TABLE1 AS T1"\
"JOIN TABLE2 AS T2 ON T1.SOMETHING = T2.SOMETHING"\
"JOIN TABLE3 AS T3 ON T3.SOMETHING = T2.SOMETHING"\
"WHERE SOMETHING BETWEEN <WHATEVER> AND <WHATEVER ELSE>"\
"ORDER BY WHATEVERS DESC"
kinda li...
How can I escape a double quote inside double quotes?
..." sometimes
In your example, I would do it something like this:
$ dbtable=example
$ dbload='load data local infile "'"'gfpoint.csv'"'" into '"table $dbtable FIELDS TERMINATED BY ',' ENCLOSED BY '"'"'"' LINES "'TERMINATED BY "'"'\n'"'" IGNORE 1 LINES'
$ echo $dbload
which produces the follow...
can we use xpath with BeautifulSoup?
...formbody')
for elem in td_empformbody(tree):
# Do something with these table cells.
Coming full circle: BeautifulSoup itself does have very complete CSS selector support:
for cell in soup.select('table#foobar td.empformbody'):
# Do something with these table cells.
...