大约有 49,000 项符合查询结果（耗时：0.0401秒） [XML]
do { … } while (0) — what is it good for? [duplicate]
...
It helps to group multiple statements into a single one so that a function-like macro can actually be used as a function. Suppose you have:
#define FOO(n) foo(n);bar(n)
and you do:
void foobar(int n) {
if (n)
FOO(n);
}
the...
How to get the sizes of the tables of a MySQL database?
...ngth) / 1024 / 1024, 1) "DB Size in MB"
FROM information_schema.tables
GROUP BY table_schema;
Result
DB Name | DB Size in MB
mydatabase_wrdp 39.1
information_schema 0.0
You can get additional details in here.
...
Query to list number of records in each table in a database
... NOT LIKE 'dt%' AND
i.OBJECT_ID > 255 AND
i.index_id <= 1
GROUP BY
t.NAME, i.object_id, i.index_id, i.name, p.[Rows]
ORDER BY
object_name(i.object_id)
In my opinion, it's easier to handle than the sp_msforeachtable output.
...
How to set a value of a variable inside a template code?
...Error, "%r tag had invalid arguments" % tag_name
new_val, var_name = m.groups()
if not (new_val[0] == new_val[-1] and new_val[0] in ('"', "'")):
raise template.TemplateSyntaxError, "%r tag's argument should be in quotes" % tag_name
return SetVarNode(new_val[1:-1], var_name)
Thi...
Why rgb and not cmy? [closed]
...ough it doesn't matter what color model you use: the primary colors of one group are the secondary colors of the second one and viceversa.
P.D.: my father worked at graphic arts, this is why i know this... :-P
share
...
How to fix 'sudo: no tty present and no askpass program specified' error?
...olution I was what I was needing. A existing configuration line (for wheel group) also matched my sudo command but without the NOPASSWD: entry. Placing my new line after it gave it the priority, allowing no password use for the specific command I needed.
– anthony
...
Export/import jobs in Jenkins
...kins/jobs/-the-project-name-/config.xml
Owned by jenkins user and jenkins group with 644 permissions. Copying the file to and from here should work. I haven't tried changing it directly but have backed-up the config from this spot in case the project needs to be setup again.
...
MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...OR master_crc <> this_crc
OR ISNULL(master_crc) <> ISNULL(this_crc))
GROUP BY db, tbl;
BTW：多数情况下，只要比较「master_crc <> this_crc」就可以了。
MySQL主从服务器数据一致性的修复
通过在主服务器上运行pt-table-sync，它会重建数据，数据通过...
Configure apache to listen on port other than 80
... quick question: did you open up the inbound port in the security groups as you say you're on AWS ubuntu ?
– Shankar ARUL - jupyterdata.com
Aug 25 '15 at 13:33
1
...
Get program execution time in the shell
...tire pipeline as-is (by virtue of being a Bash keyword), you need to use a group command ({ ...; ...; }) to time multiple commands: time -p { i=x; while read line; do x=x; done < /path/to/file.txt; }
– mklement0
Oct 30 '16 at 3:55
...