大约有 40,000 项符合查询结果(耗时:0.0277秒) [XML]
Jenkins配置自动发送邮件 - 项目管理 - 清泛网移动版 - 专注C/C++及内核技术
...mail-ext1 开通QQ的SMTP服务,需要发一条短信,qq会给你一个密码(不是你的QQ邮箱密码哦)2 安装Email Extension Plugin插件3 进入系统管理--系统设置3 1按照如下图设置首先找到Extended 1.开通QQ的SMTP服务,需要发一条短信,qq会给你一个...
Jenkins配置自动发送邮件 - 项目管理 - 清泛网 - 专注C/C++及内核技术
...mail-ext1 开通QQ的SMTP服务,需要发一条短信,qq会给你一个密码(不是你的QQ邮箱密码哦)2 安装Email Extension Plugin插件3 进入系统管理--系统设置3 1按照如下图设置首先找到Extended 1.开通QQ的SMTP服务,需要发一条短信,qq会给你一个...
Determine which MySQL configuration file is being used
Is there a command to determine which configuration file MySQL 5.0 is currently using?
15 Answers
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Best way to test if a row exists in a MySQL table
...
You could also try EXISTS:
SELECT EXISTS(SELECT * FROM table1 WHERE ...)
and per the documentation, you can SELECT anything.
Traditionally, an EXISTS subquery starts with SELECT *, but it could
begin with SELECT 5 or SELECT column1 or anything ...
Split function equivalent in T-SQL?
...AR(2048) = 'Mike/John/Miko/Matt'; DECLARE CaracString NVARCHAR(1) = '/'; SELECT * FROM dbo.FnSplitString (VarString, CaracString)
– fernando yevenes
Feb 8 '19 at 15:57
ad...
mysql_fetch_array()/mysql_fetch_assoc()/mysql_fetch_row()/mysql_num_rows etc… expects parameter 1 to
I am trying to select data from a MySQL table, but I get one of the following error messages:
31 Answers
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MySQL offset infinite rows
...er. This statement
retrieves all rows from the 96th row
to the last:
SELECT * FROM tbl LIMIT 95, 18446744073709551615;
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What are the options for storing hierarchical data in a relational database? [closed]
...lies? Perform a traversal on both sub-trees computing the intersection and union of the two sub-trees. The percent similar is the intersection divided by the union.
Transitive Closure: Walk the sub-tree and sum up the field(s) of interest, e.g. "How much aluminum is in a sub-assembly?"
Yes, you ca...
CSS “and” and “or”
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&& works by stringing-together multiple selectors like-so:
<div class="class1 class2"></div>
div.class1.class2
{
/* foo */
}
Another example:
<input type="radio" class="class1" />
input[type="radio"].class1
{
/* foo */
}
|| works by se...
MySQL: Insert record if not exists in table
...oDB;
Insert a record:
INSERT INTO table_listnames (name, address, tele)
SELECT * FROM (SELECT 'Rupert', 'Somewhere', '022') AS tmp
WHERE NOT EXISTS (
SELECT name FROM table_listnames WHERE name = 'Rupert'
) LIMIT 1;
Query OK, 1 row affected (0.00 sec)
Records: 1 Duplicates: 0 Warnings: 0
...
