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How do I check if a SQL Server text column is empty?
...ould add my solution.
This is the where clause that worked for me.
WHERE xyz LIKE CAST('% %' as text)
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Extract a regular expression match
...put if there is not a match in all positions
> txt <- c("aaa12xxx","xyz")
> regmatches(txt,regexpr("[0-9]+",txt)) # could cause problems
[1] "12"
> gsub("[^0-9]", "", txt)
[1] "12" ""
> str_extract(txt, "[0-9]+")
[1] "12" NA
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Difference between spring @Controller and @RestController annotation
... edited Apr 15 '19 at 6:06
xyz
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answered Jun 27 '17 at 11:54
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Test if something is not undefined in JavaScript
...stead of a useful message about an "un-caught exception @ line 123 of file xyz.js". Eventually a second developer will probably comment out the console.log() statement, making it more difficult for a 3rd developer to come in and fix a bug happening deep within doSomething().
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Git: “please tell me who you are” error
...o-detect email address.
By default it takes your system username like abc@xyz.none.
So you need to set your email like below:
git config user.email "someone@gmail.com"
After setting email you can run the git commands and commit your changes.
git init
git add *
git commit -m "some init msg"
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Shell script while read line loop stops after the first line
...tdin is preferred.
#!/bin/bash
while read ONELINE ; do
ssh ubuntu@host_xyz </dev/null <<EOF 2>&1 | filter_pgm
echo "Hi, $ONELINE. You come here often?"
process_response_pgm
EOF
if [ ${PIPESTATUS[0]} -ne 0 ] ; then
echo "aborting loop"
exit ${PIPESTATUS[0]}
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Find where java class is loaded from
... edited Feb 6 '17 at 10:43
xyz
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answered Oct 23 '08 at 7:16
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App Inventor 2 拓展参考文档 · App Inventor 2 中文网
... 开通VIP 搜索 App Inventor 2 拓展参考文档
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PDB文件：每个开发人员都必须知道的 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...的modules窗口的symbol file列可以查看PDB的load顺序。第一个搜索的路径是binary所在的路径，如果不在binary所在的路径，则查找binary中hardcode记录的build目录，例如obj\debug\*.pdb, 如果以上两个路径都没有找到PDB，则根据symbol server的设置...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
... 开通VIP 搜索 App Inventor 2 拓展参考文档
中文网拓展
第三方拓展
工具
AI人工智能
UI界面
...