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PostgreSQL query to list all table names?
Is there any query available to list all tables in my Postgres DB.
7 Answers
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Commands out of sync; you can't run this command now
I am trying to execute my PHP code, which calls two MySQL queries via mysqli, and get the error "Commands out of sync; you can't run this command now".
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SQLite table constraint - unique on multiple columns
...t method, and not the insertWithOnConflict with the SQLiteDatabase.CONFLICT_REPLACE flag?
– Oleg Belousov
Jan 25 '14 at 16:23
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Gradle, “sourceCompatibility” vs “targetCompatibility”?
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if(JavaVersion.current() != JavaVersion.VERSION_1_8) throw new GradleException("This project requires Java 8, but it's running on "+JavaVersion.current()) This is how I sort this issue out, right in the beginning of the build.gradle file.
– Xerus
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Who sets response content-type in Spring MVC (@ResponseBody)
...operty>
</bean>
However, using this method you have to redefine all HttpMessageConverters, and also it doesn't work with <mvc:annotation-driven />.
So, perhaps the most convenient but ugly method is to intercept instantiation of the AnnotationMethodHandlerAdapter with BeanPostProce...
MongoDB aggregation framework match OR
...n' }] }
Like so, since the $match operator just takes what you would normally put into the find() function
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How to read a .xlsx file using the pandas Library in iPython?
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I usually create a dictionary containing a DataFrame for every sheet:
xl_file = pd.ExcelFile(file_name)
dfs = {sheet_name: xl_file.parse(sheet_name)
for sheet_name in xl_file.sheet_names}
Update: In pandas version...
WPF ToolBar: how to remove grip and overflow
...right. they are both grayed out, but we'd like them to not be displayed at all.
6 Answers
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How to hash a password
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I would REALLY recommend using SHA1. MD5 is a no-no unless you are maintaining backward compatibility with an existing system. In addition, make sure you put it in a using statement or call Clear() on it when you are done using the imp...
Can I inject a service into a directive in AngularJS?
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I had to add '_myData = myData' prior to the return {} and then reference the object as _myData inside of the link function.
– Jelling
Nov 28 '13 at 15:58
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