alias

MySQL alias shorthand?

心不动则不痛 提交于 2019-12-01 18:30:07
I need to select all columns from two tables, but need to be able to differentiate between them in the result. Is there a shorthand method of giving each column in the result an alias? For example: SELECT t1.* AS t1.SOMETHING , t2.* AS SOMETHING_ELSE FROM TABLE1 INNER JOIN TABLE2 ON SOMETHING = SOMETHING_ELSE In the results, all columns from table one would be prefixes t1, while all results from table two would be prefixes t2. Any advice appreciated. Thanks. No, you'll need to name them explicitly. No, ALIAS is only for single columns. The only shorthand is to remove the AS : SELECT column_123

Using Alias In When Portion of a Case Statement in Oracle SQL

醉酒当歌 提交于 2019-12-01 17:56:41
I've been trying to look up for awhile now if it's possible to use an alias stated earlier in the select statement if it can be used in a case later in the case statement for Oracle SQL. Most results I find are about how to make an Alias based on a case statement which isn't the same problem. A quick example would be something like: Select TABLEA.SomeIDNumber AS "Id", case ID when 3 then 'foo' else 'bar' end AS "Results" FROM OMEGA.TABLEA It's really not that simple in the SQL Statement I'm creating (it's actually created based on a previous case statement and requires some joins on various

Multiple aliases on one-line Python import

安稳与你 提交于 2019-12-01 17:35:18
Can I import module in Python giving it two or more aliases in one line? With two lines this works: from time import process_time as tic from time import process_time as toc This doesn't work, but I would want to be able to write something like: from time import process_time as tic,toc You can do that with from time import process_time as tic, process_time as toc You could do from time import process_time as tic toc = tic 来源: https://stackoverflow.com/questions/36481111/multiple-aliases-on-one-line-python-import

Error Code: 1248. Every derived table must have its own alias No solution found for query

送分小仙女□ 提交于 2019-12-01 17:08:45
问题 I am getting an error while using this query in MySQL. The query logic is correct and I have tried it in Oracle and it's running fine, but I'm getting an error when running this in MySQL. I looked at previous questions on StackOverflow, but didn't find something to help me. Here is the query: select * from (select PM.ID, PM.Name, PM.TIMEOUT, PMS.PROCESS_MONITOR_ID, PMS.PROCESS_START_DATE from RATOR_IMP.PROCESS_MONITOR as PM JOIN RATOR_IMP.PROCESS_MONITOR_STATISTIC as PMS ON PM.ID = PMS

Using Alias In When Portion of a Case Statement in Oracle SQL

别说谁变了你拦得住时间么 提交于 2019-12-01 16:57:33
问题 I've been trying to look up for awhile now if it's possible to use an alias stated earlier in the select statement if it can be used in a case later in the case statement for Oracle SQL. Most results I find are about how to make an Alias based on a case statement which isn't the same problem. A quick example would be something like: Select TABLEA.SomeIDNumber AS "Id", case ID when 3 then 'foo' else 'bar' end AS "Results" FROM OMEGA.TABLEA It's really not that simple in the SQL Statement I'm

What is $? an alias for in Powershell?

こ雲淡風輕ζ 提交于 2019-12-01 16:21:39
Within a script I was shown today was the line: If ($?) { #do some stuff } I have never seen the dollar sign question mark alias $? before and am unable to ascertain via Google what it is for. When I execute it in a powershell window it typically returns True, however occasionally returns False. My testing seemed to suggest that it returns False when the code that precedes it executes in an error (and within the context of the script I saw it in this might make sense) so this is perhaps an alternative way to handle a TRY.. CATCH scenario. Example: PS C:\Users\me> $? True PS C:\Users\me> $?

Bash alias: command not found

心已入冬 提交于 2019-12-01 16:11:29
I'm trying to setup a simple alias to move me into my Developer folder on my machine. However, after setting it up, I get a weird error: -bash: dv: command not found I setup my alias in .bashrc like so: alias dv='cd Developer/' I use it by just typing dv , and then get that error. Does anyone see any syntax errors or something I'm missing here for aliases? Run bash and then try the command. Alternatively, put it in ~/.bash_profile which should be loaded automatically. .bashrc is only read on startup. If you just modified your .bashrc then you need to get a new shell or get your current shell

Possible to alias .NET namespaces in app.config?

时光毁灭记忆、已成空白 提交于 2019-12-01 15:48:23
ASP.NET has a feature that allows you to declare implicitly used namespaces in the web.config. <configuration> <system.web> <pages> <namespaces> <add namespace="System.Web.Mvc"/> </namespaces> </pages> </system.web> </configuration> I'm curious to know if configuration for other .net environments (like winforms, console apps, and in particular, silverlight applications) have this ability. If so , then the follow up question is whether we are able to alias a namespace in said configuration. The analog of this bit of code, but via configuration: using MyNamespace = System.Web.Mvc; edit: my

Bash alias: command not found

蹲街弑〆低调 提交于 2019-12-01 14:42:30
问题 I'm trying to setup a simple alias to move me into my Developer folder on my machine. However, after setting it up, I get a weird error: -bash: dv: command not found I setup my alias in .bashrc like so: alias dv='cd Developer/' I use it by just typing dv , and then get that error. Does anyone see any syntax errors or something I'm missing here for aliases? 回答1: Run bash and then try the command. Alternatively, put it in ~/.bash_profile which should be loaded automatically. 回答2: .bashrc is

How to change icon of alias created using applescript?

左心房为你撑大大i 提交于 2019-12-01 13:34:09
I have an applescript which creates a shortcut on a desktop to an executable on the file system. The excutable has the standard exec icon . Is it possible to change the icon to point to say an icns file ? I've read you can do it using a third party program as mentioned in Change icon of folder with AppleScript? but is it possible without using an external program to do this ? This is my script set source_file to (POSIX file "path to my exectuable") tell application "Finder" make new alias file at desktop to source_file set name result to "My Shortcut" end tell Note: I can also create the same