I have a table t which contains a column called CMYN. But every cell in that column is enclosed by quotation marks. How can I update that column to get rid of the double quotation marks?
e.g. I want to change the column value from "APPLE" to APPLE
Thank you in advance!
It sounds like casting the column to symbol type is what you're after. See below.
q)table:([]sym:5#enlist"APPLE")
q)update`$sym from table
sym
-----
APPLE
APPLE
APPLE
APPLE
APPLE
Related
I've run into an interesting problem I'm hoping someone can shed some light on.
I'm trying to pull a unique list of names from an MS SQL Database - but the company has been sloppy with their names. They were tacking on a code to the end of last name for some users. I need to remove that code.
Example:
firstname lastname
John Doe
Mary Smith AST
Mike Jackson AST
Brian Astor
Jackie Masterson
In the example, "AST" is the code they tack on. It's not tacked on to all last names either. I need to get an output of just the last names without the code.
I would have expected this is a simple use of REPLACE. I tried:
select REPLACE(lastname, ' AST', '') from table
Note the leading space in the quotes for the search phrase... this does work to remove the "AST" appended to the last names.
However - my problem is that it will also remove anywhere AST appears at the BEGINNING of the field. So Brian Astor comes out as "Brian or" since the field started with AST. However... it correctly does not remove ast from the middle, so Jackie Masterson is fine.
Any ideas why it is ignoring the leading space in my search phrase for the beginning of the field? I've tried ltrim to eliminate the possibility the field has leading spaces.
Thanks!
Replace with an empty string will eliminate the searched string anywhere in your source string. So the behaviour is as expected.
If you only need to replace ' ast' at the end of your searched string, try something like this:
select replace(lastname + '$$$', ' AST$$$', '') from table
Of course you need to be sure that the $$$ appended don't appear by chance in your source string (lastname). Which I guess is not that likely.
I've looked into the underscore for drop/cut, but this only seems to remove the first or last n entries, not characters. Any ideas?
Depends on what you're using drop cut on.
Can you provide an example of your values?
Below shows how cut can be used on a sting and then a list of strings.
It uses each right to drop a value from each item.
http://code.kx.com/q/ref/adverbs/#each-right
q)1_"12456789"
"2456789"
q)
q)1_("12456789";"12456789")
"12456789"
q)
q)1_/:("12456789";"12456789")
"2456789"
"2456789"
#Connor Gervin had almost what I wanted, but if you want to cast back to a string, you can use `$(-3)_'string sym from tab
I'm typing up a table with org mode, where the equal sign(=) if the first character in the cell and it want to start a formula. how do I get it to display the symbol without it being a formula, of a way to use formulas to display it. I get errors when I use single quotes, and I see the Unicode decimal value when using double quotes.
I have tried the following
='=+'
="=+"
they give
#ERROR
[61, 43]
Use an escaped entity, \equal{} and it should display as you wish. See the variable org-entities for others you can use.
I'm a bit late :D
There may be a better way, but you can try with :='(format "=+")
Source: https://emacs.stackexchange.com/questions/19183/can-i-use-formula-to-manipulate-text-in-org-mode-table
When I ran into this problem just now, I found that I was able to get around it by replacing the equals sign with some other similar-looking character. Two which come to mind are ꞊ ‘U+A78A MODIFIER LETTER SHORT EQUALS SIGN’ and ⹀ ‘U+2E40 DOUBLE HYPHEN’.
I'm trying to do a simple mail merge in Word 2010 but when I insert an excel field that's supposed to represent a zip code from Connecticut (ie. 06880) I am having 2 problems:
the leading zero gets suppressed such as 06880 becoming 6880 instead. I know that I can at least toggle field code to make it so it works as {MERGEFIELD ZipCode # 00000} and that at least works.
but here's the real problem I can't seem to figure out:
A zip+4 field such as 06470-5530 gets treated like an arithmetic expression. 6470 - 5530 = 940 so by using above formula instead it becomes 00940 which is wrong.
Perhaps is there something in my excel spreadsheet or an option in Word that I need to set to make this properly work? Please advise, thanks.
See macropod's post in this conversation
As long as the ZIP codes are reaching Word (with or without "-" signs in the 5+4 format ZIPs, his field code should sort things out. However, if you are mixing text and numeric formats in your Excel column, there is a danger that the OLE DB provider or ODBC driver - if that is what you are using to get the data - will treat the column as numeric and return all the text values as 0.
Yes, Word sometimes treats text strings as numeric expressions as you have noticed. It will do that when you try to apply a numeric format, or when you try to do a calculation in an { = } field, when you sum table cell contents in an { = } field, or when Word decides to do a numeric comparison in (say) an { IF } field - in the latter case you can get Word to treat the expression as a string by surrounding the comparands by double-quotes.
in Excel, to force the string data type when entering data that looks like a number, a date, a fraction etc. but is not numeric (zip, phone number, etc.) simply type an apostrophe before the data.
=06470 will be interpreted as a the number 6470 but ='06470 will be the string "06470"
The simplest fix I've found is to save the Excel file as CSV. Word takes it all at face value then.
I want to give name "http://192.168.1.2/abc/xyz_values" to a table in SQLite.
I am creating the table dynamically. How can i achieve this, as SQLite is not allowing me to create a table with this name?
Any help will be appreciated.
use square brackets [http://192.168.1.2/abc/xyz_values] when creating your table
Choose a different name for your table. It is not possible.
Why does the name have to be like that in the first place? It sounds a little dodgy...
There are three methods to create identifiers with special characters: double quotes, backticks, and square brackets.
Double quotes are standard SQL, while backticks and square brackets are supported only for compatibility with MySQL and SQL Server, so it's recommended to use the former:
CREATE TABLE "http://192.168.1.2/abc/xyz_values"(...)
Double quotes and backticks that occur inside the identifier can be escaped by doubling them; this is not possible with the closing square bracket:
CREATE TABLE """"(...) -- table name is one double quote