Actually I doubled checked this āsā String Interpolator
In Scala
scala> val chars = "This is Scala"
chars: String = This is Scala
scala> println($"$chars")
This is Scala
OK so far fine. In shell (ksh) can do
chars="This is Scala"
print "$chars"
This is Scala
In Shell
print "$charsand it is interesting"
it is interesting
Have a problem with interpretation!
This will work by using {} brackers
print "${chars} and it is interesting"
This is Scala and it is interesting
In Scala
println($"$charsand it is interesting")
<console>:24: error: not found: value charsand
println($"$charsand it is interesting")
Likewise shell this will work by deploying the brackets {}
println($"${chars} and it is interesting")
This is Scala and it is interesting
So I presume it is best practice to use ${} in Scala like shell? Although
in most cases $VALUE should work.
Cheers
Dr Mich Talebzadeh
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On 28 August 2016 at 09:25, Mich Talebzadeh <mich.talebza...@gmail.com>
wrote:
> Yes I realised that. Actually I thought it was s not $. it has been around
> in shell for years say for actual values --> ${LOG_FILE}, for position 's/
> etc
>
>
> cat ${LOG_FILE} | egrep -v 'rows affected|return status|&&&' | sed -e
> 's/^[ ]*//g' -e 's/^ //g' -e '/^$/d' > temp.out
>
>
> Dr Mich Talebzadeh
>
>
>
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> *Disclaimer:* Use it at your own risk. Any and all responsibility for any
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> from relying on this email's technical content is explicitly disclaimed.
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>
> On 28 August 2016 at 08:47, Jacek Laskowski <ja...@japila.pl> wrote:
>
>> Hi Mich,
>>
>> This is Scala's string interpolation which allow for replacing $-prefixed
>> expressions with their values.
>>
>> It's what cool kids use in Scala to do templating and concatenation š
>>
>> Jacek
>>
>> On 23 Aug 2016 9:21 a.m., "Mich Talebzadeh" <mich.talebza...@gmail.com>
>> wrote:
>>
>>> What is --> s below before the text of sql?
>>>
>>> *var* sales_order_sql_stmt =* s*"""SELECT ORDER_NUMBER ,
>>> INVENTORY_ITEM_ID, ORGANIZATION_ID,
>>>
>>> from_unixtime(unix_timestamp(SCHEDULE_SHIP_DATE,'yyyy-MM-dd'),
>>> 'yyyy-MM-dd') AS schedule_date
>>>
>>> FROM sales_order_demand
>>>
>>> WHERE unix_timestamp(SCHEDULE_SHIP_DATE,'yyyy-MM-dd') >= $
>>> planning_start_date limit 10"""
>>>
>>> Dr Mich Talebzadeh
>>>
>>>
>>>
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>>> *Disclaimer:* Use it at your own risk. Any and all responsibility for
>>> any loss, damage or destruction of data or any other property which may
>>> arise from relying on this email's technical content is explicitly
>>> disclaimed. The author will in no case be liable for any monetary damages
>>> arising from such loss, damage or destruction.
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>>>
>>> On 23 August 2016 at 07:31, Deepak Sharma <deepakmc...@gmail.com> wrote:
>>>
>>>>
>>>> On Tue, Aug 23, 2016 at 10:32 AM, Deepak Sharma <deepakmc...@gmail.com>
>>>> wrote:
>>>>
>>>>> *val* *df** = **sales_demand**.**join**(**product_master**,*
>>>>> *sales_demand**.$"INVENTORY_ITEM_ID" =**== **product_master*
>>>>> *.$"INVENTORY_ITEM_ID",**"inner"**)*
>>>>
>>>>
>>>> Ignore the last statement.
>>>> It should look something like this:
>>>> *val* *df** = **sales_demand**.**join**(**product_master**,$"*
>>>> *sales_demand**.INVENTORY_ITEM_ID" =**== $"**product_master*
>>>> *.INVENTORY_ITEM_ID",**"inner"**)*
>>>>
>>>>
>>>> --
>>>> Thanks
>>>> Deepak
>>>> www.bigdatabig.com
>>>> www.keosha.net
>>>>
>>>
>>>
>
