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Functions
- #c
- $(db)sql;…
- ${macroExp}
- =expression
- >statement
- [a:b]
- @
- @x:…
- A()
- A.( x )
- [a 1 ,…a n ]
- abs()
- acos()
- acosh()
- age()
- align()
- ali_open()
- ali_close()
- ali_query()
- alter()
- T.alter( F i ,…; F’ i ,… )
- and()
- append()
- argpost
- array()
- asc ()
- asin()
- asinh()
- atan()
- atanh()
- attach()
- avg()
- base64 ()
- between ()
- bits()
- blob()
- bool ()
- break {a}
- C
- Cr()
- calc()
- call()
- call path/spl( … )
- calls path/spl( … )
- callx()
- cand()
- canvas()
- case()
- ceil()
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- cmp()
- cor()
- combin()
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- conj()
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- cos()
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- count()
- cov()
- covm()
- create()
- cs.()
- cum ()
- cursor()
- date()
- datetime()
- day()
- days()
- decimal()
- delete()
- deq()
- derive()
- det()
- diff()
- digits()
- directory()
- dis()
- dism()
- dup()
- dynadb._close()
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- dynadb._query()
- dynadb.table()
- E()
- E()
- elapse()
- elasticnet()
- end s
- enum()
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- eq()
- error()
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- es_close ()
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- execute()
- exists()
- exp()
- export()
- eye()
- f@o(…)
- Faccrint()
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- fact()
- false
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- fetch()
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- file()
- filename()
- find()
- Fintrate()
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- float()
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- Fmirr()
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- for
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- func()
- Fv()
- Fvdb()
- Fyield()
- get()
- gcd()
- goto C
- group()
- groupi()
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- hbase_close()
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- hive_cursor()
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- hive_query()
- hosts()
- hour ()
- httpfile()
- I()
- icursor()
- icount()
- id()
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- ifa()
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- import()
- index()
- inf()
- influx_close()
- influx_insert()
- influx_open()
- influx_query()
- influx2_close()
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- influx2_open()
- influx2_query()
- influx2_rest()
- insert()
- int()
- interval()
- inv()
- inverse()
- invoke()
- isalpha()
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- isect()
- iselect()
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- isupper()
- iterate()
- join()
- joinx()
- json()
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- k()
- k.sbs()
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- key()
- keys()
- lasso()
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- left()
- len()
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- ln ()
- lock()
- long()
- lower()
- m()
- mae()
- max()
- maxp()
- mcumsum()
- mcursor()
- md5()
- median()
- memory()
- merge()
- Mergex()
- mfind()
- mid()
- millisecond()
- min()
- minp()
- minute()
- mmean()
- mnorm()
- mode()
- modify()
- mongo_close ()
- mongo_open()
- mongo_shell()
- month()
- movefile()
- mul()
- mse()
- mstd()
- msum()
- n.f( x )
- name()
- new()
- news()
- next{a}
- nodes()
- norm()
- norminv()
- not()
- now()
- ntile ()
- null
- number()
- nvl()
- olap_close()
- olap_open()
- olap_query()
- ones()
- open()
- or()
- output()
- p()
- pad()
- parse()
- paste()
- pca()
- pdate ()
- pearson()
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- periods()
- permut()
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- pi()
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- pls()
- pmax()
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- polyfit()
- pos()
- power()
- prior()
- proc()
- product()
- property()
- pseg()
- pselect()
- pseudo()
- psort()
- ptop()
- push()
- query()
- r.( x )
- r.F
- r.F=x
- r2dbc_close()
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- r2dbc_query()
- rand()
- rands()
- range()
- rank()
- ranki()
- rankm()
- ranks()
- read()
- record()
- redis_close()
- redis_command()
- redis_open()
- regex()
- register()
- remainder()
- rename()
- replace()
- report_config()
- report_exportDoc()
- report_exportHtml()
- report_exportPdf()
- report_exportXls()
- report_open()
- report_run()
- reset()
- result
- return xi
- rgb()
- ridge()
- right()
- rollback()
- round()
- run()
- rvs()
- s.sbs()
- sap_open()
- sap_close()
- sap_cursor ()
- sap_execute ()
- sap_getparam ()
- sap_table ()
- savepoint()
- second()
- segp()
- select()
- seq()
- sf_close()
- sf_open()
- sf_query()
- sf_wsdlclose()
- sf_wsdlopen()
- sf_wsdlquery()
- sf_wsdlview()
- sg()
- shift()
- sign()
- sin()
- sinh()
- size()
- sizeof()
- skip()
- sleep()
- sort()
- sortx()
- spark_open()
- spark_close()
- spark_cursor()
- spark_query()
- spark_read()
- spearman()
- split()
- sqlparse ()
- sqltranslate()
- substr ()
- stax_close ()
- stax_open()
- stax_cursor()
- stax_query ()
- sqrt()
- step()
- string()
- sum()
- swap()
- switch()
- syncfile( hs,p )
- system()
- T()
- tan ()
- tanh()
- time()
- tinv()
- to()
- top()
- total()
- transpose()
- trim()
- true
- try
- union()
- update()
- upper()
- urlencode ()
- v()
- var()
- web_crawl()
- webhdfs()
- webhdfs_file()
- words()
- workday()
- workdays()
- write()
- ws_call()
- ws_client()
- xjoin()
- xjoinx()
- xlscell()
- xlsclose()
- xlsexport()
- xlsimport()
- xlsopen()
- xlswrite()
- xml()
- xor()
- year()
- ym_build_model()
- ym_close()
- ym_env()
- ym_exec()
- ym_importance()
- ym_json()
- ym_load_pcf()
- ym_model()
- ym_performance()
- ym_predict()
- ym_present()
- ym_result()
- ym_save_pcf()
- ym_setparam()
- ym_server_quit()
- ym_statistics()
- ym_target()
- z()
- zeros()
- zip()
- zip_add()
- zip_close ()
- zip_compress()
- zip_del()
- zip_encrypt()
- zip_extract()
- zip_open()
- Intersection of sequences
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- The writing rules for expression x in loop functions
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- Identifier
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- Assignment
- Value Computation and Assignment
- Escape Character
- Logical Operations
- Long Integer
- Cell type
- Code block type
- Chart Elements
T.select()
Description:
Select records from a pseudo table according to a specified condition.
Syntax:
|
T.select(x) |
|
Note:
The function calculates expression x on each record of pseudo table T and returns T containing records that make x true. It returns the orginal pseudo table retaining all its records when parameter x is absent.
Parameters:
|
T |
A pseudo table |
|
x |
A Boolean expression that is a filter condition, which can be null |
Return value:
A pseudo table object
Example:
|
|
A |
|
|
1 |
=create(file).record(["D:/file/pseudo/app.ctx"]) |
|
|
2 |
=pseudo(A1)
|
Generate a pseudo table object |
|
3 |
=A2.select(eid>7) |
Get records that satisfy eid>7 from A2’s pseudo table and return it
|
|
4 |
=A2.select() |
Return A2’s pseudo table having all its original records |
