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- =expression
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- [a:b]
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- ~( i )
- A()
- A.( x,... )
- [a1,...an]
- abs()
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- E()
- E()
- elapse()
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- end s
- enum()
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- es_close()
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- es_head()
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- goto C
- group()
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- groups()
- groupx()
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- mongo_open()
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- month()
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- mul()
- mse()
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- n.f(x)
- name()
- new()
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- next{a}
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- norm()
- norminv()
- not()
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- numnorm()
- nvl()
- o()
- olap_close()
- olap_open()
- olap_query()
- ones()
- open()
- or()
- oss_bucket()
- oss_close()
- oss_copy()
- oss_file()
- oss_list()
- oss_open()
- output()
- p()
- pad()
- parse()
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- pca()
- pchipmthd()
- pdate()
- pearson()
- penum()
- periods()
- permut()
- pfind()
- pi()
- pivot()
- pjoin()
- pls()
- pmax()
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- polyfit()
- pos()
- power()
- prior()
- proc()
- product()
- proportion()
- property()
- pseg()
- pselect()
- pseudo()
- psort()
- ptop()
- push()
- Qconnect()
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- Qfile()
- Qload()
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- query()
- r.(x,...)
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- r2dbc_query()
- rand()
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- rank()
- ranki()
- rankm()
- ranks()
- read()
- record()
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- regex()
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- remainder()
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- result
- return xi
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- s3_bucket()
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- s3_file()
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- s3_open()
- sap_client()
- sap_close()
- sap_cursor()
- sap_execute()
- sap_getparam()
- sap_table()
- savepoint()
- sbs()
- se()
- second()
- segp()
- select()
- seq()
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- sf_query()
- sf_wsdlclose()
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- shift()
- sign()
- sin()
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- size()
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- smooth()
- sort()
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- spark_open()
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- spark_cursor()
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- spark_read()
- spearman()
- splinemthd()
- split()
- splserver()
- sqlparse()
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- substr()
- stax_close()
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- stax_cursor()
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- sqrt()
- step()
- string()
- structure
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- svm()
- swap()
- switch()
- syncfile(hs,p)
- system()
- T()
- tarcorskew()
- tan()
- tanh()
- time()
- tinv()
- to()
- top()
- total()
- transpose()
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- true
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- typeof(x)
- union()
- update()
- upper()
- urlencode()
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- v()
- var()
- var(V)
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- was_bucket()
- was_close()
- was_copy()
- was_file()
- was_list()
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- web_crawl()
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- words()
- workday()
- workdays()
- write()
- ws_call()
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- xjoin()
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- xlscell()
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- xlsexport()
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- xml()
- xor()
- xunion()
- year()
- ym2_close()
- ym2_env()
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- ym2_model()
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- zeros()
- zip()
- zip_add()
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- zip_compress()
- zip_del()
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- Intersection of sequences
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ifind()
Description:
Search for a specified key value in an in-memory table according to the index.
Syntax:
T.ifind(k,...;I)
Note:
The function searches for key value k in in-memory table T according to index I and return a sequence of matching records, or null if no matching records are found.
Parameter:
|
T |
An in-memory table |
|
I |
Index name |
|
k |
Key value |
Option:
|
@p |
Return a sequence of sequence numbers of matching records |
|
@1 |
Return the first matching record |
Return value:
Sequence/null
Example:
|
|
A |
|
|
1 |
=demo.cursor("select EID,NAME,GENDER,SALARY from employee").memory() |
Return an in-memory table. |
|
2 |
=A1.index(test_ifind,SALARY>=11000;GENDER) |
Create test_ifind index on GENDER field. |
|
3 |
=A1.ifind("M";test_ifind) |
Use test_ifind index to search for and return records of the in-memory table whose key value is M according to test_ifind index. |
|
4 |
=A1.ifind@p("M";test_ifind) |
Return a sequence of sequence numbers of records. |
|
5 |
=A1.ifind@1("M";test_ifind) |
Return the first-found record. |
