S.import()

S

A string. Format: separate the records by line break, and the fields by user-defined separator; the default separator is tab

F_i

Fields to be retrieved; by default, all fields will be retrieved

type

Field types include bool, int, long, float, decimal, number, string, date, time and datetime; data type of the first row will be used by default; it is a serial byte key. when the value is an integer; only 16 bytes are allowed in a serial byte value

fmt

Date\time format

s

User-defined separator; the default is tab

@t

Take the first row in f as the field name. If not using this option, then use _1, and _2,… as the field name

@c

Use comma as the separator when parameter s is absent

@s

Won’t split strings and data will be imported as a table sequence consisting of strings of single field values; and ignore parameters

@i

Return the result set as a sequence if it only contains one field

@q

Remove the quotation marks, if any, from both ends of data items, including the field names, and handle escape sequences; but will keep quotation marks within the data item

@a

Treat single quotes as what they are; left not handled by default, and can work with @q@p

@o

 Perform escaping according to the Excel rule, which identifies two double quotation marks as one and does not escape the other characters

@p

Enable handling the matching of parentheses (not including the separators within the parentheses) and quotes, as well as the escape sequences outside of the quotes

@f

Split the file content into a string by the separator without parsing

@l

Allow line continuation and put an escape character \ at the end the line

@k

Retain white spaces on both sides of the data item; without it, white spaces on both ends will be automatically deleted

@e

Generate null if parameter Fi isn’t included in the imported strings; by default, there will be an error report

@d

Delete a record if it contains unmatching data types or data formats and start examining data by type, or if the parentheses and the quotation marks in it do not match when @p option and @q option respectively are present

@n

Ignore a row whose number of columns don’t match the first row

@v

In corporation with @d or @n, if a mismatch appears, throw an exception, terminate the execution and output the content of the problem record

@w

Read each row, including the column headers row, as a sequence and return a sequence of sequences

@r

Read contents as a string before parsing so that errors about some character sets can be avoided; the option slows the computation

A

1

=demo.query("select * from EMPLOYEE")

2

=A1.(~.array().concat@c())

Convert to the sequence of strings.

3

=A2(1).import(;",")

Select all fields from a specified string in the sequence. Specify comma as the separator, and return a table sequence as the result.

4

=demo.query("select EID,NAME,SURNAME from EMPLOYEE")

5

=A4.export()

6

=A4.export@t(EID:id,NAME:name,SURNAME:surname;"|")

7

=A5.import()

No parameters are given. The default separator will be tab, and _1 and _2,… will be used as field names.

8

=A6.import@t(id:int,name;"|")

Select fields id and name, separated by “|” .

9

=A6.import@f()

With @f option, just split the file as a string using the separator.

10

1,2,"3,3",(4,4),[5,5],'6,6'

11

=A10.import@c()

With @c option, the default separator is the comma.

12

=A10.import@cp()

With @p option, parentheses and quotation marks matching will be handled during parsing.

13

=A10.import@cpa()

With @a option, single quotation marks are treated as quotation marks.

14

=A2(1).import@c()

With @c option, use comma as the default separator.

15

=A5.import@s()

With @s option, won’t split strings and records are imported as a single-field table sequence.

16

=A5.import@si()

A single-field result set will be returned as a sequence.

17

"uy'd'uj"

18

=A17.import()

19

=A17.import@q()

With @q option, double quotations will be removed before generating the final table sequence With @q option, first remove quotation marks at both ends of each data item (not handling those within) and then convert data into a table sequence.

20

f1,f2,f3

2,"dd""ff",3

21

=A20.import@coq()

With @o option, two double quotation marks in one string are treated as one.

22

=" abc ".import@k()

Retain the whitespaces on boths sides.

23

=A6.import@te(id:int,name,dept;"|")

Generate null since dept doesn’t exist in the imported strings.

24

id|name|surname

a|Rebecca|Moore

2|Ashley|Wilson

3|Rachel|Johnson

4|Emily|Smith

5|Ashley|Smith

6|Matthew|Johnson

7|Alexis|Smith

8|Megan|Wilson

25

=A24.import@td(id:int,name;"|")

Delete the record as it contains unmatching data types.

26

=A24.import@tvd(id:int,name;"|")

Check data type matching, and, if error reports, throw an exception, terminate the execution and output the content of the problem record; the error message is: Error in cell A26.

27

id|name|surname

1|Rebecca|Moore

2|Ashley

3|Rachel|Johnson

4|Emily

28

=A27.import@tdn(id:int,name,surname;"|")

Ignore row 2 and row 3 because the number of columns don’t match that of the table sequence.

29

=A24.import@w(;"|")

Use @w option to read each row as sequecne of sequences.

30

11,22,"3",\

33,44,55,

66,77,88

31

=A30.import@l()

With @1 option, allow line continuation when there is an escape character at the end of the line.