T.import()

Read(262) Label: pseudo table, table sequence,

Description:

Get a table sequence based on a pseudo table.

Syntax:

T.import(xi:Ci,…)

Note:

The function gets a table sequence based on pseudo table T by specifying field expressions xi and field names Ci, which, by default, field names in the pseudo table. It gets a table sequence using all fields of the pseudo table when parameters xi:Ci are absent.

Parameter:

T

A pseudo table

xi

A field expression

Ci

Field name in the result table sequence

Return value:

A table sequence

Example:

 

A

 

1

=create(file).record(["D:/file/pseudo/empT.ctx"])

 

2

=pseudo(A1)

Generate a pseudo table object.

3

=A2.import()

Get a table sequence from A2’s pseudo table using all its fields since no parameters are present.

4

=A2.import(EID:eid,NAME,SALARY:salary)

Retrieve fields EID, NAME and SALARY from the pseudo table to form a table sequence, and rename fields eid, NAME and salary respectively.