channel( ch )

Read(282) Label: return a cluster channel,

Description:

Create a cluster channel and push data in another cluster channel into it.

Syntax:

channel(ch)

Note:

The function creates a cluster channel as synchronously segmented as cluster channel ch, and pushes data in ch into it.

Parameters:

ch

A cluster channel

Return value:

A cluster channel

Example:

 

A

 

1

=file("emp1.ctx":[1],"192.168.0.119:8281")

 

2

=A1.open()

Open a cluster table

3

=A2.attach(table1)

Retrieve cluster entity table table1

4

=A3.cursor()

Return a cluster cursor

5

=channel(A4)

Create a channel, be ready to push data in A4’s cluster cursor into the new channel, and return a cluster channel

6

=channel(A5)

Create a channel, be ready to push data in A5’s cluster channel into the new channel, and return a cluster channel

7

=A5.fetch()

Keep data of the cluster channel

8

=A6.fetch()

Keep data of the cluster channel

9

=A4.fetch()

 

10

=A5.result()

Get data from the cluster channel

11

=A6.result()

Get data from the cluster channel