memo

The memo table stores the case memo data before upgrading to iProcess Engine 11.6. Since iProcess Engine 11.6, all the new case memo data is stored in the BLOB(2G) data type in the nmemo table.

11.6

Structure

The memo table has the following structure:

TABLE memo (
node_id		INTEGER 		        NOT NULL,
proc_id		INTEGER  		        NOT NULL,
casenum		NUMERIC(20)		NOT NULL,
memo_id		INTEGER			NOT NULL,
memo_index	INTEGER			NOT NULL,
memo_size	INTEGER			NOT NULL,
memo_data	BLOB(30K)     NOT NULL NOT LOGGED,
array_idx	INTEGER			NOT NULL)

Column	Description
node_id	ID of the node that this memo is hosted on, as defined in the nodes table.
proc_id	ID of the procedure that this memo belongs to, as defined in the proc_index table.
casenum	Case number that this memo belongs to, as defined in the case_information table.
memo_id	Unique (for this case) ID of this memo.
memo_index	Index number into the set of rows that make up this memo. If a memo is longer than 30,000 bytes multiple rows (in 30,000 byte chunks) are used to store the memo data. Each segment of the memo data is uniquely identified by its memo_index value.
memo_size	Size (in bytes) of the memo data for this row.
memo_data	Memo data.
array_idx	Either: • The array element index number of the memo. • -1, if the memo is not an array memo field.

Primary Key

The following primary key is defined for this table.

Key Name	Column(s)
pk_memo	casenum memo_id memo_index proc_id node_id array_idx

Foreign Keys

The following foreign key is defined for this table.

Key Name	Column(s)	Referenced in Table...
fk_memo1 This key enforces the DELETE CASCADE referential action.	node_id proc_id casenum	case_information

Indexes

The following index is defined for this table.

Index Name	Column(s) Indexed
idx_memo_fk	casenum proc_id node_id

Table Activity

The memo table contains one or more rows for each memo on the system. Rows are added, updated and deleted in the following situations.

A row is...	When...
added	either: • a memo field is first assigned. • a memo field is modified. (All rows for the memo are deleted and then re-added.)
updated	never.
deleted	either: • a memo field is modified. (All rows for the memo are deleted and then re-added.) • a case is purged.