• Product: Aleph
• Product Version: 20, 21, 22, 23
• Relevant for Installation Type: Dedicated-Direct, Direct, Local, Total Care

Question    
How long is a set_number in X-serve find active/valid? 

For instance: http://<server>/X?op=find&base=XXX&request=wbk=arb%20AND%20wbk=de* 

which results in: 
<?xml version="1.0" encoding="UTF-8" ?> 
- <find> 
<set_number>261126</set_number> 
<no_records>000001725</no_records> 
<no_entries>000001725</no_entries> 
<session-id>VUCFU5CA64DCQN6SE988LDHT7ARKMQID2RY3936YASRF2T3RBT</session-id> 
</find>

Answer    
The result sets for searches performed by X-Service or other Aleph functions (as GUI search or OPAC) are stored in tables z05 (set) and z110 (result-set table) in VIR01. 

The result sets are valid as long these tables are not dropped. 
The tables are dropped by clear_vir01, which we recommend to execute at least on a weekly basis. 

So it depends on the frequency of your clear_vir01 how long a set number is active.

• Article last edited: 26-Jun-2016