# 22. Virtuoso Functions Guide - log_text

Chapter Contents | Prev | Next
Keyword Search:
www.openlinksw.com
docs.openlinksw.com
Book Home
Contents
Preface
Virtuoso Functions Guide
Administration
db.dba.vacuum
user_change_password
user_create
user_drop
user_get_option
user_grant_role
user_revoke_role
user_role_create
user_role_drop
user_set_option
user_set_qualifier
cfg_item_count
cfg_item_name
cfg_item_value
cfg_section_count
cfg_section_name
cfg_write
checkpoint_interval
disconnect_user
fk_check_input_value...
log_enable
log_text
prof_enable
prof_sample
status
sys_lockdown
sys_stat
system
trace_status
user_set_password
virtuoso_ini_path
Aggregate Functions
Array Manipulation
BPEL APIs
Backup
Compression
Cursor
Date & Time Manipulation
Debug
Dictionary Manipulation
Encoding & Decoding
File Manipulation
Free Text
Hashing / Cryptographic
LDAP
Locale
Mail
Miscellaneous
Number
Remote SQL Data Source
Replication
SOAP
SQL
String
Transaction
Type Mapping
UDDI
User Defined Types & The CLR
Virtuoso Java PL API
Virtuoso Server Extension Interface (VSEI)
Web Server & Internet
XML
XPATH & XQUERY
Functions Index

## log_text

inserts statements into the roll forward log
log_text (in text varchar, [in arg_1 any], [...]);
Description

The log_text function can be used to insert a SQL statement into the roll forward log.

The log_text function causes the SQL text given as first argument to be executed at roll forward time with the following arguments as parameters, bound from left to right to the parameter markers in the statement ('?'). There can be a maximum of 8 parameters but these can be arrays.

Parameters
text – VARCHARSQL statement to be added in the transaction log.
arg1..arg8 – Parameters to be passed to logged statement.
Examples
Log a procedure call

Log a procedure call instead of its effects.

    create procedure xx ()
    {
      log_text ('xx (?)', arg);
      log_enable (0);
      ... action code
      log_enable (1);
    }

See Also

log_enable