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| l |
Per handle
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$h->trace($level);
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$h->trace($level,
$filename);
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n |
Only effects
that handle and any new child handles created from it
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n |
Child handles
get trace level of parent in effect at time of creation
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| l |
Global (internal
to application)
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DBI->trace(...);
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n |
Sets effective
global default minimum trace level
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| l |
Global (external
to application)
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n |
Enabled using DBI_TRACE
environment variable
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DBI_TRACE=digits
DBI->trace(digits);
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DBI_TRACE=filename
DBI->trace(2, filename);
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DBI_TRACE=digits=filename DBI->trace(digits, filename);
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