Optimizing SQL Insert Performance - GSE Belux
Optimizing SQL Insert Performance - GSE Belux
Optimizing SQL Insert Performance - GSE Belux
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Space search steps (Classic Segmented/UTS in V9)<br />
Search the space map page that contains lowest segment has<br />
free space to the end of space map page<br />
2<br />
Search<br />
adjacent<br />
pages<br />
within the<br />
segment<br />
2<br />
3<br />
End<br />
4<br />
Search the<br />
end<br />
Without<br />
physical<br />
extend<br />
Search the<br />
end with<br />
Extend<br />
1<br />
5<br />
Search from lowest segment<br />
that has free space<br />
5<br />
Extend<br />
failed<br />
6<br />
Exhaustive search from the beginning of table space<br />
© 2010 IBM Corporation
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