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Friday, November 9, 2012

logical volume manager (LVM)

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LVM is a logical volume manager for the Linux kernel; it manages disk drives and similar mass-storage devices LVM is suitable for: Mana...
Thursday, November 8, 2012

JDO

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JDO is - a persistence technology -allows you to create POJOs (plain old java objects) and persist them to the database If you are an applic...
Wednesday, November 7, 2012

JPA vs Hibernate

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Many enterprise Java developers use lightweight persistent objects provided by open-source frameworks or Data Access Objects instead of ent...

Statement vs Prepared Statement

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Statement vs Prepared Statement  A prepared statement performs the following checks:     Makes sure that the tables and columns exi...

ls command howto

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Output from ls -la Command picard@spnode15$ ls -la total 1600 drwx ---s-x  11 picard   STAFF       1536 Jun 26 14:49  . dr -xr-sr-...
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