DB++ 函数

Table of Contents

• dbplus_add — Add a tuple to a relation
• dbplus_aql — Perform AQL query
• dbplus_chdir — Get/Set database virtual current directory
• dbplus_close — Close a relation
• dbplus_curr — Get current tuple from relation
• dbplus_errcode — Get error string for given errorcode or last error
• dbplus_errno — Get error code for last operation
• dbplus_find — Set a constraint on a relation
• dbplus_first — Get first tuple from relation
• dbplus_flush — Flush all changes made on a relation
• dbplus_freealllocks — Free all locks held by this client
• dbplus_freelock — Release write lock on tuple
• dbplus_freerlocks — Free all tuple locks on given relation
• dbplus_getlock — Get a write lock on a tuple
• dbplus_getunique — Get an id number unique to a relation
• dbplus_info — Get information about a relation
• dbplus_last — Get last tuple from relation
• dbplus_lockrel — Request write lock on relation
• dbplus_next — Get next tuple from relation
• dbplus_open — Open relation file
• dbplus_prev — Get previous tuple from relation
• dbplus_rchperm — Change relation permissions
• dbplus_rcreate — Creates a new DB++ relation
• dbplus_rcrtexact — Creates an exact but empty copy of a relation including indices
• dbplus_rcrtlike — Creates an empty copy of a relation with default indices
• dbplus_resolve — Resolve host information for relation
• dbplus_restorepos — Restore position
• dbplus_rkeys — Specify new primary key for a relation
• dbplus_ropen — Open relation file local
• dbplus_rquery — Perform local (raw) AQL query
• dbplus_rrename — Rename a relation
• dbplus_rsecindex — Create a new secondary index for a relation
• dbplus_runlink — Remove relation from filesystem
• dbplus_rzap — Remove all tuples from relation
• dbplus_savepos — Save position
• dbplus_setindex — Set index
• dbplus_setindexbynumber — Set index by number
• dbplus_sql — Perform SQL query
• dbplus_tcl — Execute TCL code on server side
• dbplus_tremove — Remove tuple and return new current tuple
• dbplus_undo — Undo
• dbplus_undoprepare — Prepare undo
• dbplus_unlockrel — Give up write lock on relation
• dbplus_unselect — Remove a constraint from relation
• dbplus_update — Update specified tuple in relation
• dbplus_xlockrel — Request exclusive lock on relation
• dbplus_xunlockrel — Free exclusive lock on relation