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DB++
DB++
简介
安装/配置
需求
安装
运行时配置
资源类型
预定义常量
db++ error codes
DB++ 函数
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