南水北调中线一期工程总干渠渠道膨胀土处理施工技术要求

南水北调中线一期工程总干渠渠道膨胀土处理施工技术要求内容摘要：

y wor king t ol syst em overview dat abaset ier syst em s, m anagement syst ems, br anch level m anagement syst em, t he provincial wor k centr e split and t r ansf er syst em, f ourlevel syst em. Each syst em has it s own separ at e dat a server is used t o st ore t heir colection of pr emium business dat a, pr ovide t he basis f or st atist ical analysi . 1, st and level ser ver st or age f ees colected f r om t ol anes f lowing dat a and pass on t his sit e blessing Kaku, car tr idge inf ormation wit hin t his sit e, car d box allocation, cart ridge binat ion of inf ormation and f r equency inf orm ation. 2, t he main st or age ser ver ser ver charges colect ed wat er fr om under t he j urisdiction of t he st at ion dat a and t he pass of blessing Kaku, t he int ernal cart idge inf ormation, reallocat ion of t he car tr idge and car tr idge bination, per sonnel inf ormation, flight infor mat ion, char ges t he act ual payment dat a entr y work. 3, Center class erver storage server char ges colect ed water f r om under t he j urisdict ion of t he st at ion dat a Wat er dat a int egr it y can be up and r uning. So when a dat abase server f ails, you do not need t o pass dat a t o recover, sim ply t hrough t he colection procedure for charging water data colect ion to plet e the fast r ecover y of ser ver f ailur es. analysis summ ar y summary analysis, lane because it is not a plete stat ion level data, so t here is no need f or dedicated backup. St andlevel ser ver dat a because it is at t he f ront of the charge as a whole, it s fault directly aff ect s t he exer cise normally, you need a plet e of fsite backup solut ion. Managem ent, and data cent er ser ver, due t o it s operations wit hout manual dat a entr y, so j ust use mon ar tif icial scheduled backups can be. 5 solut ions in or der t o ensur e that when t he ser ver af ter a hardware f ailover, backup data wit hout changes or only m inor changes can be quick and easy t roubleshot ing of ser ver dat a r ecover y, you need t o select he r eal t ime synchr onization met hod of t he pr ogr amme. Typically backup system es wit h backup solut ions hould be pr ef er red. I f t he syst em es wit h a backup lan if it cannot m eet he r equir ement s, sof t war e developm ent methods is needed. Or t hir dpar ty sof t war e syst ems are select ed f or backup. Because t hir d par ty backup sof t war e is usualy pr iced ver y high, char ging unit s r equir e high pr ice, so f or only t he f ir st wo m et hods ar e st udied below. use M S QL2020 synchronized backups of SQL 2020 dat abase in t hree ways, nam ely snapshot r eplication, t r ansactional r eplication and m erge r eplicat ion. By parison, excluding t he f ir st wo pr ogr amm es, select synchr onizat ion tr ansactional r eplicat ion and database Not hwind database, f or example, f or t esting. The t hr ee part s of t he main considerations in t he synchr onization of t he dat a, can be t hought of as t hr e hosts. The Publisher, Dist ribut or , and Subscriber。 can be under st od f r om t he lit eral m eaning, f unct ion is act ualy im plement ed t o keep subscriber s t hr ough t he Dist ribut or dat a t im ely and consi t ent dat a at t he Publisher. 1, about snapshot r eplication t o c opy dat a changes inf r equently, or ar e not r equir ed t o keep t he data cur ent values ( low lat ency) , snapshot dat a is one of t he best m et hods of dat a r eplicat ion. When synchr onization ocurs, plet e snapshot is gener at ed and sent o t he Subscriber . Because snapshot r eplicat ion bulk copies r eleased ( it ems colection) a plete copy, it wil publish all wr it es made t o t he snapshot f older. Pr oj ect is t o specif y t hat you want o copy tables, dat a par ti ioning, or database obj ects. Pr oj ects can be a ful t able and cert ain columns ( using a vert ical f ilt er) , cert ain r ows ( using a horizont al f ilt er ), a st ored pr ocedur e or view def init ion, t he stored procedure execut ion, view, indexed, view, or user def ined f unction. Snapshot replication does not maint ain data t he f astest r eal tim e updates, and t he bulk copy released (it ems colection) af ul copy of t he mechanism wil generat e a lot of wor k t r af fic. Only small volumes of r eplication used, data is stat ic and does not need t o be updat ed in r eal t ime dat abase. So do not use snapshot replication t he synchr onization mode Dat a t able, add a new dat a f ield M Sr epl_tr an_ver sion, publishing soft war e depending on whet her t he cont ents of t his f ield changes t o det erm ine whet her you need t o publish t he data. And SQL 2020 data is m odifed j udging is managed by t he kernel, not f or exter nal pr ogr amming. Such as modif y t he str uct ur e of t he original dat a t able, adir ect r esult of r unni g lanes and m anagement sof t war e t hat doesn39。 t wor k. Due t o t he above t est r esult s t o pr ove t hat t his cenario is not suit able as a backup m et hod f or working t ol system in Shaanxi Pr ovince. 5. 2 using specially developed backup s of t war e af ter t he above t ests, t hrough t he syst em39。 s subscr iptions, publish m et hod in Shanxi pr ovince under t he wor king sof t war e sync backup, demand cannot be m et , backup soft war e so I decided t o use f or t he developm ent of synchronization, synchr onize backups. As a r esult of independent development, i has a high degree of f lexibilt y in backup. Easier f or seamless int egr ation wit h existing syst ems. Backup soft ware developed f or t he synchr onization, you m ust meet t he f ol wing r equir em ent s: in or der t o ensure synchr onous backup soft ware can start on Windows t art up, and ar e not easily shut down by t he oper at ion, it should be developed using a Windows ervice. Synchr onize backup sof t war e is t he soft war e t hat r uns 24 hours, must be able t o st。