viste

Oracle 12c Rdbms: Caratteristiche non più supportate & deprecate

Riportiamo sotto una lista di alcune caratteristiche non più supportate o deprecate a partire dalla release Oracle Rdbms 12C Comandi SRVCTL a singolo carattere L’interfaccia a linea di comando (CLI) del Server Control Utility (SRVCTL), utilizzato nelle release precedenti, a partire da Oracle Database 12c è deprecato e potrebbe non essere più supportato nelle release più recenti. Catalog view Le seguenti viste sono deprecate in Oracle Database 12c: ALL_SCHEDULER_CREDENTIALS view. DBA_NETWORK_ACL_PRIVILEGES view. DBA_NETWORK_ACLS view. DBA_SCHEDULER_CREDENTIALS view. USER_NETWORK_ACL_PRIVILEGES view. USER_SCHEDULER_CREDENTIALS view. V$OBJECT_USAGE view. Stored Outlines Sono ancora supportate per retro-compatibilità, tuttavia Oracle raccomanda l’uso di SQL plan management. SQL plan management Continua a leggere

Oracle Views in Oracle Forms: optimize data retrieval from a view avoiding the upstream filter in Oracle Forms

Oracle Views are useful tools for query multiple tables or get aggregate result; Oracle Forms can use views and display view data like a normal data table. In high cardinality data tables this artifact produce a lack in query time result, if we needs to add “ default_where “ condition to our block. We can find the cause of this lack in a underhand splitting of sql execution, which makes useless any kind of sql optimization: We can imagine the various levels of macro processing as two layers First layer: Create view example_vw as select field1, field2, filed3 from table1, Continua a leggere

Jobs Automatic For The calculation of statistics

v:* {behavior:url(#default#VML);} o:* {behavior:url(#default#VML);} w:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 14 false false false IT X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:”Tabella normale”; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:””; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:”Calibri”,”sans-serif”; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:”Times New Roman”; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:”Times New Roman”; mso-bidi-theme-font:minor-bidi;} First you have checked the size of each diagram so that you can understand how they guide the work of collecting statistics in order to make improvements on the performance of database Owner                               Objects      size MB —————————— ———— ———— USER_BIG                              386       74,516 PR2K                                    211        8,424 SAST                                     31          152 Continua a leggere