updating primary key value in oracle

... based on the original primary key and update the primary key value with the current value of the primary key in addition to updating the other row values with their current values. In the sample, ... a primary key value in a DataTable and updated the change back to the underlying data source, but the value in the data source remained unchanged. You need to update a primary key value in ... SqlDbType.Int, 0, "Id"); The original value for the Id field is set by the following two lines of code in the sample: updateCommand.Parameters.Add("@IdOriginal", SqlDbType.Int,...

Ngày tải lên: 26/01/2014, 10:20

... indicates whether a change to a value in the primary key column of the primary key table (the parent table) is also made to the foreign key column of the corresponding rows of the foreign key ... parent table. Updating the Primary Key of a Parent Table and Pushing the Change to the Database In this section you'll learn what happens if you attempt to update the primary key in a parent ... simply delete the rows in the child table first, change the primary key value in the parent table, and recreate the rows in the child table with the new primary key value. • customersDT.Columns["CustomerID"],...

Ngày tải lên: 24/12/2013, 01:17

... for increasing profitability, improving operations and raising customer satisfaction, DSX will: Decrease annual maintenance costs Adopting ADC's DSX solution provides the greatest savings ... competitive advantage by decreasing service outages and helping you maintain your customer base. Improve time to ROI Extraordinary savings allow companies to recover their investment faster than with ... the total costs of owning equipment, the following must be evaluated: initial capital investment, operation and maintenance costs, and customer revenue lost during maintenance activities. This...

Ngày tải lên: 10/12/2013, 20:15

... menu. 2.3 Define a Primary Key and Other Indexes Indexes are used to improve performance when querying data, such as searching on fields and sorting information. The primary key is an index that ... be the primary key falls into the constraint category of indexes. Figure 2.5. You need to have one primary key field per table. While you're in the table designer, you can get to Indexes, ... choosing Indexes/Keys from the View menu. You can see the Property Pages dialog box in Figure 2.4. Figure 2.4. You can create all the necessary indexes using this dialog box. Within Indexes,...

Ngày tải lên: 14/12/2013, 20:16

... Getting a Sequence Value from Oracle Problem When you add a row into an Oracle table that uses a sequence to generate the value for a primary key column, the value assigned to the column in ... demonstrates using the NEXTVAL and CURRVAL keywords to generate the new sequence value when inserting a row using a stored procedure and subsequently setting the stored procedure's return value. ... shown in Example 4-7 . Example 4-7. File: OracleSequenceValuesForm.cs // Namespaces, variables, and constants using System; using System.Configuration; using System.Windows.Forms; using System.Data;...

Ngày tải lên: 21/01/2014, 11:20

... using the NewGuid( ) method of the Guid structure when the tables are defined. This causes a new GUID value to be assigned to the primary key when the first row is added. Because the DefaultValue ... a different GUID primary key value. This is done by handling the RowChanging event for each table. When a row has been added, that is, the Action property of the DataRowChangingEventArgs argument ... col.DefaultValue = Guid.NewGuid( ); parentTable.PrimaryKey = new DataColumn[] {col}; cols.Add(FIELD1_FIELD, typeof(String)).MaxLength = 50; cols.Add(FIELD2_FIELD, typeof(String)).MaxLength...

Ngày tải lên: 21/01/2014, 11:20

... difficulty in understanding these concepts, which may have resulted in inconsistent responses. We found inconsistencies in 12.2% of the sample, indicating the difficulties in com- municating the information ... would consider using and would stop or continue using. In addition, hypothetical choices were examined in terms of a non-specific "method of family planning" and not in terms of actual ... Spinnato JA: Informed consent and the redefining of concep- tion: a decision ill-conceived? J Matern Fetal Med 1998, 7(6):264-268. 29. Spinnato JA 2nd: Informed consent: are we there? J Perinatol 1999,...

Ngày tải lên: 13/02/2014, 06:20

... PROCEDURE  EXECUTE mọi TYPE  Quản lý tài nguyên hệ thống,  INSERT, DELETE, và UPDATE trên bảng SYS.INCVID, SYS.INCFIL, SYS.INCEXP.  EXECUTE_CATALOG_ROLE và SELECT_CATALOG_ROLE. www.themegallery.com LOGO www.themegallery.com ... phép bạn: * Sử dụng Oracle SQL để truy cập dữ liệu được lưu trữ trong hệ thống non -Oracle như là dữ liệu tổ chức trong một máy chủ Oracle. * Sử dụng các thủ tục trong Oracle để truy cấp đến ... ghi. www.themegallery.com LOGO HS_ADMIN_ROLE www.themegallery.com LOGO IMP_FULL_DATABASE www.themegallery.com LOGO www.themegallery.com SYSTEM ROLE IN ORACLE LOGO GATHER_SYSTEM_STATISTICS www.themegallery.com LOGO www.themegallery.com Contents EJBCLIENT 1 EXECUTE_CATALOG_ROLE 2 EXP/IMP_FULL_DATABASE 3 HS_ADMIN_ROLE 4 GLOBAL_AQ_USER_ROLE 6 GATHER_SYSTEM_STATISTICS 5 LOGO EXECUTE_CATALOG_ROLE www.themegallery.com LOGO Công...

Ngày tải lên: 17/02/2014, 01:20

... 'COMPLETED‘; www.themegallery.com LOGO EXP_FULL_DATABASE connect test0/p123; create table A( id varchar2(10) ); insert into A values ('abc'); connect test2/p123; create table B( id varchar2(10) ); www.themegallery.com LOGO IMP_FULLDATA_BASE  Cũng ... LOGO EXP_FULL_DATABASE www.themegallery.com LOGO www.themegallery.com Click to edit subtitle style LOGO www.themegallery.com SYSTEM ROLE IN ORACLE DEMO LOGO EXECUTE_CATALOG_ROLE  Package: DBMS_LOCK  Produres and functions:  procedure ... allocate_unique(…);  function request(…);  function convert(…);  function release(…);  procedure sleep( seconds in number); www.themegallery.com LOGO EXECUTE_CATALOG_ROLE connect test1/p123; exec DBMS_LOCK.sleep(50); www.themegallery.com LOGO GATHER_SYSTEM_STATISTICS Connect...

Ngày tải lên: 17/02/2014, 01:20

... uses indexes to enforce primary key and unique key constraints. The key (constraint) is the business rule being enforced. Creating B-tree Index on Primary Key Columns A primary key constraint ... disadvantages to creating a unique index versus allowing Oracle to automatically create the index when defining a primary key or unique key constraint. Reverse Key Indexes Reverse key indexes are useful ... unique key constraint and index on a column inline. Since an inline unique key constraint can be defined on only one column, we’ve added a SSN column that has a unique key constraint defined...

Ngày tải lên: 17/02/2014, 11:20

... Lý Oracle Database Company Logo www.themegallery.com CẤU TRÚC BACKUP VỚI RMAN  Cấu Trúc Lệnh RMAN : BACKUP [ ( (FULL | INCREMENTAL LEVEL [=] integer) | [ (FULL | INCREMENTAL LEVEL [=] integer) ... Backup ( Offline Backup ) Hot Backup ( Online Backup ) Company Logo www.themegallery.com TỔNG QUAN VỀ ORACLE DATABASE Cấu Trúc Vật Lý Cấu Trúc Luận Lý Khái Niệm Chế Độ Log trong Oracle Database Company ... database. Company Logo www.themegallery.com INCREMENTAL BACKUP  Ví Dụ :  Để thực thi một incremental backup tại level 0,ta sử dụng lệnh sau BACKUP INCREMENTAL LEVEL 0 DATABASE;  Để thực...

Ngày tải lên: 17/02/2014, 14:20

... Code Export terminated successfully without warnings Import terminated successfully without warnings EX_SUCC Export terminated successfully with warnings Import terminated successfully with warnings EX_OKWARN Export ... PARFILE=filename  Cấu trúc Parameter Files PARAMETER =value PARAMETER= (value) PARAMETER= (value1 , value2 , ) Import Object vào Schema(tt)  Importing Grants  Để thực thi Importing Grant cần có những quyền sau ... Yes Application contexts No No Yes No Auditing information Yes Yes Yes No B-tree, bitmap, domain function- based indexes Yes Foot 1 Yes Yes Yes Cluster definitions No Yes Yes Yes Column and table...

Ngày tải lên: 17/02/2014, 14:20

... animals by intrastriatal quinolinate injection [5,6]. In addition, a significant elevation of quinolinate levels has been observed in low-grade Huntington’s disease brains, suggesting that the ... juice and intestine: inadequate for role in zinc absorption. Am J Clin Nutr 35, 1–9. 16 Evans GW & Johnson PE (1980) Characterization and quantitation of a zinc binding ligand in human milk. Pediatr ... 829 hydrophobic index of the residues within the window centered on amino acids involved in metal binding, it can be noticed that regions around His6 and His8 in the human protein are predicted...

Ngày tải lên: 19/02/2014, 02:20

... 5 Calling them down The big picture shows that: • the largest institutional investors are planning to double their portfolio holdings in agricultural commodities, including farmland; • ... above) and farmland in particular. 6 According to numerous surveys within the industry, pension fund managers are seeking to invest in farmland – a new asset class offering annual returns ... has been monitoring the big “ag investment” seminars being held in posh hotels from Zurich to London to New York to Singapore over the last three years. Take the Global AgInvesting Conference...

Ngày tải lên: 19/02/2014, 15:20

... Instance +ASM2 ASM Instance +ASM2 Oracle ClusterWare Oracle Enterprise Linux Oracle ClusterWare Oracle Enterprise Linux Oracle ClusterWare Oracle Enterprise Linux Oracle ClusterWare Oracle Enterprise Linux Guest ... Clusters in Oracle VM Environments Page 24 INSTALLING ORACLE RAC IN ORACLE VM ENVIRONMENTS The following steps describe the complete installation of Oracle RAC in an Oracle VM environment. Oracle ... running Oracle RAC, as illustrated in figure 8. Appendix B explains setting up bonding devices step-by-step. For the Oracle Clusterware private interconnect, in place of Linux bonding in Dom0,...

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