Document
... SQLite is a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine. ...
... SQLite is a small C library that implements a self-contained, embeddable, zero-configuration SQL database engine. ...
2000 - PSU
... Oracle Database Concepts Database Administrator’s Guide SQL Reference PL/SQL User Guide an Reference * There are more than 200 Oracle documentation manuals ...
... Oracle Database Concepts Database Administrator’s Guide SQL Reference PL/SQL User Guide an Reference * There are more than 200 Oracle documentation manuals ...
hi! i`m fabian myron russell
... Reviewed product designs to provide input on functional requirements, product designs, schedules, or potential problems Analysed testing (regression testing) using SAS Significant Achievements: Managed a diverse Database Administration (DBA) team of 4 personnel with resources in multiple locations W ...
... Reviewed product designs to provide input on functional requirements, product designs, schedules, or potential problems Analysed testing (regression testing) using SAS Significant Achievements: Managed a diverse Database Administration (DBA) team of 4 personnel with resources in multiple locations W ...
ORACLE DATABASE HIGH AVAILABILITY
... A logical standby database has the additional flexibility of being open read-write. While data maintained by SQL Apply cannot be modified, you can add additional local tables, create local index structures to optimize reporting, use the standby database as a data warehouse, or use it to transform in ...
... A logical standby database has the additional flexibility of being open read-write. While data maintained by SQL Apply cannot be modified, you can add additional local tables, create local index structures to optimize reporting, use the standby database as a data warehouse, or use it to transform in ...
幻灯片 1 - Read
... • Pass three Unit Exams and final Exam • Start learning yourself step by step in field of database systems. Lu Wei ...
... • Pass three Unit Exams and final Exam • Start learning yourself step by step in field of database systems. Lu Wei ...
Chapter 2: Intro to Relational Model
... Example: {ID} is a candidate key for Instructor One of the candidate keys is selected to be the primary key. ...
... Example: {ID} is a candidate key for Instructor One of the candidate keys is selected to be the primary key. ...
Generate database change script
... (Data Definition Language) scripts with commands of updates. Visual Paradigm is capable in updating database, or just to generate the DDL required, by comparing differences between the design, which is the ERD(s), and the database, and to generate the DDL scripts accordingly. In addition to generati ...
... (Data Definition Language) scripts with commands of updates. Visual Paradigm is capable in updating database, or just to generate the DDL required, by comparing differences between the design, which is the ERD(s), and the database, and to generate the DDL scripts accordingly. In addition to generati ...
Security Plans
... Check parameters. When asking for a customer number, check that input is the proper data type, length, etc., before executing the query. Limit the permissions of the account that executes SQL queries. Use stored procedures (or similar techniques) to prevent users from directly interacting wi ...
... Check parameters. When asking for a customer number, check that input is the proper data type, length, etc., before executing the query. Limit the permissions of the account that executes SQL queries. Use stored procedures (or similar techniques) to prevent users from directly interacting wi ...
Data Synchronization Between Two Securent Databases
... Replication can be done using the Oracle 10g Streams feature between any two databases of Oracle10g. Policy data present in the SECURENT DB-1 database can be replicated and synchronized with the Securent DB-2 database using the Oracle 10g Streams feature. Oracle Streams enables the propagation and m ...
... Replication can be done using the Oracle 10g Streams feature between any two databases of Oracle10g. Policy data present in the SECURENT DB-1 database can be replicated and synchronized with the Securent DB-2 database using the Oracle 10g Streams feature. Oracle Streams enables the propagation and m ...
Notes
... Motivating example Transfer of money from one account to another involves two steps: • deduct from one account and credit to another If one steps succeeds and the other fails, database is in an inconsistent state Therefore, either both steps should succeed or neither should ...
... Motivating example Transfer of money from one account to another involves two steps: • deduct from one account and credit to another If one steps succeeds and the other fails, database is in an inconsistent state Therefore, either both steps should succeed or neither should ...
SQL Server AlwaysOn
... Read-only workloads on mirror database using traditional database mirroring can block replay of transactions from the principal Using Readable Secondaries, the reporting workload uses snapshot isolation to avoid blocking the replay of transactions – Snapshot isolation avoids read locks which could b ...
... Read-only workloads on mirror database using traditional database mirroring can block replay of transactions from the principal Using Readable Secondaries, the reporting workload uses snapshot isolation to avoid blocking the replay of transactions – Snapshot isolation avoids read locks which could b ...
Session Title - Seattle Area Software Quality Assurance Group
... Database Complexity Organizing a strategy for testing and QA can be difficult. – A database is a feature-rich and complex software product in its own right – Testing a database requires specialized knowledge of ...
... Database Complexity Organizing a strategy for testing and QA can be difficult. – A database is a feature-rich and complex software product in its own right – Testing a database requires specialized knowledge of ...
lesson25
... remember that the snapshot does not implement high availability; it only records data changes to a snapshot database. • When retrieving data from a snapshot, the data will be partially read from the production database and so will get only the changed data pages from the snapshot. ...
... remember that the snapshot does not implement high availability; it only records data changes to a snapshot database. • When retrieving data from a snapshot, the data will be partially read from the production database and so will get only the changed data pages from the snapshot. ...
pstmt.setInt(1, 100)
... • As we saw last week, some queries can’t be computed in SQL. • PL/pgSQL includes more programming tools than SQL • However, sometimes using PL/pgSQL will not be suitable: – If we require object-oriented programming – If accessing the database is a small part of a large Java application – Etc. • Why ...
... • As we saw last week, some queries can’t be computed in SQL. • PL/pgSQL includes more programming tools than SQL • However, sometimes using PL/pgSQL will not be suitable: – If we require object-oriented programming – If accessing the database is a small part of a large Java application – Etc. • Why ...
Database structure and space Management
... Rollback segments are areas in your database which are used to temporarily save the previous values when some updates occurred • have two main purposes : 1. If for one reason or another the user wants to cancel his/her update with a ROLLBACK statement, the former values are restored. This is possibl ...
... Rollback segments are areas in your database which are used to temporarily save the previous values when some updates occurred • have two main purposes : 1. If for one reason or another the user wants to cancel his/her update with a ROLLBACK statement, the former values are restored. This is possibl ...
Maintaining Global Integrity in Federated Relational Databases
... certain value Key Constraint: Global unique employee identifier Referential Integrity Constraints: Employee in B can only be inserted, if it also exists in A Aggregated Constraints: Sum of salary of all employees less than certain value ...
... certain value Key Constraint: Global unique employee identifier Referential Integrity Constraints: Employee in B can only be inserted, if it also exists in A Aggregated Constraints: Sum of salary of all employees less than certain value ...
P*TIME
... of differential log record streams independent of serialization order both during run time and recovery time. With each log record stream mapped to a physical disk, this means that the more log disks are added to a P*TIME database system, the shorter becomes the time to recover a database in memory ...
... of differential log record streams independent of serialization order both during run time and recovery time. With each log record stream mapped to a physical disk, this means that the more log disks are added to a P*TIME database system, the shorter becomes the time to recover a database in memory ...
Chapter 1: Introduction
... Failures may leave database in an inconsistent state with partial updates carried out E.g. transfer of funds from one account to another should either complete or not happen at all Concurrent access by multiple users Uncontrolled concurrent accesses can lead to inconsistencies – E.g. two peo ...
... Failures may leave database in an inconsistent state with partial updates carried out E.g. transfer of funds from one account to another should either complete or not happen at all Concurrent access by multiple users Uncontrolled concurrent accesses can lead to inconsistencies – E.g. two peo ...
Database Fundamentals - School of Computing Homepage
... • A database is a collection of related data which is organized to meet user needs • We assume a relational database model • Relational database design objectives: – Eliminate redundant data – Be able to locate individual records quickly – Make enhancements to the database easy to implement – Keep t ...
... • A database is a collection of related data which is organized to meet user needs • We assume a relational database model • Relational database design objectives: – Eliminate redundant data – Be able to locate individual records quickly – Make enhancements to the database easy to implement – Keep t ...
JDBC - SNS Courseware
... to submit the SQL statements to the database. Some derived interfaces accept parameters in addition to executing stored procedures. • ResultSet: These objects hold data retrieved from a database after you execute an SQL query using Statement objects. It acts as an iterator to allow you to move throu ...
... to submit the SQL statements to the database. Some derived interfaces accept parameters in addition to executing stored procedures. • ResultSet: These objects hold data retrieved from a database after you execute an SQL query using Statement objects. It acts as an iterator to allow you to move throu ...
5.02-Queries
... 5.01 discussed and explained how tables are the building blocks for all databases. ► This objective will use tables to create three types of database objects: Queries Forms Reports 5.02 Understand database queries, forms, and reports used in business. ...
... 5.01 discussed and explained how tables are the building blocks for all databases. ► This objective will use tables to create three types of database objects: Queries Forms Reports 5.02 Understand database queries, forms, and reports used in business. ...
Distributed Databases yingying
... base relation or fragment can be represented in storage by many distinct copies or replicas, stored at many distinct sites. Ideally should be “transparent to the user”. Desirable for two reasons: 1. Applications can operate on local copies instead of remote sites. ...
... base relation or fragment can be represented in storage by many distinct copies or replicas, stored at many distinct sites. Ideally should be “transparent to the user”. Desirable for two reasons: 1. Applications can operate on local copies instead of remote sites. ...
EMR A Scalable Graph-based Ranking Model for Content
... limits its applicability to large databases especially for the cases that the queries are out of the database (new samples). We propose a novel scalable graph-based ranking model called Efficient Manifold Ranking (EMR), trying to address the shortcomings of MR from two main perspectives: scalable gr ...
... limits its applicability to large databases especially for the cases that the queries are out of the database (new samples). We propose a novel scalable graph-based ranking model called Efficient Manifold Ranking (EMR), trying to address the shortcomings of MR from two main perspectives: scalable gr ...