SQL Object Level Recovery Native
... you can restore database objects to any database, on any server, across your entire enterprise. SQL Object Level Recovery Native can also be purchased in the SQL Backup Bundle or SQL Toolbelt. Bundles of our SQL tools represent a substantial saving over the cost of purchasing the products individual ...
... you can restore database objects to any database, on any server, across your entire enterprise. SQL Object Level Recovery Native can also be purchased in the SQL Backup Bundle or SQL Toolbelt. Bundles of our SQL tools represent a substantial saving over the cost of purchasing the products individual ...
Lecture 2 PowerPoint
... 1. Comment A comment is optional text that explains you program. Comments usually describe what a program does or why code was changed. Compilers are for humans—the compiler ignores them. A comment is introduced by two consecutive hypens and continues until the end of the line. -- This is a comment ...
... 1. Comment A comment is optional text that explains you program. Comments usually describe what a program does or why code was changed. Compilers are for humans—the compiler ignores them. A comment is introduced by two consecutive hypens and continues until the end of the line. -- This is a comment ...
ppt
... • Can declare a cursor on a relation or query statement (which generates a relation). • Can open a cursor, and repeatedly fetch a tuple then move the cursor, until all tuples have been retrieved. – Can use ORDER BY clause in cursor queries to control the order in which tuples are returned. • Fields ...
... • Can declare a cursor on a relation or query statement (which generates a relation). • Can open a cursor, and repeatedly fetch a tuple then move the cursor, until all tuples have been retrieved. – Can use ORDER BY clause in cursor queries to control the order in which tuples are returned. • Fields ...
An MCQ on ISA
... 94) You are determining which type of SQL statement to use in your Oracle database. Which of the following choices identifies the type of statement you would use when trying to obtain data from the database? A. select B. update C. insert D. delete 95) You are identifying a table for use in your sele ...
... 94) You are determining which type of SQL statement to use in your Oracle database. Which of the following choices identifies the type of statement you would use when trying to obtain data from the database? A. select B. update C. insert D. delete 95) You are identifying a table for use in your sele ...
SQL-DDL - Computer Science and Engineering
... set password=password(‘new password’); show databases; -- show the list of databases available to you use dbname; -- use the database called dbname show tables; -- show tables available create table student ( id integer not null, ...
... set password=password(‘new password’); show databases; -- show the list of databases available to you use dbname; -- use the database called dbname show tables; -- show tables available create table student ( id integer not null, ...
SELECT first_name, last_name, salary FROM employees a WHERE
... • Oracle: a collection of database objects belonging to a single user • The schema has the name of the owner • Normally, only the owner has access to the ...
... • Oracle: a collection of database objects belonging to a single user • The schema has the name of the owner • Normally, only the owner has access to the ...
End of SQL: Triggers, Impedance Mismatch and Transactions
... When the event happens, the system will check the constraint, and if satisfied, will perform the action. NOTE: triggers may cause cascading effects. Database vendors did not wait for standards with triggers! ...
... When the event happens, the system will check the constraint, and if satisfied, will perform the action. NOTE: triggers may cause cascading effects. Database vendors did not wait for standards with triggers! ...
Designing Real-time Sensor Data Warehouse Architecture Using
... – Organizes database changes in a manageable manner – Major drawback – lack of transactionality (will work it out) ...
... – Organizes database changes in a manageable manner – Major drawback – lack of transactionality (will work it out) ...
SQL PRIMARY KEY Constraint
... We can query the view above as follows: SELECT * FROM [Current Product List] Another view in the Northwind sample database selects every product in the "Products" table with a unit price higher than the average unit price: CREATE sVIEW [Products Above Average Price] AS SELECT ProductName,UnitPrice F ...
... We can query the view above as follows: SELECT * FROM [Current Product List] Another view in the Northwind sample database selects every product in the "Products" table with a unit price higher than the average unit price: CREATE sVIEW [Products Above Average Price] AS SELECT ProductName,UnitPrice F ...
Masque/sql{ An E cient and Portable Natural Language Query
... system can be con gured as easily as the old version. The con guration procedure is simple and semi-automated: the built-in domain-editor helps the user describe the entity types of the world to which the database refers, using an is-a hierarchy. The user is then assisted to declare the words expect ...
... system can be con gured as easily as the old version. The con guration procedure is simple and semi-automated: the built-in domain-editor helps the user describe the entity types of the world to which the database refers, using an is-a hierarchy. The user is then assisted to declare the words expect ...
SQL Consolidation Planning - The SQL Server Conference
... What tools to use to capture MAP Tool SCOM Manually in perfmon SQLH2 Tool (codeplex) ...
... What tools to use to capture MAP Tool SCOM Manually in perfmon SQLH2 Tool (codeplex) ...
course
... Permits definition of procedures in SQL, with if-then-else statements, for and while loops, etc. ...
... Permits definition of procedures in SQL, with if-then-else statements, for and while loops, etc. ...
DBA Daily Checklist - How to Example Code
... 2. Verify rollback segment. Status should be ONLINE, not OFFLINE or FULL, except in some cases you may have a special rollback segment for large batch jobs whose normal status is OFFLINE. a) Optional: each database may have a list of rollback segment names and their expected statuses. b) For current ...
... 2. Verify rollback segment. Status should be ONLINE, not OFFLINE or FULL, except in some cases you may have a special rollback segment for large batch jobs whose normal status is OFFLINE. a) Optional: each database may have a list of rollback segment names and their expected statuses. b) For current ...
Chapter 4: SQL
... SQL:1999 supports functions and procedures Functions/procedures can be written in SQL itself, or in an external programming language. Functions are particularly useful with specialized data types such as images and geometric objects. Example: functions to check if polygons overlap, or to compa ...
... SQL:1999 supports functions and procedures Functions/procedures can be written in SQL itself, or in an external programming language. Functions are particularly useful with specialized data types such as images and geometric objects. Example: functions to check if polygons overlap, or to compa ...
select
... The SQL standard defines embeddings of SQL in a variety of programming languages such as C, Java, and Cobol. A language to which SQL queries are embedded is referred to as a host language, and the SQL structures permitted in the host language comprise embedded SQL. The basic form of these languages ...
... The SQL standard defines embeddings of SQL in a variety of programming languages such as C, Java, and Cobol. A language to which SQL queries are embedded is referred to as a host language, and the SQL structures permitted in the host language comprise embedded SQL. The basic form of these languages ...
Using XAMPP for SQL and PHP
... NOTE2: It is easier to create in Notepad and copy into the command line, using right-click to Paste C:\xampp\mysql\bin>mysql -u root -p (-p is optional - for a password) Enter password: Welcome to the MySQL monitor. Commands end with ; Type 'help;' or '\h' for help. mysql> create database payroll; Q ...
... NOTE2: It is easier to create in Notepad and copy into the command line, using right-click to Paste C:\xampp\mysql\bin>mysql -u root -p (-p is optional - for a password) Enter password: Welcome to the MySQL monitor. Commands end with ; Type 'help;' or '\h' for help. mysql> create database payroll; Q ...
p1-programming-constructs-05-12-16
... More specifically, table is an array of four memory locations and in each memory location of that array there is an array that has five memory locations. So table[0] refers to the first row of the 2D array and table[1] refers to the second row, table[2] refers to the third row and table[3] refers to ...
... More specifically, table is an array of four memory locations and in each memory location of that array there is an array that has five memory locations. So table[0] refers to the first row of the 2D array and table[1] refers to the second row, table[2] refers to the third row and table[3] refers to ...
Oracle PL/SQL
... – A cursor is a temporary work area created in the system memory when a SQL statement is executed. – A cursor contains information on a select statement and the rows of data accessed by it. This temporary work area is used to store the data retrieved from the database, and manipulate this data. – A ...
... – A cursor is a temporary work area created in the system memory when a SQL statement is executed. – A cursor contains information on a select statement and the rows of data accessed by it. This temporary work area is used to store the data retrieved from the database, and manipulate this data. – A ...
Programming in Oracle with PL/SQL
... – Only a single copy of the procedure needs to be loaded into memory for execution by multiple users. ...
... – Only a single copy of the procedure needs to be loaded into memory for execution by multiple users. ...
Altering tables
... emp_id int IDENTITY CONSTRAINT PK_Employee_Emp_id PRIMARY KEY FOREIGN KEY – it requires only the values which occurs in the corresponding referenced column. CONSTRAINT FK_Employee_Mgr_id FOREIGN KEY(manager_id) REFERENCES Employee(emp_id) UNIQUE - it guarantees that values in the column are distinct ...
... emp_id int IDENTITY CONSTRAINT PK_Employee_Emp_id PRIMARY KEY FOREIGN KEY – it requires only the values which occurs in the corresponding referenced column. CONSTRAINT FK_Employee_Mgr_id FOREIGN KEY(manager_id) REFERENCES Employee(emp_id) UNIQUE - it guarantees that values in the column are distinct ...
SQL Injection in Web Application: A Review Sangeeta1 1MTech
... SQLIA vulnerability, there are many different types of attack techniques that they can leverage. Depending on the type and extent of the vulnerability, the results of these Attacks can include crashing the database, gathering information about the tables in the database schema, establishing covert c ...
... SQLIA vulnerability, there are many different types of attack techniques that they can leverage. Depending on the type and extent of the vulnerability, the results of these Attacks can include crashing the database, gathering information about the tables in the database schema, establishing covert c ...
SQL – Part II
... – Create a new table named SmallCust, consisting of all fields from the Customer table and those rows in which the credit limit is less than or equal to $7,500. SELECT INTO Name of table to create FROM WHERE ...
... – Create a new table named SmallCust, consisting of all fields from the Customer table and those rows in which the credit limit is less than or equal to $7,500. SELECT INTO Name of table to create FROM WHERE ...
View
... statement should only affect rows that meet a specified criterion. WHERE clauses are not mandatory clauses of SQL DML statements, but should be used to limit the number of rows affected by a SQL DML statement or returned by a query. WHERE is an SQL reserved word. EXAMPLE : SELECT * FROM student WHER ...
... statement should only affect rows that meet a specified criterion. WHERE clauses are not mandatory clauses of SQL DML statements, but should be used to limit the number of rows affected by a SQL DML statement or returned by a query. WHERE is an SQL reserved word. EXAMPLE : SELECT * FROM student WHER ...
FOREIGN KEY
... the database. A table consists of a table name, a set of fields with their names and data types, and specified constraints. ...
... the database. A table consists of a table name, a set of fields with their names and data types, and specified constraints. ...
Null (SQL)
Null is a special marker used in Structured Query Language (SQL) to indicate that a data value does not exist in the database. Introduced by the creator of the relational database model, E. F. Codd, SQL Null serves to fulfill the requirement that all true relational database management systems (RDBMS) support a representation of ""missing information and inapplicable information"". Codd also introduced the use of the lowercase Greek omega (ω) symbol to represent Null in database theory. NULL is also an SQL reserved keyword used to identify the Null special marker.For people new to the subject, a good way to remember what null means is to remember that in terms of information, ""lack of a value"" is not the same thing as ""a value of zero""; similarly, ""lack of an answer"" is not the same thing as ""an answer of no"". For example, consider the question ""How many books does Juan own?"" The answer may be ""zero"" (we know that he owns none) or ""null"" (we do not know how many he owns, or doesn't own). In a database table, the column reporting this answer would start out with a value of null, and it would not be updated with ""zero"" until we have ascertained that Juan owns no books.SQL null is a state (unknown) and not a value. This usage is quite different from most programming languages, where null means not assigned to a particular instance.