• Microsoft
    Parallel Execution), targeted for this type of massive data analysis. The language is designed for ease of use with no explicit parallelism, while being amenable to efficient parallel execution on large clusters. SCOPE borrows several features from SQL. Data is modeled as sets of rows composed of...
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  • MySQL
    , and calls configuration assistants to setup the networking components and create databases. Oracle Enterprise Manager (OEM) is a graphical application included with all editions that administrators use to manage the Oracle instances. All editions include; the PL/SQL engine to develop stored...
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  • Adsa
    database consists of SGA (Database buffer, Dictionary Cache Buffers, Redo log buffers, Shared SQL pool) SMON (System MONito) PMON (Process MONitor) LGWR (LoG Write) DBWR (Data Base Write) ARCH (ARCHiver) CKPT (Check Point) RECO Dispatcher User Process with associated PGS What is clusters...
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  • Dba for 9i
    Index ? How it is implemented in Oracle Database ? An index is a database structure used by the server to have direct access of a row in a table. An index is automatically created when a unique of primary key constraint clause is specified in create table comman (Ver 7.0) 5. What is clusters...
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  • Sql Introduction to Database
    Implemented in Proprietary way: Although SQL databases conform to ANSI & ISO standards, some databases go for proprietary extensions to standard SQL to ensure vendor lock-in. Language elements The SQL language is sub-divided into several language elements, including: Clauses, which are in some...
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  • Dba Management
    extent map in OEM and Segment Advisor Information. Lastly, SQL statements will be executed to enable row management, shrink space, and resumable space allocation. 1. Automatic Storage Management (ASM) provides vertical integration of the file system on the database and the volume manager...
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  • Sql Study Matetial
    the update statement: update set = , . . . , = [where ]; An expression consists of either a constant (new value), an arithmetic or string operation, or an SQL query. Note that the new value to assign to must a the matching data type. An update statement without a where clause results in...
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  • Drm Exma Ii
    AACSB Use of Information Technology 16. In an SQL statement, which of the following parts states the conditions for row selection? A) Select B) From C) Where D) Group By Answer: C Level: Easy Page Ref: 329 Topic: Processing Single Tables Subtopic: Clauses of the SELECT Statement...
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  • Interview Question
    Interacting with a Database : SELECT : This is a DML command in SQL that retrieves data from the database in the form of query results. The command supports the following keywords and clauses : FROM This keyword specifies the name of the table. * This keyword selects all the columns of the table. WHERE...
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  • BigBench in Hadoop Ecosystem
    . The Hive implementation makes use of the JOIN syntax extensively; this is due to the fact that the current Hive version only supports a single table in the FROM-clause, which may be a composite of multiple tables itself, as in this case. Also, arguments of the WHERE-clause in the SQL-MR query...
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  • Comparison of the Enterprise Functionalities of Open Source Database Management Systems
    . Firebird 1.5.2 Maximum size of a SQL statement: 64 KB Maximum number of members in an IN list: 1499 Maximum number of joinable tables: 255 Maximum number of logical operators in WHERE clause: AND: 255; OR: No limitation found (test run has been stopped by the user at 1593); RANDOM: No...
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  • Data Base
    Microsoft SQL Server Oracle | Microsoft SQL Server | Database | Database | Schema | Database and database owner (DBO) | Tablespace | Database | User | User | Role | Group/Role | Table | Table | Temporary tables | Temporary tables | Cluster | N/A | Column-level check constraint | Column...
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  • Teach Yourself C in 21 Days
    Teach Yourself SQL in 21 Days, Second Edition Table of Contents: Introduction Week 1 at a Glance Day 1 Introduction to SQL Day 2 Introduction to the Query: The SELECT Statement Day 3 Expressions, Conditions, and Operators Day 4 Functions: Molding the Data You Retrieve Day 5 Clauses in SQL Day 6...
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  • Explain Plan
    the column used in the where clause predicate. Figure 9 shows a query running against the employees table in the HR schema, which has 107 rows: SQL> SELECT employee_id, last_name, job_id 2 3 FROM hr.employees WHERE job_id = ‘AD_VP’; SQL> Select plan_table_output 2 From table...
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  • Dba Questions
    response time? RULE ans)ALL_ROWS FIRST_ROWS_n FIRST_ROWS 131) To reduce unnecessary sorting, you can employ which of the following SQL techniques? Use the UNION instead of UNION ALL Use DISTINCT when selecting the primary key Use gourp by clause ans)Use the UNION ALL operatoe instead...
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  • Database
    Nested Queries Aggregate Operators 5.5.1 The GROUP BY and HAVING Clauses 5.5.2 More Examples of Aggregate Queries Null Values 5.6.1 Comparisons Using Null Values 5.6.2 Logical Connectives AND, OR, and NOT 5.6.3 Impact 011 SQL Constructs 5.6.4 Outer Joins 5.6.5 Disallowing Null Values...
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  • Teach Yourself Sql in 21 Days
    Teach Yourself SQL in 21 Days, Second Edition Table of Contents: Introduction Week 1 at a Glance Day 1 Introduction to SQL Day 2 Introduction to the Query: The SELECT Statement Day 3 Expressions, Conditions, and Operators Day 4 Functions: Molding the Data You Retrieve Day 5 Clauses in SQL...
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  • Practical File
    Clause, ORDER BY Clause, GROUP BY Clause, ORDER Clause, Joins, Views, GROUP Functions, Indexes etc. In a simple manner, SQL is a non-procedural, English-like language that processes data in groups of records rather than one record at a time. Few functions of SQL are: • store data • modify...
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  • Oracle
    Query Output? If you want the returning rows to be sorted, you can specify a sorting expression in the ORDER BY clause. The following select statement returns rows sorted by the values in the "manager_id" column: SQL> SELECT * FROM departments ORDER BY manager_id; DEPARTMENT_ID DEPARTMENT_NAME...
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  • Essay
    remove different database objects. Chapter 6, “Queries,” discusses the most important Transact-SQL statement: SELECT. This chapter introduces you to database data retrieval and describes the use of simple and complex queries. Each SELECT clause is separately defined and explained with reference to...
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