Oracle sql syntax
[DOC File]INTRODUCTION TO PL/SQL
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Any Oracle SQL statement may be used within PL/SQL. Full oracle syntax is allowed in such SQL statements. Within such SQL statements PL/SQL variables may be used wherever it is legal to use a constant in SQL. You can only use DML statements. DDL and DCL statements are not allowed within a PL/SQL …
[DOC File]SQL Tips
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Syntax Logic DECODE(F1, E2,E3, E4) If F1 = E2 THEN E3 ELSE E4 NVL(E1, E2) If E1 IS NULL THEN E2 ELSE E1 CASE WHEN E1 THEN E2 ELSE E3 END If E1 TRUE THEN E2 ELSE E3 Rollup. The use of a ROLLUP clause in the GROUP BY part of the SQL expression displays subtotals and grand totals depending on it’s use.
[DOC File]FIRST STEPS TOWARDS ORACLE 10g - gowthamivuppala
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The Structured Query Language is used to Communicate with RDBMS. STRUCTURED QUERY LANGUAGE : It allows the user to communicate as the server. It is Efficient . It is easy to learn and use. It is functionally complete, by allowing the use to define, retrieve and manipulate the data. ABOUT ORACLE 8 : It is the first object capable database.
[DOC File]SQL Regular Expressions
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Oracle Database 10g supports POSIX-compliant regular expressions to enhance search and replace capability in programming environments such as Unix and Java. In SQL, this new functionality is implemented through new functions that are regular expression extensions to existing functions, such as LIKE, REPLACE, and INSTR.
[DOCX File]SQL Syntax
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คำสั่ง SQL Command (Structured Query Language หรือ SQL) คือคำสั่งบริหารจัดการฐานข้อมูล (Database) โดยเฉพาะ Relational Database Management System (RDBMS) เช่น Oracle, MySQL, Microsoft SQL Server, PostgreSQL, IBM DB2, Microsoft Access ซึ่งเราสามารถใช้ SQL ...
[DOC File]Solutions Chapter 1: SQL and Data Test Your Thinking
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By default, the Oracle database 11g has case-sensitive passwords. 4. Execute the following statements in SQL*Plus and record your observations. SET NULL 'NULL' SELECT DISTINCT cost. FROM course. Solution: The SET NULL SQL*Plus command substitutes the display of any null values with another value, such as the literal ‘null’ in this example.
[DOC File]ORACLE 9i - Harsh Divya
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Oracle permits data constraints to be attached to table and columns via SQL syntax that will check data for integrity. Types of data constraints:-input/output constraints (primary key, foreign key, not null, unique) business rule constraints (check constraints, default constraints)
[DOCX File]SQL CREATE DATABASE Statement
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RDBMS is the basis for SQL, and for all modern database systems like MS SQL Server, IBM DB2, Oracle, MySQL, and Microsoft Access. The data in RDBMS is stored in database objects called tables. A table is a collection of related data entries and it consists of columns and rows.
[DOC File]Advanced PL/SQL and Oracle ETL
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Note that in SQL*Plus, the syntax of the CREATE TYPE statement requires both a semi-colon and a forward slash on the next line, similar to the required syntax of a PL/SQL anonymous block, although this is in fact a SQL statement. Now that the required SQL types have been defined globally in the database they can be referenced in PL/SQL.
[DOC File]COMMONWEALTH OF PENNSYLVANIA
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DPW ORACLE PL/SQL Best Practices. Built-in Functions. Oracle has built-in SQL analytic functions, providing powerful functionality for data grouping and returning rows of grouped data in a “data window”. Familiarization with these functions helps to a great extent. Lot of PL/SQL code can sometimes be replaced with a single built-in function.
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