The Exception section of a PL/SQL Block starts with the reserved keyword EXCEPTION. This section is optional. Any errors in the program can be handled in this section so that the PL/SQL Blocks terminates gracefully. If the PL/SQL Block contains exceptions that cannot be handled, the Block t...
2.1. The normal rules of arithmetic operator precedence apply in SQL The normal rules of arithmetic operator precedence apply in SQL: multiplication and division are performed first. followed by addition and subtraction. If operators of the same precedence are used, they are performed from left to ...
PL/SQL Collections A collection is a group of items that share the same type and are arranged in a particular order. It is a broad term that encompasses lists, arrays, and other data structures commonly used in traditional programming. Each element in a collection is assigned a specific subsc...
PLSQL stands for "Procedural Language extensions to SQL", and is an extension of SQL that is used in Oracle. PLSQL is closely integrated into the SQL language, yet it adds programming constructs that are not native to SQL.Our tutorial will start with the basics of Oracle such as how to...
Oracle SQL Plus常用命令 set linesize 200 set linesize 可以设置一行的字符数,默认为80个字符。 set linesize 200,表示设置一行为200个字符。 l(List) 可以显示缓存区中的最后执行的内容。 run / r 以上三个命令功能是一致的,重新运行缓存区中的语句。
How to filter on date values in SQL Using Two Filters How to use two filters in a SELECT query in SQL More Than Two Filters How to use more than two filters in a single query What is NULL? What a NULL value is and how it’s treated in SQL ...
NoSQL Database se puede ejecutar en la nube o localmente para las aplicaciones que requieren modelos de datos y cargas de trabajo flexibles, acceso a datos ultrarrápido, predecible y exigente o API fáciles de usar.
Backup Type SQL Server Command Oracle (RMAN) Command Full backup database Backup database Files or filegroups backup database db1 filegroup=’db1file1’ to disk … Backup as backups datafile ‘/u01/data/users01.dbf’; Tablespaces Backup tablespace system, users; Logs (transaction and archive...
Read more about the common use cases (PDF) Oracle Playbook-serien Vi har samlet hemmelighetene til våre folk, prosesser og systemstrategi. Vi ønsker å dele dem med dere. Få detaljene Get started with NoSQL Database Watch a tutorial ...
Chapter 4. A Lightning SQL Tutorial SQL is the language that you use to manipulate relational data. Other languages for data manipulation do exist, but SQL is the most common, … - Selection from Oracle SQL*Plus: The Definitive Guide, 2nd Editio