oracle-sql – CodeRavo

Exporting Data to CSV Using SQL*Plus

Introduction SQLPlus is an Oracle database utility that enables users to connect to an Oracle database … Exporting Data to CSV Using SQL*PlusRead more

column-formatting, csv-export, data-spooling, database-reporting, oracle-sql, sql-plus

Extracting Substrings up to a Specific Character in Oracle SQL

In Oracle SQL, you may encounter situations where you need to extract a substring from a … Extracting Substrings up to a Specific Character in Oracle SQLRead more

instr, oracle-sql, regexp-substr, regular expressions, substr, substring extraction

String Concatenation in Oracle SQL

Combining Text and Data with String Concatenation In relational databases like Oracle, often you need to … String Concatenation in Oracle SQLRead more

COALESCE, concat, concatenation-operator, data manipulation, database, null values, nvl, oracle-sql, String Concatenation

Understanding Oracle Sequences: Retrieving Current Values Without Incrementing

Introduction Oracle sequences are database objects used to generate unique numbers, typically for primary key values. … Understanding Oracle Sequences: Retrieving Current Values Without IncrementingRead more

currval, Database Management, nextval, oracle-sequences, oracle-sql, sequence-retrieval

Working with Dates in Oracle SQL

Working with Dates in Oracle SQL Dates are a fundamental data type in most database systems, … Working with Dates in Oracle SQLRead more

date-conversion, date-format, date-literals, nls-date-format, ora-01861, oracle-sql, sql-tutorial, to-date

Exploring Oracle SQL: Listing Tables in a Schema

Welcome to this tutorial on how to list all tables within a specific schema using Oracle … Exploring Oracle SQL: Listing Tables in a SchemaRead more

all-tables, data-dictionary, dba-objects, oracle-sql, schema, tab-view, tables, user-objects, user-tables

Understanding Oracle Database Identifiers: SID, Instance Name, and Database Name

Introduction When working with Oracle databases, it is crucial to identify various database parameters such as … Understanding Oracle Database Identifiers: SID, Instance Name, and Database NameRead more

database-name, global-name, instance-name, Oracle Database, oracle-identifiers, oracle-sql, sid, sys-context

Retrieving Top Rows in Oracle SQL: Techniques and Examples

Introduction In database management, retrieving a specific number of top rows based on certain criteria is … Retrieving Top Rows in Oracle SQL: Techniques and ExamplesRead more

analytic-functions, offset-fetch, oracle-sql, row-number, rownum, top-n-rows

Effective Date Comparisons in Oracle SQL

Introduction Working with dates is a common task in database management, and Oracle SQL provides robust … Effective Date Comparisons in Oracle SQLRead more

best practices, Date Comparison, date-literal, locale-settings, nls-date-format, oracle-sql, to-date, trunc

Selecting a Single Row in Oracle SQL

Selecting a Single Row in Oracle SQL When working with Oracle databases, you may often encounter … Selecting a Single Row in Oracle SQLRead more

database-query, fetch-first, limit-results, Oracle Database, oracle-sql, rownum, SELECT statement, single-row, sql-optimization, sql-tutorial