Oracle SQL: Update a table with data from another table
Table 1: id name desc ———————– 1 a abc 2 b def 3 c adf Table 2: id name desc ———————– 1 x … Read more
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How do I find duplicate values in a table in Oracle?
What’s the simplest SQL statement that will return the duplicate values for a given column and the count of their occurrences in an … Read more
Is there any boolean type in Oracle databases?
Is there any Boolean type in Oracle databases, similar to the BIT datatype in Ms SQL Server? 11 Answers 11
Oracle: how to UPSERT (update or insert into a table?)
The UPSERT operation either updates or inserts a row in a table, depending if the table already has a row that matches the … Read more
Best way to do multi-row insert in Oracle?
I’m looking for a good way to perform multi-row inserts into an Oracle 9 database. The following works in MySQL but doesn’t seem … Read more
Difference between a user and a schema in Oracle?
What is the difference between a user and a schema in Oracle? 15 Answers 15
Liquibase lock – reasons?
I get this when running a lot of liquibase-scripts against a Oracle-server. SomeComputer is me. Waiting for changelog lock…. Waiting for changelog lock…. … Read more
Update statement with inner join on Oracle
I have a query which works fine in MySQL, but when I run it on Oracle I get the following error: SQL Error: … Read more
Oracle: If Table Exists
I’m writing some migration scripts for an Oracle database, and was hoping Oracle had something similar to MySQL’s IF EXISTS construct. Specifically, whenever … Read more
What is the difference between Views and Materialized Views in Oracle?
What is the difference between Views and Materialized Views in Oracle? 8 Answers 8