The easiest way to see all tables in the database is to
query the all_tables view: SELECT owner, table_name FROM all_tables
; This will show the owner (the user) and the name of the table. You don’t need any special privileges to see this view, but it only shows tables that are accessible to you.
How can I see all tables in Oracle?
The easiest way to see all tables in the database is to
query the all_tables view: SELECT owner, table_name FROM all_tables
; This will show the owner (the user) and the name of the table. You don’t need any special privileges to see this view, but it only shows tables that are accessible to you.
How can I see all tables in SQL?
- Show all tables owned by the current user: SELECT table_name FROM user_tables;
- Show all tables in the current database: SELECT table_name FROM dba_tables;
- Show all tables that are accessible by the current user:
Why can’t I see tables in Oracle SQL Developer?
Post updated November 12, 2018. The answer is simple – you can’t see any tables,
because you don’t OWN any tables
. … In this case EMPLOYEES in your SCHEMA – the collection of objects own by your Oracle user account – points to a TABLE in HR called EMPLOYEES.
How do I view tables in SQL Developer?
- In the Connections navigator in SQL Developer, navigate to the Tables node for the schema that includes the table you want to display. If the view is in your own schema, navigate to the Tables node in your schema. …
- Open the Tables node. …
- Click the name of the table that you want to display.
How can I see all users in Oracle?
- Oracle ALL_USERS. The ALL_USERS view lists all users that visible to the current user. However, this view doesn’t describe the users. …
- Oracle DBA_USERS. The DBA_USERS view describes all user in the Oracle database. …
- Oracle USER_USERS. THe USER_USERS view describes the current user:
How many tables are in a database?
You can
create up to 2,147,483,647 tables
in a database, with up to 1024 columns in each table. When you design a database table, the properties that are assigned to the table and the columns within the table will control the allowed data types and data ranges that the table accepts.
What is the command to view tables in SQL?
mysql> SHOW TABLES
; This command returns a list of all the tables in the chosen database.
Which command will return a list of triggers?
SHOW TRIGGERS lists the triggers currently defined for tables in a database (the default database unless a FROM clause is given). This statement returns results only for databases and tables for which you have the TRIGGER privilege.
How can I see all views in Oracle?
- DBA_VIEWS describes all views in the database.
- USER_VIEWS describes the views owned by the current user. This view does not display the OWNER column.
How do I view warnings in SQL Developer?
To enable those in SQL Developer, go to
Tools-Preferences-Database-PL/SQL Compiler
. Let’s take a look at how my ‘perfectly normal’ program is evaluated with warnings enabled. ALTER SESSION SET PLSQL_WARNINGS=’ENABLE:ALL’; Did you catch the yellow squiggly lines?
How do I change the current schema in Oracle?
Just create a new connection (hit the green plus sign) and enter the schema name and password of the new default schema your DBA suggested. You can switch between your old schema and the new schema with the pull down menu at the top right end of your window.
What are the DBA tables in Oracle?
DBA_TABLES
describes all relational tables in the database
. Its columns are the same as those in ALL_TABLES .
How do I list all the tables in a schema?
- DBA_TABLES and DBA_VIEWS. SELECT ‘Table’ AS object_type, owner, table_name FROM dba_tables UNION ALL SELECT ‘View’, owner, view_name FROM dba_views;
- ALL_TABLES and ALL_VIEWS. …
- USER_TABLES and USER_VIEWS.
How can I see all tables in MySQL database?
To get a list of the tables in a MySQL database,
use the mysql client tool to connect to the MySQL server and run the SHOW TABLES command
. The optional FULL modifier will show the table type as a second output column.
What Cannot have a trigger associated with it?
Since triggers execute as part of a transaction, the following statements are not allowed in a trigger:
All create commands
, including create database, create table, create index, create procedure, create default, create rule, create trigger, and create view. All drop commands. alter table and alter database.
