Why Can’Ti See Tables In SQL Developer?

How do I check if two tables have the same data in SQL?

To cofirm both tables have identical data, Row count returned in below query should be same as number of rows in emp1 or emp2(row count of below query= row count of emp1= row count of emp2).

Below query returns 6 rows(4 identical rows and 2 different rows) so two tables are not identical..

How do I find the table name in SQL Developer?

To view tables: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 do I list all tables in SQL Developer?

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 do I view tables in SQL?

How to View a Table in a SQL Server DatabaseFirst, you’ll need to open Enterprise Manager and expand the registered SQL Server.Expand Databases to see a list of databases on the server.Locate and expand the specific database containing the table you wish to view.Click on Tables, which will show all of the tables in the database in the pane to the right.More items…

How do you compare two tables?

Suppose, we have two tables: t1 and t2 . The following steps compare two tables and identify the unmatched records: First, use the UNION statement to combine rows in both tables; include only the columns that need to compare. The returned result set is used for the comparison.

How can I see all tables in a database?

To show tables owned by the current user, you query from the user_tables view. SELECT table_name FROM user_tables ORDER BY table_name; Note that this view does not show the OWNER column. Also, the user_tables table does not contain the other tables that are accessible by the current user.

How can I match data from two tables in SQL?

Get Matched and Unmatched Count from Two Tables You can use full outer join to get matched and unmatched records or count from two tables which has common columns in it. SELECT Sum(CASE WHEN t1. file_name IS NOT NULL AND t2. file_n IS NOT NULL THEN 1 ELSE 0 END) AS matched_count, Sum( CASE WHEN t1.

How do I show tables in SQL Developer?

To view table data:In SQL Developer, search for a table as described in “Viewing Tables”. … Select the table that contains the data. … In the object pane, click the Data subtab. … (Optional) Click a column name to sort the data by that column.(Optional) Click the SQL subtab to view the SQL statement that defines the table.

How do I compare two tables in SQL Developer?

Select “Tools”Select “Database Diff”Select “Source Connection”Select “Destination Connection”Select the “Standard Object Types” you want to compare.Enter the “Table Name”Click “Next” until you reach “Finish”Click “Finish”More items…•

How do I filter in SQL Developer?

You can use the same column header right-mouse-click and choose ‘Filter Column’, or you can LEFT click on the column header. Either way you’ll get a filter popup that looks like this: Filtering data in a column on value. Instead of clicking, you can also enter any valid WHERE clause.

How do I get a list of table names in SQL?

1 AnswerSELECT TABLE_NAME.FROM INFORMATION_SCHEMA.TABLES.WHERE TABLE_TYPE = ‘BASE TABLE’ AND TABLE_SCHEMA=’dbName’

How can I see all tables in MySQL?

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.

How do I get the column name in all tables in SQL Developer?

To select column names of a given table you can use the following query: Select column_name from user_tab_cols where table_name =3D’TABLE_NAME’; Remember the table name should be in capital letters. If you query table_name and column_name in dba_tab_columns you will get the required.

How do I drop multiple tables in SQL Developer?

Select from the list on the left all the tables you want to drop. … Press the Edit menu and select Replace.Type in the find field the comma symbol ,Type in the replace field the following text ;\ndrop table . … Type drop table before your first table and ; after your last one.You are ready to drop your tables.