ALTER Table in PGAdmin4 - postgresql

I can't seem to find where I can ALTER TABLE from within Pgadmin4; I don't see any options to. I would like to edit the default values for some tables/columns as 0 instead of NULL. Thanks!

You can right click on the table of interest, then select properties
On the columns tab, you can add a new one or edit an existing column.
By clicking on the edit icon on its left, you gain access to finer controls. Go to the constraint tab and there you can set the default value.

Related

Remove ability in Tinymce to insert a table into a table

Using the standard Tinymce Table plugin it is possible to insert a table into a cell of an existing table. I want to prevent this, preferably by disabling the Table menu option when the cursor is currently within a table.

Query field is disabled in edit mode in pgadmin 4

As the title already says:
I am trying to make a SELECT statement in the "view/edit data" mode in pgadmin 4, but the query window is disabled. How can I enable it? (I am the owner of all the database, the schema and table and have all privileges for all of them)
You cannot edit the query in VIEW DATA mode.
If you want to write custom SELECT/SQL code then use Query tool option.
You need to set a primary key on the table to be able to add items to the table in "View/Edit Data" mode.
If you want to be able to modify the sql query instead of view/edit data go to Scripts -> Select Script

SQL WorkbenchTable Creation

I am making tables in SQL Workbench. I am assuming that in SQL Workbench when a table is created it contains updated_at and created_at columns by default. Is this correct?
I am not sure whether such columns would be there by default or not.
You should check the settings. You can always check your table status by using below suggested queries:
SHOW TABLE STATUS FROM myDatabase LIKE 'myTable';
DESCRIBE myDatabase.myTable;
This link might help you:
https://dev.mysql.com/doc/workbench/en/wb-table-editor-columns-tab.html
Delete a column that you don't want by hovering the pointer over a table > right click > alter table and then make desired changes.
Work bench does not provide the created_at and updated_at columns by itself. But the MySQL as a database provides it. You can even disable it.

How to insert a row in postgreSQL pgAdmin?

I am new to postgreSQL. Is there any way to insert row in postgreSQL pgAdmin without using SQL Editor (SQL query)?
The accepted answer is related to PgAdmin 3 which is outdated and not supported.
For PgAdmin 4 and above, the application is running in the browser.
After you create your table, you have to make sure that your table has a primary key otherwise you couldn't edit the data as mentioned in the official documentation.
To modify the content of a table, each row in the table must be
uniquely identifiable. If the table definition does not include an OID
or a primary key, the displayed data is read only. Note that views
cannot be edited; updatable views (using rules) are not supported.
1- Add primary key
Expand your table properties by clicking on it in the pgAdmin4 legend. Right-click on 'Constraints', select 'Create' --> 'Primary Key'to define a primary key column.
2- View the data in excel like format
Browser view, right-click on your table --> select View/Edit Data --> All Rows
3- Add new row / Edit data
On the Data Output tab at the bottom of the table below the last row, there will be an empty row where you can enter new data in an excel-like manner. If you want to make updates you can also double click on any cell and change its value.
4- Save the changes
Click on the 'Save' button on the menu bar near the top of the data window.
I think some answers don't provide an answer to the original question, some of them insert records but with SQL statements and the OP clearly said WITHOUT, so I post the right answer: (Step by Step)
Alternatively you can use the query tool:
INSERT INTO public.table01(
name, age)
VALUES (?, ?);
use the lightning icon to execute.
You can do that without the SQL editor, but it's better to do this by queries.
Although, in pgAdmin, there is an option which you can click to have an excel-like window where you can add and update data in a table without using SQL language. Please select a table which you want to add a row first and click on the next icon here below.
Editing table data without primary key is forbidden
If your tables don't have a primary key or OIDs, you can view the data only.
Inserting new rows and changing existing rows isn't possible for the Edit Data tool without primary key.
Use INSERT:
INSERT INTO tablename (field1, field2) values ('value1', 2);
on pgAdmin 4, right-click on the table and use the item like below. You can also use that script in the background.
Finally, to watch the inserted data do like below. You can also use that script in the background.
All the above are correct answers. I just want to add that : When u create a table, make sure u have atleast one column as PRIMARY_KEY. Then, just follow the GUI : View/Edit data. U can add row as the last row of the table
As an update, the icon for the save button is different in pgAdmin 4.
This is how the menu should look after right-clicking on the table you want to insert into and hovering over "View/Edit Data".
After adding rows, either press F6 (on Ubuntu) or click the icon that looks like a stack of discs (database icon) with a lock on it.
Zoomed in:
Wide View:

Oracle SQL Developer SQL Tab is blank

I've searched through all of the responses on SQL Developer and I haven't found a response that matches this question. I need to be able to see the SQL for a table/view etc by clicking on the sql tab, but for now it simply shows me a blank screen. Has anyone else solved this? It works fine in toad and I can see the code but we have a new server and I can't connect to it with toad. Any help would be nice.
When i connect to SQL Developer and type alter the session set current_schema=xyz then i am connect as if i was that user.
When i open the branche other users, and navigate to a table of user xyz, and click table A_TABLE, then i see the definition of that table in the columns tab and i have several other tabs, such as data to show the data in the table. So far so good.
But when i navigate to the SQL tab (on the far right of the tabs) i would expect to see the DLL of the table, but this tab stays empty. (this is also posted in another thread, but no good solution)
Is there a way to get this working ?
Probably tab in the backend looks in user_tables and user_tab_columns to generatie the DLL.
And since i did an alter session, the table are probably in the all_tables view.
It works fine when i log in and click my own tables, but not that of other users.
Same think with view definitions.
Also right clicking on the object and choose quick DLL results in empty file/worksheet of clipboard.
In short, can the tab SQL only work for schema owners of dba's or can it also work when using alter session set current_schema = xyz
Not sure exactly what you mean, but:
1. Can you connect to your db using Sqldev? Can you expand the list of schema objects and see your tables?
2. If so then when you open a sql worksheet, yes it is blank., this is where you type your sql statement and execute it. Type the FROM clause first, then go back and add the select clause and sql dev will show a drop down list of columns for the tables you can select from w/o typing the col names.
3. If you want to see you table data, simply double click the table in the tree browser on the left.
You can also build queries graphically though drag and drop.
But, normal behavior of the SQL worksheet window is to display blank, so not sure exactly what you expecting to happen.
If you select a view and right click and select Export DDL and Select Save to Worksheet, then the DDL is pasted into a worksheet: Example:
CREATE TABLE "HR"."COUNTRIES"
( "COUNTRY_ID" CHAR(2 BYTE) CONSTRAINT "COUNTRY_ID_NN" NOT NULL ENABLE,
"COUNTRY_NAME" VARCHAR2(40 BYTE),
"REGION_ID" NUMBER,
CONSTRAINT "COUNTRY_C_ID_PK" PRIMARY KEY ("COUNTRY_ID") ENABLE,
CONSTRAINT "COUNTR_REG_FK" FOREIGN KEY ("REGION_ID")
REFERENCES "HR"."REGIONS" ("REGION_ID") ENABLE
) ORGANIZATION INDEX NOCOMPRESS PCTFREE 10 INITRANS 2 MAXTRANS 255 LOGGING
STORAGE(INITIAL 65536 NEXT 1048576 MINEXTENTS 1 MAXEXTENTS 2147483645
PCTINCREASE 0 FREELISTS 1 FREELIST GROUPS 1 BUFFER_POOL DEFAULT)
TABLESPACE "USERS"
PCTTHRESHOLD 50;
SQL DDL statements show the 'code' to create the schema object.