in navicat you can arrange the order of the columns but i have yet to find a way to sync the changes with the database. i saw a similar question here -> Rearrange column order in Sqlyog but haven't found anything similar in navicat. i have many tables that need to be fixed for export to excel and the order is important in the readability/presentation. typing out sql code for each move would be way too tedious. thanks in advance.
you can't do it in navicat , you have to run a sql query for that purpose
You can reorder columns using SQLyog. To change the sequence of columns in a table, select the table in the Object Browser and select Table -> More Table Operations -> Reorder Column(s) (Ctrl+Alt+R) from the popup menu.
Select any column and click Up or Down button to move the column up / down. Having re-sequenced the columns, click Re-Order to save the table with changed structure. The column data in the table gets re-arranged accordingly.
This is a really old question i Stumbled on going to answer just in case someone needs
Navicat provides the ability to change the column order in a table by using the design table feature
Either right click on the table name or press ctr-d on the top of the screen there are arrows to move a column up or down
By pressing on the SQL preview tab on the top you can actually see the ALTER TABLE statements navicat is going to run
You can also copy-paste this Statement and run on any other test database you may have or as a git migration
Its a good idea to always read the SQL Preview as some times Navicat may use DROP statements and you would want to take a backup before something like that
Related
I am new to GeoKettle (Spoon) of Pentaho and I am currently rows from an Excel-file into my database. Now I want to avoid duplicates in my databasetable. That is why I want to insert only those rows into my database table which aren't there yet (to have only unique records in my database table).
And as far as I know, there are two ways to realize that. The first way I tried was with the Insert/Update step (I have disabled the Update functionality) and defined all the columns which have to be equal in order to insert the record or not. But it does not work. All records are still inserted into the database.
That is why I am trying to do the (according to pentaho) much faster option which is a "Table Output" with an "Update" error handling step as shown in the picture.
As shown in the picture, the arrow which is pointing from "table output" to "update" is black. But I need a red dotted one for error handling of step . But I do not know how to create this. In tutorials I often see that there pops up a little window with 2 options like in the picture:
But I do not get that popup. If I want to create a hop, I will have to mark both steps and do a right-click on one of them.
So in which possible ways can I create such a red dotted arrow? In the end, it has to look like this:
Thank you so much in advance!!
You have a problem with your setup. Or with your version of the PDI. The functionality of an error step was introduced in V4 but fully implemented for all steps around V6.
Download a fresh PDI from SourceForge. V7.1 is really a robust and stable edition. Unzip and test.
By the way, what you want to achieve is know as the CRUD pattern. CRUD for Create, Read, Update, Delete. The step doing this the Merge Rows (diff) (in the Joins family). You tell the steps which columns to check, and it produce a new column with the value identical, changed, new, or deleted. You can them redirect the flow in a Switch / Case to do the appropriate action. Further information here (V4).
I would like to recreate a few existing Access queries in a new database so that I can tweak them a bit. The problem I am running into is that some of the tables being queried do not seem to exist in the current database. These tables all end with a 1.
For example, INV_MTL_ITEM_LOCATIONS is an imported table in the database, but
INV_MTL_ITEM_LOCATIONS_1 is being queried even though it does not show up in the tables panel on the left.
Is this some type of duplication functionality that I am not aware of? The query runs without any errors.
No, the query runs on an aliased table. It's actually just querying INV_MTL_ITEM_LOCATIONS
Using SQL, you can create an alias for a table. This is especially useful when querying the same table twice in one query, but also commonly used to shorten queries.
Your query will probably look something like this:
SELECT something
FROM INV_MTL_ITEM_LOCATIONS AS INV_MTL_ITEM_LOCATIONS_1
Access automatically creates these aliases when using the query builder and if you add the same table more than once. When removing the non-aliased table, the other one stays aliased.
This is entirely normal, and as far as I know, never a problem.
Erik's answer explains it perfectly.
But to be exhaustive, you CAN actually create a query on a table that is NOT in the current database (nor a linked table).
Here is an example:
SELECT *
FROM History IN 'c:\test\mySecretBackend.accdb'
You can also create that in design view, just by
setting the query's Source Database property to c:\test\mySecretBackend.accdb
click on Show table
So I don't want this thread to be marked as spam, as a previous thread was on this topic was, so I will explain what I have done so far and my issue is and ask if there are any solutions.
I have a MySQL database on my laptop that I need to migrate to DB2 on iSeries. I'm using a tool, I won't say which one because of the spam issue, which allows me to "copy" a table in my MySQL database and "paste" it into my DB2 database.
The issue that I'm having is because the table names and column names contain spaces in the MySQL db, the tool is failing on the paste. I confirmed this by altering one table by replacing the spaces with underscores and the copy worked perfectly. I have over a hundred tables I need to copy over and don't want to have to manually edit every table and column name.
Is there a way to globally replace spaces with underscores in MySQL table names and columns?
Any other ideas? I'm also researching a way to force the query the tool creates to enclose the object names in quotes, but have had no luck so far.
Thanks for any help and suggestions you can provide.
Since Stack Overflow is about helping to solve programming problems, I'm going to ignore the issue of deficiencies in the chosen tool and propose a programming solution to the larger problem - DB2 does not allow spaces in table and column names. You did ask for any suggestions...
Write code that reads the MySQL catalog tables. In DB2 they'd be SYSTABLES, SYSVIEWS, SYSINDEXES, SYSCOLUMNS, etc. Read SYSTABLES and use that as the 'primary' source for the rest of the code. Check the table name; if it has an embedded space, replace it with an underscore. Use SYSCOLUMNS to generate a CREATE TABLE statement that will create the new table (in a new MySQL database?) - also performing space to underscore replacement. After issuing the CREATE TABLE, generate an SQL statement that will INSERT INTO the new table the columns from the old table; again doing the space to underscore substitutions. Once the new table is populated, generate SQL statements to CREATE VIEW, CREATE PROCEDURE, CREATE FUNCTION, etc.
The general idea is that you will completely re-create your MySQL database with table, view and column names that are immediately compatible with DB2 for i so that your tool can do it's thing.
Of course, if you go to that much trouble it'll probably be just as easy to directly CREATE TABLE, etc on the IBM i side rather than go through an intermediate tool that isn't quite what you need.
I have a database backup that I'm trying to load so that I can extract some historical averages. I think it was a MySQL database, but with some syntax adjustments I was able to create the one and only table I need in Oracle 11g. However, I'm having problems with the INSERT INTO portion of the backup. Basically, some of these text fields were taken directly from fields on our website, and whenever users entered an apostrophe, it messes up everything that follows. Finding all instances of this would take a very long time...
Is there any way to handle this?
Also, all the text in SQL Developer runs horizontally on 2 or 3 rows. Is there any way to fix that? It makes for a lot of side-scrolling instead of vertical scrolling.
Use phpMyAdmin to reload the database into mySQL.
When I use MySQL workbench and get a huge dataset, i find it annoying that if I accidentally click on a row, workbench tries to order the data by that row - generally taking several minutes to complete.
I'm of the opinion that if I wanted a dataset ordered a particular way, I would have used an order-by clause.
Is there any way to disable the behavior of ordering a dataset by clicking on a particular column?
Unfortunately I think you're out of luck in this regard, unless of course you download the source code for MySQL Workbench and change the way the UI behaves and add in an option to disable column ordering on click.
Source is available here. (Change the 'select platform' drop down to 'Source Code')