I'm trying to use mysql workbench as a query editor for my project. My output in the results viewer looks like this:
Even if I set varbinary/binary characters to show up as non-binary I still get this output. And it is for all fields whether they be text, int, date, etc.
Can anyone help?
You must choose "Query" - "Execute (All or Selection) to text" in the up menu
I keep finding that MySQL Workbench shows query results as BLOB. e.g:
SELECT INET_NTOA(167773449) --> BLOB
If I select to 'view value' I can determine the text value is '10.0.5.9' but it's pretty irritating when I SELECT multiple rows and want to glance at the contents.
Is there a way around this or is it a limitation of the tool?
Background:
This problem occurs when the binary string values (BINARY/VARBINARY type) are returned in the results. The binary strings contain the zero bytes and for some reason, apparently security, have not been shown by default. More details about binary strings here.
Even in the reported example SELECT INET_NTOA(167773449), the function returns binary string. Check this for reference.
Solution:
Since MySQL Workbench v5.2.22, it can be set through preferences whether to SHOW or HIDE such values.
In MySQL Workbench, go to: "Edit -> Preferences... -> SQL Queries" OR "Edit -> Preferences... -> SQL Editor -> SQL Execution" (depending upon what version of Workbench you have).
Check the option 'Treat BINARY/VARBINARY as nonbinary character string' to show the actual value.
Reference:
The original issue has been reported and answered with fix here.
What you can do is Cast your BLOB type to a string. This will simply allow you to glance at whats in your BLOB type when browsing your select statement.
SELECT CAST(`blob_column_name` AS CHAR(10000) CHARACTER SET utf8) FROM `table_name`;
Another (slightly shorter) solution
SELECT CONVERT(FROM_BASE64(myMEDIUMTEXTcol) using utf8) notAblobject FROM myTable;
Unrelated background
My table contains a MEDIUMTEXT column which stores a Base64 string. In my frontend JS code I kept getting an Object returned instead of a string. The Object appeared to contain an array of ASCII values.
Testing the associated query in phpMyAdmin indicated the result was a BLOB. I updated my SQL query, as above, in order to get a simple string returned instead of an Object.
Using the example in provided by DBForge for COLUMN_LIST against the table assets, when I run the following:
SELECT item_name, column_list(dynamic_cols) FROM assets;
Through DBForge Studio, the resultset for column_list(dynamic_cols) is shown as an image / icon when viewed in Grid mode while it displays `long" in Text mode.
However running the same query with HeidiSQL, I can see the actual comma separated result set for column_list(dynamic_cols).
Is there a result why DBForge Studio doesn't display the comma separated result set? is there a setting I have to change or click in order to view it?
I process data from a legacy system with SSIS before importing data into a SQL Server 2008 db.
A currency field is so formatted:
000000xxx.xx
I need to remove the leading zeros. Note that the actual currency value has not a fixed number of digit. So, for instance, it could be xxxxx.xx or x.xx or xxxxxxxxxxx.xx
I found this answer, but the derived column tool display only limited string functions, like the Access formula wizard.
So my question:
how may I use PATINDEX in the DTS derived column tool
otherwise, how may I remove leading zeros from input column
how are you querying the data? I suppose you are using direct table access on your OleDBSource component, right? I do not advise that because a tiny change on the table may break your package.
I would right a view containing the select from your source table and on this select I would use the PATINDEX function and inside the package, I would select the view instead of the table.
This is a good approach because if you need to do a minor change, you can change the view instead of the package
If you dont want to write a view, fine, instead of selecting "data access mode" = "table or view", select "sql command" and write your sql directly on the package.
Are you not able to cast the data into a numeric equivalent type in the source system? That should be a quick way to drop the leading zeros. SELECT CAST(myCurrency AS decimal(18,2)) AS leadingZerosDropped FROM myTable
Otherwise, the dead simple SSIS way to do it is to use a Data Conversion task and cast it to a numeric type (DT_CY/Currency or DT_Numeric/Numeric worked just fine)
Source query
SELECT '000000111.11' AS stringCurrency
UNION ALL SELECT '0.22'
UNION ALL SELECT '03.33'
UNION ALL SELECT '004.44'
UNION ALL SELECT '0005.55'
UNION ALL SELECT '00000000000000000006.66'
Data Conversion transformation
I created a new column, currencyCurrency which was the stringCurrency with a data type of currency [DT_CY] applied.
Results
stringCurrency currencyCurrency
000000111.11 111.11
0.22 0.22
03.33 3.33
004.44 4.44
0005.55 5.55
00000000000000000006.66 6.66
I fully support not using table access mode and in general I'm in favor of pushing work onto the source system but this seems like a low effort if the source system doesn't allow for conversion or if you have to resort to mucking about with strings.
I'm using MySQL Workbench CE 5.2.30 CE / Rev 6790 . When execute the following statement:
SELECT OLD_PASSWORD("test")
I only get back a nice BLOB icon, I need to left-click to select the cell, right-click and choose "Open Value in viewer" and select the "Text" tab.
Using the same with phpMyAdmin, I get directly back the value of the OLD_PASSWORD call. It's just an example, but is there a way to directly see such results in the output?
In short:
Go to Edit > Preferences
Choose SQL Editor
Under SQL Execution, check Treat BINARY/VARBINARY as nonbinary character string
Restart MySQL Workbench (you will not be prompted or informed of this requirement).
In MySQL Workbench 6.0+
Go to Edit > Preferences
Choose SQL Queries
Under Query Results, check Treat BINARY/VARBINARY as nonbinary character string
It's not mandatory to restart MySQL Workbench (you will not be prompted or informed of this requirement).*
With this setting you will be able to concatenate fields without getting blobs.
I think this applies to versions 5.2.22 and later and is the result of this MySQL bug.
Disclaimer: I don't know what the downside of this setting is - maybe when you are selecting BINARY/VARBINARY values you will see it as plain text which may be misleading and/or maybe it will hinder performance if they are large enough?
I'm not sure if this answers the question but if if you right click on the "blob" icon in the field (when viewing the table) there is an option to "Open Value in Editor". One of the tabs lets you view the blob. This is in ver. 5.2.34
Perform three steps:
Go to "WorkBench Preferences" --> Choose "SQL Editor" Under "Query Results": check "Treat BINARY/VARBINARY as nonbinary character string"
Restart MySQL WorkBench.
Now select SELECT SUBSTRING(<BLOB_COLUMN_NAME>,1,2500) FROM <Table_name>;
casting works, but it is a pain, so I would recommend using spioter's method unless you are using a lot of truly blob data.
SELECT CAST(OLD_PASSWORD("test") AS CHAR)
You can also cast as other types, and even restrict the size, but most of the time I just use CHAR:
http://dev.mysql.com/doc/refman/5.5/en/cast-functions.html#function_cast
select CONVERT((column_name) USING utf8) FROM table;
In my case, Workbench does not work. so i used the above solution to show blob data as text.
Doesn't seem to be possible I'm afraid, its listed as a bug in workbench:
http://bugs.mysql.com/bug.php?id=50692
It would be very useful though!
had the same problem, according to the MySQL documentation, you can select a Substring of a BLOB:
SELECT id, SUBSTRING(comment,1,2000) FROM t
HTH, glissi
I pieced a few of the other posts together, as the workbench 'preferences' fix did not work for me. (WB 6.3)
SELECT CAST(`column` AS CHAR(10000) CHARACTER SET utf8) FROM `table`;
Work bench 6.3
Follow High scoring answer then use UNCOMPRESS()
(In short:
1. Go to Edit > Preferences
2. Choose SQL Editor
3. Under SQL Execution, check Treat BINARY/VARBINARY as nonbinary character string
4. Restart MySQL Workbench (you will not be prompted or informed of this requirement).)
Then
SELECT SUBSTRING(UNCOMPRESS(<COLUMN_NAME>),1,2500) FROM <Table_name>;
or
SELECT CAST(UNCOMPRESS(<COLUMN_NAME>) AS CHAR) FROM <Table_name>;
If you just put UNCOMPRESS(<COLUMN_NAME>) you can right click blob and click "Open Value in Editor".
there is few things that you can do
SELECT GROUP_CONCAT(CAST(name AS CHAR))
FROM product
WHERE id IN (12345,12346,12347)
If you want to order by the query you can order by cast as well like below
SELECT GROUP_CONCAT(name ORDER BY name))
FROM product
WHERE id IN (12345,12346,12347)
as it says on this blog
http://www.kdecom.com/mysql-group-concat-blob-bug-solved/
NOTE: The previous answers here aren't particularly useful if the BLOB is an arbitrary sequence of bytes; e.g. BINARY(16) to store 128-bit GUID or md5 checksum.
In that case, there currently is no editor preference -- though I have submitted a feature request now -- see that request for more detailed explanation.
[Until/unless that feature request is implemented], the solution is HEX function in a query: SELECT HEX(mybinarycolumn) FROM mytable.
An alternative is to use phpMyAdmin instead of MySQL Workbench - there hex is shown by default.