I need to hash a column in a teradata table by hash_md5, I tried this
select hash_md5(COLUMN_NAME) from TABLE
but it seems not worked like this way. Could anyone suggest please?
You need to install MD5 UDF first than you can use it.
Please follow the instructions mentioned in below link
https://downloads.teradata.com/download/extensibility/md5-message-digest-udf?check_logged_in=1
use select SYSUDTLIB.hash_md5(COLUMN_NAME) from TABLE
Related
I'm using pgadmin right now and this is the table I created. I'm trying to convert this wkb_geometry column into lat,lon geometry point.
When I tried to select this column and declare it as a variable so I can perform some conversion on it, I failed to do so by using plain SQL code such as "DECLARE #xxx VarChar". I looked it up and did see that plain SQL code doesn't always work in Postgres but haven't found a solution yet. Could someone point me a way to do it? Thank you so much!!
I am new to databases and I was trying to set up PostreSQL and trying to query
tables in pgAdmin 4, but I always have to specify schema name as such:
SELECT * FROM infection_database.country
The database name is the same as the schema name. This is probably not good but I didn't know better.
I tried looking up some solutions and found and tried this, but it didn't fix the issue:
ALTER DATABASE infection_database SET search_path="infection_database";
Tried both with and without quotation marks if it matters. Where am I making a mistake?
Given solution works, but you need to restart the session for the changes to take effect.
Credit to #jjanes
I need to know how to visualize binary content in a postgresql table, whose column is of type bytea.
I found a possible solution to that problem, and it works well.
SELECT text(column_name) FROM table_name;
Do you know any other manner to accomplish this goal?
All rigth my friend, go ahead that is the solution.
The function text is used to decode bytea into string.
I want to clone a table in DB2 . My requirement is to create the new table using base table and In the new table I need same number of columns and I don't need the data of old table.please help me how to achieve this.
Thanks in Advance ,
Raj
In DB2, you can use this syntax:
CREATE TABLE new_table LIKE old_table
This will create a table of the same type as the original table. I doubt that indexes/keys are copied, too, though.
Here's some documentation on that topic
EXCHANGE DATA BETWEEN BaseTable AND NewTable;
We have a table someone created in DB2. I have no idea how they created it. But when I edit the table, It edits just fine. But after edit I can not query the table at all THE COLUMN CANNOT BE ADDED TO THE TABLE BECAUSE THE TABLE HAS AN EDIT PROCEDURE.
I looked ibm site and found this how to edit table using procedure
But I have no idea how to do this.
Is there anything that I can do to fix this with out following the procedure mentioned in second link?
I restarted server, but still no help. First I'm not able to figure out why I get the error in first place.
I'm using DB Visualizer and DB2 on linux.
This is sometimes default behavior of DB2. We need to run reorgchk command to fix these errors. More info below..
http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.db2.udb.admin.doc/doc/r0000888.htm
http://publib.boulder.ibm.com/infocenter/db2luw/v9/index.jsp?topic=/com.ibm.db2.udb.admin.doc/doc/c0023297.htm