oracle-sqldeveloper

Is it possible to insert into a BLOB column in oracle using sqldeveloper? i.e. something like: insert into mytable(id, myblob) values (1,'some magic here'); Yes, it's possible, e.g. using the implicit conversion from RAW to BLOB: insert into blob_fun values(1, hextoraw('453d7a34')); 453d7a34 is a string of hexadecimal values, which is first explicitly converted to the RAW data type and then inserted into the BLOB column. The result is a BLOB value of 4 bytes. To insert a VARCHAR2 into a BLOB column you can rely on the function utl_raw.cast_to_raw as next: insert into mytable(id, myblob) values

I've installed SQL Developer on my system. No connections are being shown in my system yet. How do I create a new connection. Must I create a database first? If yes, then how do I create a new database. The SQL Query Editor window is not opening because there is no connection. All of this because there is no database. How do I create an empty database and then connect to it. Leniel Maccaferri This tutorial should help you: Getting Started with Oracle SQL Developer See the prerequisites: Install Oracle SQL Developer. You already have it. Install the Oracle Database. Download available here .

I created the table Test_Project2 in Oracle SQL Developer. After that I realized that the column proj_name is of a small size, so I decided to modify the column using the follwoing statement ALTER TABLE TEST_PROJECT2 MODIFY proj_name VARCHAR2(300); but for some reason Oracle SQL Developer underscores the semi-colon with red and I do not what is mistake and how to correct it Test_Project2 : CREATE TABLE Test_Project2 ( proj_id number(30), proj_name VARCHAR2 (30), proj_desc VARCHAR2(300) ); Regardless of what error Oracle SQL Developer may indicate in the syntax highlighting, actually running

Is there a way to display all the views currently set on an oracle database via sql developer? Thanks. for all views (you need dba privileges for this query) select view_name from dba_views for all accessible views (accessible by logged user) select view_name from all_views for views owned by logged user select view_name from user_views Open a new worksheet on the related instance (Alt-F10) and run the following query SELECT view_name, owner FROM sys.all_views ORDER BY owner, view_name SELECT * FROM DBA_OBJECTS WHERE OBJECT_TYPE = 'VIEW' You should definitely look at standard INFORMATION

I started off with SQL (access) IIf(Len([CAT]) < 3, Left([CAT],1) & 0 & Right([CAT],1), [CAT]) AS CAT1, [HD0] & IIf([TABLE].[HD1]<>"00", " / " & [HD1_ABR], Null) & IIf([HD2]<>"00", " / " & [HD2_NAME], Null) & IIf([HD3]<>"000", " / " & [HD3_NAME], Null) & IIf([HD4]<>"00", " / " & [HD4_NAME]) AS NAME, and did Oracle (Sql Developer) Case When length(cat) < 3 Then SubStr(cat,1,1) || '0' || SubStr(cat,-1,1) Else cat End cat1,hd0 Case When TABLE <>"00" then " / " else HD1_ABR,null When I run query in SQLDev I get error Error at Command Line:9 Column:4 Error report: SQL Error: ORA-00923: FROM keyword

EDIT: I think I'm close to solving this now. i will self-answer if so I've been stuck on this for a while now - I want to use the sample Oracle Human Resources database. I've been studying through these instructions to no avail. So I have downloaded both Oracle Database 11g Express Edition, along with SQL Developer. And I can play with it and create a sample database. But I don't know how to use the HR database. any tips appreciated. thanks Good news - I finally figured it out. I had to go into SQL Command Line, and then put in these commands( from this link ) : Type: connect Enter user-name: