Generate ER Diagram with Sql Queries ?

Hi Expertie,
I am new to Oracle Sql Developer Data Modeler.
I am having doubt in Oracle Sql Developer Data Modeler. Can we create ER Diagram with sql queries ?
Ex: select Ename, EAge, Eemail, ESalary, DDept, Dname, Estatus from Emp E join Dept D on E.EmpId = D.Empid
Where EAge in (20, 25, 30, 35)
Please provide me the answer and suggestion. It will be greatful for me.
Thanks & Regards
Bhaskar

Yes, you can engineer your physical model to a logical one, then you'll have an ERD as well. It's a right-click on the model I believe.
To be more specific, if you relational model is loaded, you can use the button in the toolbar that looks like a double-blue-arrow, or you can mouse-right-click on your relational model in the tree. This will engineer your model to a logical one. You'll then have your ERD.
Edited by: Jeff Smith SQLDev PM on Apr 29, 2013 9:53 AM

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Hi,
Can u repost?? as its very difficult to understand ur problem.
Vasu Natari.

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Hi,
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Well, your requirement is based on the the database schemas having been designed with proper primary key and foreign key constraints in place. If they're not there then the database doesn't know about the relationships between tables, and such relationships are just theoretical (and as such usually controlled by the application that uses them).
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I'm trying to determine which resources did not fill out a timesheet. The result of this query is missing just a few names and I can't find the reason. I'm thinking of a web meeting looking at real data is necessary and will be glad to pay
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MSP_EpmResource_UserView
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Hi there,
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As justin mentioned setting those NLS parameters will make oracle not to use your regular index. for that you must create a function based index. See example below.
SQL> create index t_idx on t (name)
2 /
Index created.
SQL> exec dbms_stats.gather_table_stats(user,'T',cascade=>true)
PL/SQL procedure successfully completed.
SQL> explain plan for
2 select * from t where name = 'karthick'
3 /
Explained.
SQL> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 2946670127
| Id | Operation        | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |       |     1 |     9 |     1   (0)| 00:00:01 |
|* 1 | INDEX RANGE SCAN| T_IDX |     1 |     9 |     1   (0)| 00:00:01 |
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
   1 - access("NAME"='karthick')
13 rows selected.
SQL> delete from plan_table
2 /
2 rows deleted.
SQL> alter session set NLS_COMP=ANSI;
Session altered.
SQL> alter session set NLS_SORT=BINARY_CI;
Session altered.
SQL> explain plan for
2 select * from t where name = 'karthick'
3 /
Explained.
SQL> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 1601196873
| Id | Operation         | Name | Rows | Bytes | Cost (%CPU)| Time     |
|   0 | SELECT STATEMENT |      |     1 |     9 |     5   (0)| 00:00:01 |
|* 1 | TABLE ACCESS FULL| T    |     1 |     9 |     5   (0)| 00:00:01 |
Predicate Information (identified by operation id):
PLAN_TABLE_OUTPUT
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2 /
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SQL> /
create index t_idx_1 on t(NLSSORT(name,'NLS_SORT=BINARY_CI'))
ERROR at line 1:
ORA-00955: name is already used by an existing object
SQL> delete from plan_table
2 /
2 rows deleted.
SQL> explain plan for
2 select * from t where name = 'karthick'
3 /
Explained.
SQL> select * from table(dbms_xplan.display)
2 /
PLAN_TABLE_OUTPUT
Plan hash value: 2580036035
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|   0 | SELECT STATEMENT            |         |     3 |    27 |     2   (0)| 00:00:01 |
|   1 | TABLE ACCESS BY INDEX ROWID| T       |     3 |    27 |     2   (0)| 00:00:01 |
|* 2 |   INDEX RANGE SCAN          | T_IDX_1 |     3 |       |     1   (0)| 00:00:01 |
Predicate Information (identified by operation id):
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Yes, you can engineer your physical model to a logical one, then you'll have an ERD as well. It's a right-click on the model I believe.
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How to crete CFL with SQL queries

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Hi,
Can u repost?? as its very difficult to understand ur problem.
Vasu Natari.

ASSERTION_FAILED when filling dropdownbykey with sql queries

Hi everybody,
I'm new to WDA, and I am coding a new interface for transaction CBIH82 in EHS.
I am filling a dropdownbykey with a sql query, for the work area.
On the view, the dropdownbykey is populated, but when I click on a button, or when I launch an action, I have the error "ASSERTION_FAILED".
However, if I fill the dropdownbykey manually in the code, I got no error.
Error in IE :
The ASSERT condition was violated
Method: IF_WDR_VIEW_ELEMENT_ADAPTER~SET_CONTENT of program /1WDA/LSTANDARD===============CP
Method: IF_WDR_VIEW_ELEMENT_ADAPTER~SET_CONTENT of program /1WDA/LSTANDARD===============CP
Method: IF_WDR_VIEW_ELEMENT_ADAPTER~SET_CONTENT of program /1WDA/LSTANDARD===============CP
Method: IF_WDR_VIEW_ELEMENT_ADAPTER~SET_CONTENT of program /1WDA/LSTANDARD===============CP
Method: IF_WDR_VIEW_ELEMENT_ADAPTER~SET_CONTENT of program /1WDA/LSTANDARD===============CP
Method: CONV_VIEW_INTO_VE_ADAPTER_TREE of program CL_WDR_INTERNAL_WINDOW_ADAPTERCP
Method: SET_CONTENT_BY_WINDOW of program CL_WDR_INTERNAL_WINDOW_ADAPTERCP
Method: RENDER_WINDOWS of program CL_WDR_CLIENT_SSR=============CP
Method: IF_WDR_RESPONSE_RENDERER~RENDER_VIEWS of program CL_WDR_CLIENT_SSR=============CP
Method: IF_WDR_RESPONSE_RENDERER~RENDER_USER_INTERFACE_UPDATES of program CL_WDR_CLIENT_SSR=============CP
Here is the dump :
27926     else.
27927       IFUR_NW5_COMBOBOX~READONLY = wd_DROPDOWN_BY_KEY->vl_READ_ONLY.
27928     endif.
27929 *   >> UCA STANDARD|ABSTR_DROPDOWN_BY_KEY|READONLY
27930     if M_PARENT_READONLY = abap_true or
27931        mv_KEY_ATTR_INFO-is_read_only = abap_true.
27932       IFUR_NW5_COMBOBOX~READONLY = abap_true.
27933     endif.
27934
27935 *   >> property-UCA IFUR_NW5_COMBOBOX~REQUIRED
27936 *   >> UCA STANDARD|DROPDOWN_BY_KEY|REQUIRED
27937     if mv_WD_STATE = cl_wd_dropdown_by_idx=>e_state-required.
27938       IFUR_NW5_COMBOBOX~REQUIRED = abap_true.
27939     else.
27940       IFUR_NW5_COMBOBOX~REQUIRED = abap_false.
27941     endif.
27942
27943 *   >> property-Property IFUR_NW5_COMBOBOX~USEDINSAPTABLE
27944     IFUR_NW5_COMBOBOX~USEDINSAPTABLE = /1WDA/VTABLE_CELL_EDITOR~mv_INSIDE_TABLE.
27945
27946 *   >> property-UCA mv_VALUE_SET
27947 *   >> UCA STANDARD|ABSTR_DROPDOWN_BY_KEY|VALUE_SET
27948     data value_set_item type WDR_CONTEXT_ATTR_VALUE.        "#EC NEEDED
27949     mv_VALUE_SET = mv_KEY_ATTR_INFO-value_set.
27950     read table mv_VALUE_SET into value_set_item
27951       with key value = mv_KEY_INTERNAL.
27952     if sy-subrc = 0.
27953       IFUR_NW5_COMBOBOX~VALUE = cl_http_utility=>escape_html( value_set_item-text ).
27954     else.
27955       " entry not found - only legal for "initial" value
>>>>>       assert mv_KEY_INTERNAL co ` 0`.                       "#EC NOTEXT
27957       IFUR_NW5_COMBOBOX~VALUE = ''.                         "#EC NOTEXT
27958     endif.
The error is at line 27956.
And here is my code to fill the dropdownbykey in my wddoinit of my view :
data:
    lieux_de_travail                    type string,
    description_lieux_travail           type string,
    table_record_number_travail         type TABLE OF string,
    table_lieux_travail_full            type TABLE OF string,
    lieux_travail_full                  type string,
    record_number_travail               type string,
    valeur_int                          type i VALUE 0,
    valeur_string                       type string.
SELECT RECNROOT FROM CCIHT_WAH INTO TABLE table_record_number_travail.
LOOP AT table_record_number_travail INTO record_number_travail.
SELECT WANAM FROM CCIHT_WALD INTO description_lieux_travail WHERE RECNROOT = record_number_travail.
ENDSELECT.
SELECT WAID FROM CCIHT_WAH INTO lieux_de_travail WHERE RECNROOT = record_number_travail.
ENDSELECT.
IF NOT lieux_de_travail = 'ALOUETTE'.
    CONCATENATE lieux_de_travail description_lieux_travail INTO lieux_travail_full SEPARATED BY ' - '.
ELSE.
    lieux_travail_full = lieux_de_travail.
ENDIF.
INSERT lieux_travail_full INTO TABLE table_lieux_travail_full.
ENDLOOP.
data:     NODE_INFO type ref to IF_WD_CONTEXT_NODE_INFO,
          NODE_INFO_ACLOC type ref to IF_WD_CONTEXT_NODE_INFO.
NODE_INFO = WD_CONTEXT->GET_NODE_INFO( ).
NODE_INFO_ACLOC = NODE_INFO->GET_CHILD_NODE( 'INFO_ACLOC' ).
data:    LT_VALUESET type WDR_CONTEXT_ATTR_VALUE_LIST,
         L_VALUE type WDR_CONTEXT_ATTR_VALUE.
valeur_int = 0.
LOOP AT table_lieux_travail_full INTO L_VALUE-TEXT.
ADD 1 TO valeur_int.
MOVE valeur_int to valeur_string.
L_VALUE-VALUE = valeur_string.
INSERT L_VALUE into table LT_VALUESET.
ENDLOOP.
CLEAR valeur_int.
NODE_INFO_ACLOC->SET_ATTRIBUTE_VALUE_SET(
     NAME = 'LIEUX'
     VALUE_SET = LT_VALUESET ).
The values are stored in the context node "INFO_ACLOC", and cardinality 1.1/0.1, in LIEUX of type String.
Anybody had this error before?
Thank you!
Brad

Hi Thomas,
thank you, that was it.
I had a conversion of int to string, and the resulting string was not good.
It looked like as a number in the debug mode, but not in the hexadecimal value.
I did not saw it, because I'm beginning to learn abap too.
Brad

Can I get metadata with SQL queries ??

Can I get relationships between tables in MS Access using SQL statements ??

Actually, you might be able to get what you need out of DatabaseMetaData class.
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JComboBox or JList with SQL queries. Best practises.

Hi!
I'm wondering what you do in the following situation, providing you develop a hotel reservation application and you have a form where you enter room details: room number, number of rooms, description and type (JComboBox).
So when executing an INSERT query what do you usually do? Do you store ID's of types or execute addtion SELECT query to get the if of the selected type?

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<code>
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I am learning to use Oracle9i XML DB to generate XML document using SQL queries. According to the document, there are multiple ways to do it (SQLX, DBMS_XMLGEN, SYS_XMLGEN, XSU). I am using SQLX to do it, but find it's so inefficient. Could someone point out what could be the problem?
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It seems that nested-loop join is used to evaluate the query, therefore it's very inefficient. I don't know whether there is a efficient way to do it.
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XMLATTRIBUTES ( o_orderkey AS "orderkey", o_custkey AS "custkey", o_orderstatus AS "orderstatus", o_totalprice AS "totalprice", o_orderdate AS "orderdate", o_orderpriority AS "orderpriority", o_clerk AS "clerk", o_shippriority AS "shippriority", o_comment AS "ps_comment"),
(SELECT XMLAGG(XMLELEMENT (
"lineitem",
XMLATTRIBUTES ( l_orderkey AS "orderkey", l_partkey AS "partkey", l_suppkey AS "suppkey", l_linenumber AS "linenumber", l_quantity AS "quantity", l_extendedprice AS "extendedprice", l_discount AS "discount", l_tax AS "tax", l_returnflag AS "returnflag", l_linestatus AS "linestatus", l_shipdate AS "shipdate", l_commitdate AS "commitdate", l_receiptdate AS "receiptdate", l_shipinstruct AS "shipinstruct", l_shipmode AS "shipmode", l_comment AS "comment")
FROM LINEITEM l
WHERE l.l_orderkey = o.o_orderkey
FROM ORDERS o
WHERE o.o_custkey = c.c_custkey
FROM CUSTOMER c
WHERE c.c_nationkey = n.n_nationkey
FROM NATION n
WHERE n.n_regionkey = r.r_regionkey
FROM REGION r;

Tim,
Oracle Reports was the orginal way to do this in an Oracle Apps environment. However, the XML Publisher team built a tool called data templates to do this as well. You can read several articles on how to use data templates on the XMLP blog. Here's the first arcticle in a series: http://blogs.oracle.com/xmlpublisher/2006/11/08#a127.
Bryan

SQL Queries, filter with multiple radio Buttons

I am trying to figure out how to filter my datagridview with SQL queries so that both of them have to be met for data to show up not just one.
My datagridview is bound to an Access Database.
I basically would want it filtered by 'Width' and 'Wood Type'
I have radio buttons in group boxes so a width and wood can be selected. However only one Query is applied at a time.

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Try
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Me.StickersTableAdapter.Width18(Me.TestDataSet.Stickers)
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System.Windows.Forms.MessageBox.Show(ex.Message)
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If RadioButton5.Checked = True Then
If TextBox1.Text = "" Then
Else
Me.StickersBindingSource.Filter = "Width LIKE '" & TextBox1.Text & "%'"
DataGridView1.Refresh()
End If
ElseIf RadioButton6.Checked = True Then
If TextBox1.Text = "" Then
Else
Me.StickersBindingSource.Filter = "[Wood Type] LIKE '" & TextBox1.Text & "%'"
DataGridView1.Refresh()
End If
ElseIf RadioButton5.Checked = False And RadioButton6.Checked = False Then
MsgBox("Please Select a Search Criteria")
End If
End Sub
Private Sub TextBox2_TextChanged(sender As Object, e As EventArgs) Handles TextBox2.TextChanged
Try
Me.StickersTableAdapter.SearchWood(Me.TestDataSet.Stickers)
Catch ex As System.Exception
System.Windows.Forms.MessageBox.Show(ex.Message)
End Try
End Sub
End Class

Sql queries - slow database

hi all,
is there a general but specific way to generate a list of sql queries that are consuming most resources and resulting in slow database performance?
thanks.

There are very few ways in this world that are "general but specific".
You can use "general" tools like StatsPack and AWR.
You can write "general" queries on V$SQL, V$SQLAREA, V$SQLSTATS.
You can use "specific" methods like Tracing.
You can use "specific" methods like Client side (or Application Server side) Logs.

Recursive Java programming method for executing recursive SQL queries

Anybody has a Java/JDBC example method to execute recursive SQL queries and print results? The method has to work for any number of queries and levels and the first query passes the parameter to the second query.
Edited by: user4316962 on Jun 12, 2011 1:59 PM

user4316962 wrote:
Guys, the problem what I am trying to solve is much more complex and I don’t think SQL level recursion is enough. I am looking for Java solution with SQL queries in it to make it more flexible and DB independent.
If you want to do recursion in SQL then it has nothing to do with Java.
And if you want to do recursion in Java then the idiom itself has nothing to do with SQL.
Other than that you have provided enough detail for anyone to even guess at what you are asking.
As a start I am not even sure that you understand what recursion is nor how JDBC works. (But it could be that you are using the terms to mean something else.)
And looking at your original post it could be nothing more than that you are looking for a design pattern - perhaps the interpreter.

Generate ER Diagram with Sql Queries ?

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