How to check if database/table exists in MYSQL
I am writing a program which accesses databases in MYSQL, is there any way to check if the databases exists on the MYSQL server and if not create one && to check if a table exists and create one of if it does not
OK, found out that as special permissions needed to create databases I assume it cannot be done via my app but how about Tables
Similar Messages
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How to check if internal table exists in dynamical called subroutine ?
Hi,
in a dynamically called subroutine i'm using a internal table, but in some calls this table is not exist.
How can i check in the code whether the internal table exist or not ?
regards,
HansIn Horst Keller's blog /people/horst.keller/blog/2005/05/27/abap-geek-10--everything-functions-150-but-how my issue is talked about :
All other parameters are handled in a way as they were declared as global data objects in the top include of the function group, that can be used only during the execution of the function module: They are visible throughout the function group but you can access them only while the function module is active. If you access such a parameter and the respective function module is not executed, you get the runtime error GETWA_NOT_ASSIGNED (Why? Well, technically thos guys are represented via field symbols which are valid only during the runtime of the function module).
The code is in SD pricing. Sometimes the code is called from function module PRICING_BUILD_XKOMV or PRICING_SUBSCREEN_PBO where TKOMV is defined as globalized parameter.
And sometimes it is called from function module PRCING_CHECK where TKOMV is NOT defined as parameter.
In the call of last function the dump occures on the ASSIGN statement :
data: ls_tkomv like line of tkomv,
lv_tablename(30) type c value 'TKOMV[]'.
field-symbols: <lfs> type any table.
assign (lv_tablename) to <lfs>.
if <lfs> is assigned.
Any suggestions to solve the issue ?
regards,
Hans -
How to check whether a table exists in database
test9997 is table already made in database with 3 columns :1st-varchar,2nd-number,3rd-number
declare
var1 varchar2(20);
var2 number(20);
var3 number(20);
begin
plvar1 :='this is again pl/sql';
plvar2 := 12;
plvar3 := 13;
IF (???? condition for existence of table say test1111??????) then
create table test1111(
var1 varchar2(20);
var2 number(20);
var3 number(20);
insert into test1111(plvar1,plvar2,plvar3);
else
insert into test1111(plvar1,plvar2,plvar3);;
end if;
end;
in the above code i want to check existence of a table and insertion or updation will be based on it after creation if it doesnt exist.
how to do it
please help asapYou're in the wrong forum (this one is for issues with the SQL Developer tool). You'll get more answers in the SQL And PL/SQL forum.
Have fun,
K. -
How to check if the table exists in teh database
Hi,
I am using MS Acess and how do i check using the query if the table already exist in the db?
What is the exact query. Can any one help me.
Thanks
DeeptiThis will do it for you and print out the results using JDOM. - %
package database;
import org.jdom.Document;
import org.jdom.Element;
import org.jdom.output.XMLOutputter;
import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
public class TableLister
public static final String DRIVER = "sun.jdbc.odbc.JdbcOdbcDriver";
public static final String DATABASE = "jdbc:odbc:DRIVER={Microsoft Access Driver (*.mdb)};DBQ=C:\\Documents and Settings\\Michael\\My Documents\\Projects\\Java\\Forum\\data\\DataConnection.mdb";
public static final String USERNAME = "admin";
public static final String PASSWORD = "";
public static void main(String[] args)
Connection conn = null;
ResultSet tables = null;
String driver = "";
try
driver = ((args.length > 0) ? args[0] : DRIVER);
String url = ((args.length > 1) ? args[1] : DATABASE);
String username = ((args.length > 2) ? args[2] : USERNAME);
String password = ((args.length > 3) ? args[3] : PASSWORD);
Class.forName(driver);
conn = DriverManager.getConnection(url, username, password);
DatabaseMetaData meta = conn.getMetaData();
// Bring back ALL tables and views, including SYSTEM tables.
tables = meta.getTables(null, null, null, null);
ResultSetMetaData rsmd = tables.getMetaData();
int numColumns = rsmd.getColumnCount();
List columnNames = new ArrayList();
for (int j = 0; j < numColumns; ++j)
columnNames.add(rsmd.getColumnName(j + 1));
Element root = new Element("tables");
int tableCount = 0;
while (tables.next())
Element table = new Element("table");
table.setAttribute("id", Integer.toString(++tableCount));
for (int j = 0; j < numColumns; ++j)
Element column = new Element((String) columnNames.get(j));
column.setText(tables.getString((String) columnNames.get(j)));
table.addContent(column);
root.addContent(table);
conn.close();
Document doc = new Document(root);
XMLOutputter outputter = new XMLOutputter(" ", true);
System.out.println(outputter.outputString(doc));
catch (ClassNotFoundException e)
System.err.println("Couldn't load JDBC driver class " + driver);
e.printStackTrace();
catch (SQLException e)
System.err.println("SQL state: " + e.getSQLState());
System.err.println("SQL error: " + e.getErrorCode());
e.printStackTrace();
catch (Exception e)
e.printStackTrace();
finally
close(tables);
close(conn);
public static void close(Connection c)
try
if (c != null)
c.close();
catch (SQLException e)
e.printStackTrace();
public static void close(Statement stmt)
try
if (stmt != null)
stmt.close();
catch (SQLException e)
e.printStackTrace();
public static void close(ResultSet result)
try
if (result != null)
result.close();
catch (SQLException e)
e.printStackTrace();
} -
How can I check whether or not an database table exists?
Hi,
I am new to ABAP programming. And now I want to write an function that check whether an table exists in the dictionary.
It request the table name was given by the user input. So I have to check it dynamically.
Please give me some guide if you know about that.
Thanks.Hi,
All the table names exist in DD02l table.
Fetch data from DD02l table by passing selectin screen parameter .
REPORT ysdn_new .
PARAMETERS: p_tab LIKE dd02l-tabname.
DATA: v_tab LIKE p_tab.
SELECT SINGLE tabname INTO v_tab FROM dd02l WHERE tabname = p_tab.
WRITE v_tab.
If ypu want to fetch from TADIR table only means you have to pass selection screen parameter in place of obj_name and TABL for OBJECT field.
SELECT SINGLE tabname INTO v_tab
FROM TADIR
WHERE obj_name = p_tab
AND object = 'TABL'.
This is other way of getting table name by passing selection screen parameter
this will work.
Please reward points if helpful...
Regds
Sivaparvathi -
How do I check if a table exists
I have some embedded SQL statements to create tables and indexes
in a database. These tables may or may not already be there. I
would like to be able to drop the table(s) first, then create
them. Unfortunately, an error is generated if I drop a table
that does not exist.
Can someone send me the proper SQL command to check if a table
exists before dropping it in Oracle?
TIA
Eric
nullI have some embedded SQL statements to create tables and indexes
in a database. These tables may or may not already be there. I
would like to be able to drop the table(s) first, then create
them. Unfortunately, an error is generated if I drop a table
that does not exist.
Can someone send me the proper SQL command to check if a table
exists before dropping it in Oracle?
TIA
Eric
null -
How to check whether any table(s) required to shrink on database
Hi,
How to check whether any table(s) required to shrink on database
Regards,
VenkatVenkat wrote:
Hi,
Thi is Oracle 10g. How to use this?. I am not using toad etc...
I am on SQL prompt.
Regards,
Venkat.
for starter
Generate Script to Shrink Segment Advisor Recommendations [ID 1171054.1]
Automatic Segment Advisor in Oracle 10g Release 2 (10.2) [ID 314112.1]
10g and above SEGMENT ADVISOR [ID 242736.1]
Cheers -
Please help me how to check a material does existed group code in system (w
Hi all,
Please help me...
I have inputted quantity for tx MC 94 but when I input them into tx MC94, I met a message " Structure not yet maintained for this conbination characterstics". Step by step to show a error message as below:
Step 1: Launch MC 94
step 2: Enter Planning
Step 3: Enter Prod.Code. Material (ex: enter material code :0101010260008, this code is existed Prod.Code )
Step 4: Click on "Inactive Version " button
==> A error message is showed.
Please help me how to check a material does existed group code in system (which table to check it)?
How to record the message" Structure not yet maintained for this conbination characterstics" to catch up it in my program?
Thank in advance.Karenloria,
1. Check in MC8C, which Infostructure is used for Planning type "Planning" or the one you are entering in the intial screen of MC94.
2. Using transaction MC63 for the infostructure identified in step 1, check the planning hierarchy maintained. If this product is not maintined maintain using MC62.
You can also check using SE16 transction the current infostructe records(Plan) for the table name = infostructure identified in step 1.
Regards,
Prasobh -
In ecatt - how to check at database level using ABAP
Hi,
How to check at database level using ABAP in Ecatt tool.
say,for example I want to check a particular sales order is invoiced or not ,at the database level and if it is invoiced I have stop proceeding to invoicing of that sales order number.
Could anybody suggest on this with an example?
thanks.Hi,
you can use the command GETTAB to access single db records.
Full specified or partitial specified keys can be use at GETTAB. It will return always only one record, also if a couple could match your selection.
For more advanced scenarios you can also use eCATTs Inline ABAP. In a block between the commands ABAP. ENDABAP. you can code ABAP statements, e.g. SELECT ... INTO TABLE ...
eCATT script parameters of type 'V' defined in that script using ABAP/ENDABAP will be transfered into the ABAP block and back to script after ABAP perform.
Best regards
Jens -
JavaScript: How to check if a file exists.
Hello Everybody,
Can you tell me how to check if a file exists using JavaScript and Internet Explorer.
Browsing on this website I could read about the command "f.exists()" and it was necessary to include "java.io.*".
Should I use this same command and should I include the same files? Or are there other files and other commands?
Thanks in advance.sorry ya. there is no command to check whether a file exists using javascript. The following code says the object name and value. But it can't say whether the file exists in the harddisk or .. Javascript cannot access database and system resources. If the file exists or not can be checked through the application (ASP, CFML, ..) you are using.
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How to update two database tables as the same Usernamethats logged in?
I have created 2 separate database tables in PHP/MySQL that I want to store user information in. The first user table I made the fields: id, username, password. The second table I made the fields: id, firstname, lastname, address, phone.
I want to make an update record page that is restricted by username and password that will update both table1 and table 2 from my MySQL database.
I have created a registration page, a login page and a restricted page for when the user signs in. On the restricted page I want to update the users information.
I have tried a few things and I can get the table that has the username field to update, I just can't get the second table to update with the first table.Hmm.
Not sure where your going with the <select> menu.
The description you made:
"Both have an id column, which is presumably the record's primary key, but you need to create a relationship by storing the primary key of one table as a foreign key in the child (related) table. For example, you should insert the primary key of the first table in the second table as user_id. That enables you to identify which username and password are related to an individual listed in the second table"
Seems to be the direction that I'm looking for.
Now my question is how do I insert the primary key of the first table in the second table as user_id?
>
>"For example, you should insert the primary key of the first table in the second table as user_id"
Since both tables have an id column and they both are the primary key, do I just change the name of the second tables id column to "user_id" then?
Or is there an actual "insert the primary key to another table" function that I don't know about? -
How to link Azure database tables and fields to VS2012 C++ entry form
We are using Visual Studio 2012 C++ and have successfully connected to the database on Azure, but do no know how to associate the database tables and fields with the C++ application data entry forms. Can anyone help? Thanks
Hello Roxanne,
You could use Entity framework to map classes to Azure tables. Please refer http://www.codeproject.com/Articles/363040/An-Introduction-to-Entity-Framework-for-Absolute-B to
learn more. Hope this helps.
Regards,
Kumar Bijayanta -
No database table exists for table
HI All,
We created a Ztable and used in two of reports these reports woking fine in PRD,few days back we assigned authorization group and functional group to these table now this table throwing eeror in QAS as well as PRD like No database table exists for table ZXXX,client dont want the data in this table so we deleted this table and created with same name to QAS still same error we are unbale to findout the problem.pls any on help me out..Hi Srinivas,
I am also facing similar kind of issue, can you please let me know your approach towards resolving the issue without deleting the existing data from the table.
Thanks in advance.
Best Regards,
Anil Neegineni -
How to find the database table behind the xtags varibles?
if in xtags we find that some varibles are not having the right data coming from xml -> database tables so how can we find out the names of database table behind it .
<!-- <xtags:variable id="msds" context="<%=specs%>" select="//header/msds"/>
<a href="/MSDS/<%=msds%> target="#">MSDS</a>
-->
now how to find the database table and the column name of database table from which the value of id msds is coming
Here they have stored the name of pdf file . from this code pdf file is displayedHi,
Thanks for your response. It is PM related. When I run a T Code - IK18, the field Total Counter Reading field appears. I am looking for that particular fields actual table name and field name. I think I have found it in IMGR table. Now I want to get IMRG-READG in my report, but there is no common fields in neither MKPF or MSEG table. So what can I do to connect IMRG table with either of them ? -
How to Query a database table of a remote system in a program.
How to Query a database table of a remote system in a program.
Thanks in adv.
-Satish1.Create an RFC(SE37) in Source (To Where you want to get data)
IMPORTING MATNR
EXPORTING : SYS TYPE SY-SYID
I_MARA TYPE MARA
SELECT SINGLE * FROM MARA INTO I_MARA WHERE MATNR EQ MATNR
2.Copy the same RFC to Target(From Where you want to get data)
3.Create a RFC destination(SM59.) in Source
Enter the connection type as 3 and enter the target host and system number ( may be 00)
4.Create a program to calling RFC in Source.
PARAMETERS: p_matnr LIKE mara-matnr.
PARAMETERS: p_dest LIKE rfcdes-rfcdest DEFAULT 'NONE'.
DATA: system LIKE sy-sysid.
DATA :i_mara TYPE mara.
CALL FUNCTION 'XX_RFC_GET_TEST' DESTINATION p_dest
EXPORTING
matnr = p_matnr
IMPORTING
sys = system
i_mara = i_mara
:-Gopeekrishnan
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