How to empty foxpro db table? - database

How can i empty the whole foxpro db table using any trigger or stored procedure

The only way to empty a FoxPro table is first by getting exclusive access (ie no-one else has the file open and you can USE yourTable EXCLUSIVE): then you can use the ZAP command.

You can also
use table
Delete all
But they wont be fully deleted until a deleted until PACK is issued

Related

Unable to update a table using sql query in sql server

I use sql server 2014.
I have a table in my ManuDB database called (waqf).
I am trying to update the table
but not allowed and a message (invalid object name waqf) appears.
I don't know what is the reason although I have a table called waqf.
Because you are executing the statement in Master Database as shown in the snip shot.
select the correct database from drop down list shown in picture or execute the following statement.
USE ManuDB
GO
UPDATE ......
From the drop down list of database; set it to ManuDB.
At the moment, it's pointing to Master which doesn't have your table.
Type USE <yourdatabasename> before your update statement

Unable to carry out operations (create trigger, drop table) for a table I created

I am using a SQL Server database with SQL Server Management Studio where I have existing tables. I add a few tables to it and it works just fine. However, for subsequent operations such as
Drop table XXX --OR
Create Trigger YYY on XXX
I run into a error statement that reads:
i) Cannot drop table XXX as it does not exist or you do not have permissions
ii) The object 'XXX' does not exist or is invalid for this operation
I tried to carry out an Insert operation but that showed me a similar error (The object 'XXX' does not exist). I can see this maybe a permissions issue since I am using an existing database. However, in that case, I should have been unable to create a table as well?
Can anyone pinpoint how I can work myself around this and what the problem is?
What is your default schema?
SELECT name, default_schema_name
FROM sys.database_principals
WHERE type = 'S';
Try qualifying your references to the table as SchemaName.XXX and see if that helps.
Most of times when I had similar situations tables were created in system databases (master, tempdb..). Of course it was my mistake.
So maybe try to search for a tables in other databases?

How to merge table from access to SQL Express?

I have one table named "Staff" in access and also have this table(same name) in SQL 2008.
Both table have thousands of records. I want to merge records from the access table to sql table without affecting the existing records in sql. Normally, I just export using OCBC driver and that works fine if that table doesn't exist in sql server. Please advise. Thanks.
A simple append query from the local access table to the linked sql server table should work just fine in this case.
So, just drop in the first (from) table into the query builder. Then change the query type to append, and you are prompted for the append table name.
From that point on, just drop in the columns you want (do not drop in the PK column, as they need not be used nor transferred in this case).
You can also type in the sql directly in the query builder. Either way, you will wind up with something like:
INSERT INTO dbo_custsql
( ADMINID, Amount, Notes, Status )
SELECT ADMINID, Amount, Notes, Status
FROM custsql1;
This may help: http://www.red-gate.com/products/sql-development/sql-compare/
Or you could write a simple program to read from each data set and do the comparison, adding, updating, and deleting, etc.

View temporary table`s data when debugging an MS SQL Function

I'm currently debugging an Ms SQL Function (SQL 2008).
In this function, I have a variable declared this way:
DECLARE #TempTable TABLE ( Id INT UNIQUE );
Then, I insert some records using an insert into...select statement.
When debugging, I would like to see the records in this table.
Is there a way to do this?
Thanks
I built a procedure which will display the content of a temp table from another database connection. (which is not possible with normal queries).
Note that it uses DBCC PAGE & the default trace to access the data so only use it for debugging purposes.
You can use it by putting a breakpoint in your code, opening a second connection and calling:
exec sp_select 'tempdb..#mytable'
One possible solution, that may not be the best, is to:
Create a permanent table that is the same as the temporary table
Modify the function so that it dumps the data from the temporary table into the permanent table at the point where the temp table contains the data you're interested in seeing
When the function ends, open up the new permanent table and you'll have a copy of the temporary table's state.
This requires that you have permission to create new tables and modify the function.

Cannot find the object because it does not exist or you do not have permissions. Error in SQL Server

I have a database and have a Sql script to add some fields to a table called "Products" in the database.
But when i am executing this script, I am getting the following error:
Cannot find the object "Products" because it does not exist or you do not have permissions
Why is the error occurring and what should I do to resolve it?
I found a reason why this would happen. The user had the appropriate permissions, but the stored procedure included a TRUNCATE statement:
TRUNCATE TableName
Since TRUNCATE deletes items without logging, you (apparently) need elevated permissions to execute a stored procedure that contains it. We changed the statement to:
DELETE FROM TableName
...and the error went away!
Are you sure that you are executing the script against the correct database? In SQL Server Management studio you can change the database you are running the query against in a drop-down box on one of the toolbars, or you can start your query with this:
USE SomeDatabase
It can also happen due to a typo in referencing a table such as [dbo.Product] instead of [dbo].[Product].
Does the user you're executing this script under even see that table??
select top 1 * from products
Do you get any output for this??
If yes: does this user have the permission to modify the table, i.e. execute DDL scripts like ALTER TABLE etc.? Typically, regular users don't have this elevated permissions.
Look for any DDL operation in the script.
Maybe the user does not have access rights to run changes.
In my case it was SET IDENTITY_INSERT tblTableName ON
You can either add db_ddladmin for the whole database or for just the table to solve this issue (or change the script)
-- give the non-ddladmin user INSERT/SELECT as well as ALTER:
GRANT ALTER, INSERT, SELECT ON dbo.tblTableName TO user_name;
It could also be possible that you have created the "Products" in your login schema and you were trying to execute the same in a different schema (probably dbo)
Steps to resolve this issue
1)open the management studio
2) Locate the object in the explorer and identify the schema under which your object is? ( it is the text before your object name ). In the image below its the "dbo" and my object name is action status
if you see it like "yourcompanydoamin\yourloginid" then you should
you can modify the permission on that specific schema and not any other schema.
you may refer to "Ownership and User-Schema Separation in SQL Server"
I've been trying to copy a table from PROD to DEV but get an error:
"Cannot find the object X because it does not exist or you do not have permissions."
However, the table did exist, and I was running as sa so I did have permissions.
The problem was actually with CONTRAINTS. I'd renamed the table on DEV to be old_XXX months ago. But when I tried to copy the original one over from PROD, the Defaut Constraint names clashed.
The error message was misleading
You can right click the procedure, choose properties and see which permissions are granted to your login ID. You can then manually check off the "Execute" and alter permission for the proc.
Or to script this it would be:
GRANT EXECUTE ON OBJECT::dbo.[PROCNAME]
TO [ServerInstance\user];
GRANT ALTER ON OBJECT::dbo.[PROCNAME]
TO [ServerInstance\user];
This could be a permission issue. The user needs at least ALTER permission to truncate a table.
Another option is to call DELETE FROM instead of TRUNCATE TABLE, but this operation is slower because it writes to the Log file, whereas TRUNCATE does not write to the log file.
The minimum permission required is ALTER on table_name. TRUNCATE TABLE
permissions default to the table owner, members of the sysadmin fixed
server role, and the db_owner and db_ddladmin fixed database roles,
and are not transferable. However, you can incorporate the TRUNCATE
TABLE statement within a module, such as a stored procedure, and grant
appropriate permissions to the module using the EXECUTE AS clause.
Sharing my case, hope that will help.
In my situation inside MY_PROJ.Database->MY_PROJ.Database.sqlproj I had to put this:
<Build Include="dbo\Tables\MyTableGeneratingScript.sql" />
In my case I was running under a different user than the one I was expecting.
My code passed 'DRIVER={SQL Server};SERVER=...;DATABASE=...;Trusted_Connection=false;User Id=XXX;Password=YYY' as the connection string to pypyodbc.connect(), but it ended up connecting with the credentials of the Windows user that ran the script instead of the User Id= from the connection string.
(I verified this using the SQL Server Profiler and by putting an invalid uid/password combination in the connection string - which didn't result in an expected error).
I decided not to dig into this further, since switching to this better way of connecting fixed the issue:
conn = pypyodbc.connect(driver='{SQL Server}', server='servername',
database='dbname', uid='userName', pwd='Password')
In my case the sql server version on my localhost is higher than that on the production server and hence some new variables were added to the generated script from the localhost. This caused errors in creating the table in the first place.
Since the creation of the table failed, subsequent query on the "NON EXISITING" table also failed.
Luckily, in among the long list of the sql errors, I found this "OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF" to be the new varialbe in the script causing my issue. I did a search and replace and the error went away.
Hope it helps someone.
The TRUNCATE statement was my first problem, glad to find the solution here. But I was using SSIS and trying to load data from another database, and it failed with the same error on any table that used IDENTITY to create an auto-incrementing ID. If I was scripting it myself I'd first need to use the command SET IDENTITY_INSERT tablename ON, and then SET IDENTITY_INSERT tablename OFF when the table update was done. But this requires ALTER permissions on the table, which I do not have. Hence the error message in SSIS on the table load (even though the previous step had just deleted all the data out of the table.)
You receive this error, when you use an ORM like GORM (https://gorm.io/) in Go for example.
When you try to create a struct and accidentally pass the ID (primary key) although it's inserted automatically.
Rich features IDE like Visual Studio Code make this mistake happen easily:
if tx := db.Create(&myStruct{
Ts: Time.Now(),
ID: 42,
}); tx.Error != nil {
t.Fatal(tx.Error)
}
You can still use auto-filling by Visual Studio Code, but delete your entry for your model's primary keys:
if tx := db.Create(&myStruct{
Ts: Time.Now(),
}); tx.Error != nil {
t.Fatal(tx.Error)
}

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