Database

Re: Schema update using SQL Server Data Tools

19-Oct-15 12:15

Hi All,

I have two different databases on two different servers I compared the source database with destination database, there are few things like a Foreign key doesn't exist in the target database, a couple of columns are missing. Now after finding it, I want to update the schema from Source database to Destination database without losing the data on the target database.

When I ran it, it is giving me error and saying Target database may loose data, can anybody please help me or point me, how can I achieve this?

Any suggestion, link or code snippet can be very helpful. Thanks in advance.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

Mycroft Holmes19-Oct-15 14:35

Re: Schema update using SQL Server Data Tools

19-Oct-15 14:35

If you are changing column formats or shortening the length of a field you will often get this message. You need to asses whether the changes are actually going to impact your database eg shortening a varchar from 1000 to 500 is not relevant if the longest string is only 100 in length.

Whereas changing a data format from decimal to int may make a critical difference!

Never underestimate the power of human stupidity
RAH

indian14319-Oct-15 15:54

Referencing DacPac file from different Server and Database

19-Oct-15 15:54

No I am just adding a Foreign key constraint still it errors it out, because in the new database we have added Foreign Key constraint that we want to sync it to the old database without losing the data.
Another place it is erroring out is at a View which is referencing tables from other databases and other servers as well.

Any idea how to resolve these things?

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

indian14319-Oct-15 10:34

Re: Referencing DacPac file from different Server and Database

19-Oct-15 10:34

Hi All,

I have a DacPac file that is generated on a server, in which Views are using different Server references and I want to reference it in my Database project as a Database reference.

When I do it, it is throwing following error, can anybody please help me in it, any sort of help, a suggestion, a link or a code snippet would be very helpful.

I am generating the DacPac file from Management Studio and trying to reference it in the SSDT project, lets suppose if it is only because of the version mismatch between SSDT and Management Studio, how can we avoid this mismatch, I am using SQL Server 2008 R2, Visual Studio 2013 and SSDT 12.0, doesn any of these version matter. Any sort of help is greatly appreciated.
And another important thing is my database View are referencing other database, when I went on to that database, the views in that db are referencing another database and when I went into that database the views in that are referencing an another db, like this it goes on, if referencing other dbs is the cause of error, then what can we do to resolve it in those situations. Thank you.

The error is as below:

'C:\Users\AleemA\Desktop\SHP.dacpac' is not accessible or is not a valid schema (.dacpac) file.

Thanks in advance.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

modified 19-Oct-15 19:33pm.

Mycroft Holmes19-Oct-15 14:30

Limiting the scope of a Table variable

19-Oct-15 14:30

A quick search and a little light reading and I get this information from http://sqlblog.com/blogs/jamie_thomson/archive/2014/01/18/dacpac-braindump.aspx[^]
Dacpacs are used for deploying SQL Server objects to an instance of SQL Server

It seems you are trying to reference it like a database rather than installing it to the server.

Never underestimate the power of human stupidity
RAH

indian14317-Oct-15 6:35

Re: Limiting the scope of a Table variable

17-Oct-15 6:35

Hi All,

I few SQL scripts and in them I am using Table variables to store values from select queries then loop through that table variable to avoid duplicate entries in the tables.

Like

Declare @TabA  Table(Id identity, Name varchar, Description varchar)
Insert into @TabA SELECT Name, Description FROM XXXX

Loop through Table Variable using Id and check if that Name already doesn't exist in the TabB then insert else don't.

Now I have interesting question, I am using many inserts in different blocks within same sql script. When I try to declare same Table Variable name again @TabA, it says, it already exists. I don't want to use Drop statement in my script,
1. is there any way that I can make the table variable drop automatically within same script, otherwise do I need to declare different table variable for each insert, if that's the case then wouldn't it be more stress on the RAM as many table variables would exist in the RAM until that whole script runs?
2. I am afraid to use delete on the same Table variable to use it in next insert, For example, if I have to insert into TablC table which has same set of Columns Name and Description, how does Delete works on the table variable would it create Ids from where it left in the before insert or would it create Ids from 1st again?
3 And another question is, if we are running multiple sql files at the same time, do we need to use different table variable names in all of those sql files or the scope of the Table Variable dies soon after each sql file runs?

Please answer these questions any suggestions, links and even code snippets would help me a lot, thanks in advance.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

Mycroft Holmes17-Oct-15 13:40

Re: Limiting the scope of a Table variable

17-Oct-15 13:40

Use a different name for each table variable or delete the content and reuse the existing variable
Why are you scared to use Delete!
Table variables are limited in scope to the current procedure.

Performance is unlikely to be an issue unless you are processing serious volumes.

Never underestimate the power of human stupidity
RAH

indian14319-Oct-15 10:28

Move GROUP_CONCAT's comma values to columns

19-Oct-15 10:28

Perfect, thank you very much Holmes.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

Jassim Rahma15-Oct-15 6:45

Re: Move GROUP_CONCAT's comma values to columns

15-Oct-15 6:45

Hi,

I am using below code to display times as Pivot table grouped by date, this is basically for fingerprint attendance... I am getting what I want like this:

2012-06-03 10:23:30,10:23:32,10:24:05,10:24:07,10:24:24,10:24:26

How can I make the comma separated values displayed in columns instead of comma so it will be something like this

created_date - time1 - time2 - time3 - time4 --- etc

this is the code:

SQL

SELECT created_date, GROUP_CONCAT(created_time) 
FROM fingerprint
GROUP BY created_date

Technology News @ www.JassimRahma.com

modified 15-Oct-15 12:52pm.

Jassim Rahma15-Oct-15 8:02

Re: Move GROUP_CONCAT's comma values to columns

15-Oct-15 8:02

Ok, Please HELLLLLP Confused | :confused:

I have this table with 16 rows only:

http://www.jassimrahma.com/temp/attendence_table.png[^]

and I am using below code now to split the time of attendance into columns and getting this result:

http://www.jassimrahma.com/temp/attendence_result.png[^]

but I am not happoy with it! for example, 7th July, there is only one fingerprint so it should be only F1 but it's repeating it in F1, F3 and F4.

SQL

SELECT DATE(attendance_date_time) AS attendance_date, SUBSTRING_INDEX(SUBSTRING_INDEX(GROUP_CONCAT(TIME(attendance_date_time)), ',', 1), ',', -1) AS F1,
IF(LENGTH(GROUP_CONCAT(TIME(attendance_date_time))) - LENGTH(REPLACE(GROUP_CONCAT(TIME(attendance_date_time)), ',', '')) > 1,
SUBSTRING_INDEX(SUBSTRING_INDEX(GROUP_CONCAT(TIME(attendance_date_time)), ',', 2), ',', -1) ,NULL) AS F2,
SUBSTRING_INDEX(SUBSTRING_INDEX(GROUP_CONCAT(TIME(attendance_date_time)), ',', 3), ',', -1) AS F3,
SUBSTRING_INDEX(SUBSTRING_INDEX(GROUP_CONCAT(TIME(attendance_date_time)), ',', 4), ',', -1) AS F4
FROM employee_attendance
GROUP BY DATE(attendance_date_time);

How can I fix this please?

Thanks,
Jassim[^]

Technology News @ www.JassimRahma.com

Jassim Rahma24-Oct-15 1:28

Filling many to many rel table using Select statement

24-Oct-15 1:28

anybody can help please?

Technology News @ www.JassimRahma.com

indian14314-Oct-15 7:18

Re: Filling many to many rel table using Select statement

14-Oct-15 7:18

Hi All,

I have Table A, TabB and TableC, I need to fill TableC by using Select statement and join on TableB and TableA two times. Because TableC is a many to many relationship table on TableA and TableB.

TableA(Id, Name, Desc)
TableB(Id, TableAId, AnotherTableAId, TableAName, AnotherTableAName)
TableC(Id, TableAId, AnotherTableAId, TableAName, AnotherTableAName)

Now the problem is TableA fills the new Data and TableC should be synced to TableB but should have new Ids from TableA and same TableAName, AnotherTableAName values from Old TableB rows. If I run as below, the rows aren't coming correctly, some times more rows than in TableB or some time less rows than in TableB.

Here is how I tried but failed, any suggestion or link or even code snippet would help a lot.

Insert into TableC (TableAId, AnotherTableAId, TableAName, AnotherTableAName)
SELECT TableAId, AnotherTableAId, TableAName, AnotherTableAName FROM TableB b
INNER JOIN TableA a ON a.Name = b. TableAName
INNER JOIN TableA a2 ON a2.Name = b. AnotherTableAName

Please help me with this, thanks in advance.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

Mycroft Holmes14-Oct-15 12:50

Re: Filling many to many rel table using Select statement

14-Oct-15 12:50

Look into UNION. Split your query into 2 by removing the second join.

SQL

Insert into TableC (TableAId, AnotherTableAId, TableAName, AnotherTableAName)
SELECT TableAId, AnotherTableAId, TableAName, AnotherTableAName FROM TableB b
INNER JOIN TableA a2 ON a2.Name = b. AnotherTableAName
UNION
Insert into TableC (TableAId, AnotherTableAId, TableAName, AnotherTableAName)
SELECT TableAId, AnotherTableAId, TableAName, AnotherTableAName FROM TableB b
INNER JOIN TableA a ON a.Name = b. TableAName

Never underestimate the power of human stupidity
RAH

KDGOLE14-Oct-15 21:27

KDGOLE

14-Oct-15 21:27

SQL

--Insert into #TableC (TableAId, AnotherTableAId, TableAName, AnotherTableAName)
SELECT TableAId, AnotherTableAId, TableAName, AnotherTableAName FROM #TableB b
INNER JOIN #TableA a ON a.Name = b.TableAName  OR a.Name = b.AnotherTableAName

KDGole

Re: Filling many to many rel table using Select statement

indian14317-Oct-15 6:17

Re: Filling many to many rel table using Select statement

17-Oct-15 6:17

I did all of that, thanks for your help and what I felt was to use the Table variable and insert values into it, and then loop through table variable to check if that record combination doesn't exist in the table then insert the set.

I like your approach too.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

indian14319-Oct-15 10:30

Get check time from separate fields in Microsoft SQL Server

19-Oct-15 10:30

I got it Kuldeep, thanks for your support, it is possible by using Merge and Table Variables.

Thanks,

Abdul Aleem

"There is already enough hatred in the world lets spread love, compassion and affection."

Jassim Rahma14-Oct-15 0:11