Questions tagged [debugging]

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how to install debugger

how to install debugger postgresql 9.5 on windows 7? To the page https://www.postgresql.org/message-id/1328980004.2250.14.camel@localhost.localdomain it's written to remove .dll when loading   ...
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1answer
243 views

Identify mysqldump activity in MySQL log file?

I have a database that is being regularly backed up by mysqldump by... something. It's not a script that I wrote, not sure whose it is. I'm trying to find out more about these dumps, such as what ...
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23 views

How to debug INSERT statements

I have issues importing "not-so-small" dumps to MariaDB 10.4.6 in CentOS, but the error log and stderr is empty. I dumped many databases with mysqldump sized around 50MB / 500.000 rows each, and ...
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1answer
32 views

Duplicate rows with primary key constraint in PostgreSQL 10.6

I have a table that's had CONSTRAINT table_pkey PRIMARY KEY (id) since setup. However, I recently found that I have around 100 duplicate rows (I ran select count(*) from (select count(*) from table ...
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1answer
294 views

Include stored procedure text output in the maintenance plan log

I have a maintenance plan subtask in SQL Server 2012 Enterprise that executes a stored procedure (or a SQL Server agent job). In the log file for this maintenance plan, there are a few lines for this ...
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1answer
49 views

SQL Server Management Studio - Debugger buttons greyed

I have for mission to enable Transact SQL from a remote computer. My database is on a server and i'm trying to use the debug from a computer on the same network. My firewalls are all open on both side....
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1answer
5k views

SQL Server: Failed to start debugger - Data is Null

I'm a developer working on a web application using an instance of SQL Server 2014. I use Visual Studio 2010 sp1 for development. For a task I'm currently working on, I'd like to use the SQL Server ...
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2answers
4k views

Is it possible in Oracle to trace SQL statements that result in errors?

We have Oracle 11g in production. Application system is still under active development. It will be very handy to get SQL statements which cause any error. Does Oracle provide a standard function to ...
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1answer
1k views

Mysterious postgres process pegging CPU at 100%; no running queries

I have a recurring issue where a postgres process is pegging my cpu at > 100%. It's a strange one, you can see below the command is ./Ac2p20853 (surrounded by asterisks, added by me). Running SELECT ...
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2answers
6k views

How do I determine why a MongoDB document is failing validation?

How do I determine why a MongoDB document insert is failing validation? All I get back is a writeError that says "Document failed validation", which isn't very helpful. (This happens often, and I'd ...
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2answers
130 views

Object Reference Not Set … Debugging Stored Procedure in Visual Studio

I'm working on updating a stored procedure that is called to update a user. This stored procedure needs to also create a description of what was updated for auditing purposes. However when debugging ...
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1answer
345 views

mariadb (mysql) innodb not optimizing SELECT for partitions?

I have a table partitioned by on column "level" -- I have logs where level 7 is the verbose info, which is like 20x as many entries as all the other levels. When purging old logs in level 7, it was ...
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1answer
106 views

PostgreSQL: Log statements which do sequential scans

I use this snippet to detect missing indexes: https://stackoverflow.com/a/12818168/633961 Example: SELECT relname AS TableName, to_char(seq_scan, ...
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4answers
4k views

SQL Server Debugger Permissions without Granting sysadmin to Devs

BOL documentation says sysadmin permission is required to run debugger. I'm 90% certain there is no workaround to this requirement, but thought I would ask just in case someone found a way to grant ...
5
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1answer
1k views

Failed to start TSQL debugger

I want to debug in TSQL.When I start the debug the following message box popup. In SSMS v17.2 Then I see this message: In Microsoft Visual Studio 2015 Server Explorer same Error: Then I see this ...
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1answer
460 views

MySQL 5.7 GetDiagnostics is always returning null for SQLSTATE What am I doing wrong?

I have the following Handler and the sqlexception is being caught, but GET DIAGNOSTICS is not returning any information - they are all NULL. I have the following code: DECLARE CONTINUE HANDLER FOR ...
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1answer
188 views

MongoDB Implicit And

I'm trying to understand mongodb queries, but one of my queries is returning a record that it shouldn't. I am trying to call db.user.find({'referral.money':{'$ne':0, '$ne':null}}) to get all users ...
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1answer
1k views

Surprising results for data types with type modifier

While discussing a recursive CTE solution for this question: Get the last 5 distinct values for each ID @ypercube stumbled across a surprising exception, which lead us to investigate the handling of ...
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0answers
988 views

Dynamic SQL Stored Procedure called by a Function

I want to be able to dynamically call a function that contains a select statement whose table changes depending on the function parameters. I know this is not possible to do within a function, but I ...
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2answers
14k views

How to debug deadlocks in SQL Server 2008 R2?

I'm using SQL Server 2008 R2 that automatically lock database items based on my queries. Sometimes this deadlocks - two threads with different queries never ends. Is there any way to debug how SQL ...
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2answers
916 views

How to set default schema for PostgreSQL debugger?

I have 3 schemas: public, meta, data. While debugging large function from "data" schema in PgAdmin III or SQL Manager for PostgreSQL, debuggers doesn't see any tables or functions from the same ...
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348 views

How to know why my query times out sometimes, but gets executed other times (random behavior)?

I look at my code's logs, and see that a query to delete something which occurs like 200 times a day, sometimes times-out. I have no clue to how to debug this. Because it's a very random behavior. ...
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1answer
121 views

HSQL DB grows large and is full of zeroes

I have an application whose HSQL database grows awfully large for some users, but not others. When I received one example where this problem happenned, I discovered that the database is nearly empty - ...
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2answers
82 views

Get the Text of the currently running SQL?

This is something I am just interested in knowing if it is possible. Could I write an SQL query that could return the text of itself as a variable? Where I might use this would be on things like ...
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1answer
259 views

A workaround for restoring HierarchyId in SQL server 2014

After installing VS 2015 CTP 4, HierarchyID stopped working in SQL Server 2014. This is the bug listed here. I am looking for a workaround. To that end, I have tried reinstalling everything ...
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2answers
8k views

How to Log Debug Information About a Stored Procedure

We have a group of fairly complex stored procedures that process a transaction queue on a round the clock schedule. These scripts use a number of print statements to document what is being done to aid ...
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2answers
2k views

Where to look for possible deadlock causes?

We've been having several problems the past days in our production environment, and some of them seem to boil down to database issues. Just realized we are having deadlocks (68 actually), on database ...
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1answer
185 views

How to change default port for T-SQL Debugger

The default port for T-SQL Debugger is 135, it is possible to change this port ? In my company this port is on special list of banned ports, therefore we need to open that service on another port ...
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0answers
60 views

SQL Server - Debugging - How to show parametervalues as HEX

I am writing a script which sets Parameters in the Registry for SQL Server. The following works on some of my servers but not all. DECLARE @Parameters AS VARCHAR(MAX) SET @Parameters = '-T1118' ...
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929 views

SSIS detect & manipulate all user variables ( set all empty )

I am developing a rather large ETL ( 39 distinct Flat File or Excel Connection Managers in current build & about as many to go ) through SSIS ( Visual Studio and MSSQL Server versions both 2008-R2 ...
2
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1answer
686 views

Tracing the origin of noTimeout cursors

I'm currently managing a Mongo DB instance that has several applications using it. It's been accumulating noTimeout cursors, and, while it's easy enough to cull them if they start getting overwhelming,...
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0answers
429 views

SQL server actual execution plan: finding bottlenecks

I have a batch (7 queries) which executes in a couple of seconds locally by takes more than an hour in production. I've have a .sqlplan XML file from that long running query on production and trying ...
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0answers
3k views

SQL Error 1452 : Cannot add or update a child row: a foreign key constraint fails

I am trying to install Zabbix by following this guide. I ran into the following problems when trying to run data.sql after running scheme.sql successfully mysql -D zabbix -uzabbix -pPassword < /...
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154 views

Debugging value of varchar set to empty string crashes SSMS?

DECLARE @test varchar(1) = ''; SELECT @test When debugging, hovering over @test displays a little {...} token, and clicking the magnifying glass to open the text visualizer causes an application ...
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3k views

mysql eating RAM without queries?

Somehow MySQL eats up 50% of my RAM on the server being used. I checked and there are no queries, show full processlist is empty. I restarted the mysqld and within a couple of minutes the RAM usage ...
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1answer
334 views

Get the Messages stream in an SSRS RDL Report

So I'm trying to troubleshoot a particular SSRS RDL Report that literally takes forever to run (mostly because it has a mile of SQL to run). My question is: Is there any way to retrieve the execution ...
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1answer
47 views

getting null result from table with data [closed]

So i have those two tables: DROP TABLE Ticket CASCADE CONSTRAINTS PURGE; DROP TABLE Store CASCADE CONSTRAINTS PURGE; DROP TABLE Employee CASCADE CONSTRAINTS PURGE; CREATE TABLE Employee ( emp_ID ...
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1answer
105 views

False positive error message in MS Access (concurrent users)

I have discovered a strange apparent bug in MS Access and would like to know if others know it already and hopefully how to get around it. Trying to count records based on known column categories. ...
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1answer
2k views

Why is the “The package can not be saved to the file system since its protection level is server storage” error?

When I execute dtutil /sourceserver localhost /SQL "\Maintenance Plans\MaintenancePlan_daily" /copy file;.\MaintenancePlan_daily.dtsx from the answer to my question "Any way to import-export-...
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2answers
10k views

Why are breakpoints not being hit in SQL Server Management Studio?

SQL Server Management Studio allows debugging of SQL (breakpoints and stepping through the SQL). It is possible to step in to a stored proc being called and to see a call stack. However I cannot ...
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0answers
2k views

Debugging Postgres 9.3 Triggers

Right now I have a trigger in my database that is giving me some issues. I've set up this line so I can check what is being fetched from a query RAISE NOTICE 'hstore_key = %',hstore_key; as well I ...
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1answer
3k views

What PL/pgSQL debugger can I use?

I'm building a lot of PL/pgSQL functions and a debugger would really come in handy because RAISE NOTICE is not enough. I read about a pgAdmin plugin you can install but it was only on Windows and I'm ...
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2answers
70 views

Can I find errors without using testing data for all the branches of each function?

In PostgreSQL, syntax errors (except for trivial syntax errors) are reported while running the code in question; unlike Oracle, PostgreSQL can't find errors without running the part of the code. This ...
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2answers
2k views

How to configure data collection in SQL Server 2012?

In SSMS of SQL Server 2012 Enterprise on Windows Server R2 Standard, each time I am trying to set sub-option "On demand" of option "Non-cached - Collect and upload data on the same schedule" of Data ...
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1answer
699 views

MySQL MyISAM index causes query to match no rows; indexes disabled, rows match

I created a table and index as described in this SE post, but when I query the table for a particular ID, no matches are found. When I disable the index, matches are found. Commands ran: CREATE ...
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3answers
903 views

How to make SQL Server Agent job history less verbose?

So, I've created a SQL Server Agent job, according to the answer to my prev question: running nightly (at 2:11) according to the schedule: There are 9 .bak files in 3 subdirectory of d:\backup\ ...
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1answer
287 views

Error wile debugging (signature buffer too small)

I'm trying to debug a package in SQL Developer, but I keep getting error: ORA-00600: internal error code, arguments: [15419], [severe error during PL/SQL execution], [], [], [], [], [], [] ORA-06544: ...
3
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1answer
499 views

Is there an effective way to create extended event data that includes stacktraces in SQL Server on a local db instance?

I read Paul Randal's article on getting the symbols for SQL Server. I have a theory that I could get the extended events to read the symbols from the symbol server catch directory by setting the ...
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1answer
1k views

High MySQL CPU usage, queries seem fine, not running ntp

I've had about 48 hours of extremely high CPU usage on my main MySQL database for no apparent reason. I realize this question is quite similar to the one posed here: High CPU usage from MySQL with no ...
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0answers
2k views

MySQL: Writing log entries from stored procedure

Is there a standard way to write log messages in MySQL stored procedures? I can write log messages to a designated log table, but I prefer the standard log mechanism where each message is coupled ...