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IDERA ER/Studio vs IDERA SQL Diagnostic Manager for SQL Server vs Toad Data Modeler comparison

 

Comparison Buyer's Guide

Executive Summary

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Mindshare comparison

As of June 2025, in the Database Development and Management category, the mindshare of IDERA ER/Studio is 3.0%, up from 2.2% compared to the previous year. The mindshare of IDERA SQL Diagnostic Manager for SQL Server is 4.2%, up from 3.7% compared to the previous year. The mindshare of Toad Data Modeler is 3.7%, up from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Database Development and Management
 

Featured Reviews

Aaron Cutshall - PeerSpot reviewer
Used for data modeling and has a scripting language to write your own scripts
The solution has streamlined our data modeling processes quite a bit. It's a central focus in our data modeling and data cataloging efforts. The tool's reverse engineering capability to bring in existing database structures and create models from them has benefitted our data architecture needs. With the tool's data dictionary capability, we're able to maintain consistency in our models, name use, and actual data domains. The solution's reverse engineering helps with understanding legacy databases. In fact, I've been asked to reverse-engineer several more legacy databases so that we can have them modeled and cataloged. The solution is deployed on the cloud server, but it’s only within our network. The solution has a lot of capabilities. I like the fact that it has a scripting language that allows you to automate and write your own scripts. I think that's been a big bonus for us. I highly recommend the solution because of its capability for logical models, where you can put your business definitions and logic. While less expensive, some other tools can't do that. Overall, I rate the solution an eight out of ten.
reviewer2317098 - PeerSpot reviewer
Offers effective monitoring of resources but lacks the ability to connect to an AWS instance and write custom queries.
We use it mainly for monitoring, including CPU, memory, and disk space, and for troubleshooting purposes We've set up alerts to notify us when performance deviates from the baseline we've configured for each resource. So, whenever that happens, we get an alert and can investigate immediately. So,…
JamesBlack - PeerSpot reviewer
A scalable and stable product that is easy to deploy and provides excellent features
The Oracle side of things was very popular. The admin features for Oracle were great. It would be a really good thing if we had a similar functionality to SQL Server. The product is not too bad with maintenance. MySQL would be better than Toad. I always recommend the product to others. Overall, I rate the solution a nine out of ten.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"I set up this tool and found it to be very simple."
"The most important features are logical and physical models that we can compare and develop. Also, the Data Dictionary can be created out of your studio. Finally, database schemas help understand the logic that's behind the scene, behind the SQL tables. Especially when there are a lot of them, the schemas help everyone understand the business processes."
"It's easy to model and has a user-friendly interface. I like the team portal because, once we upload, the entire team can see the model."
"IDERA keeps up with the versions of Oracle and SQL Server that I'm using. I mostly use SQL Server and when there are new features, a new type of index, for example, IDERA also includes them in upgrades of the data modeling tool."
"We are able to document the data lineage and data flows of our data from one system to another."
"The most valuable features are... those that enable me to represent the database to the development community and the business users."
"One of the valuable features is inheritance when joining tables. When setting up RI and domains and rules, ER/Studio does a lot of the grunt, boilerplate code that would otherwise have to be hand-coded."
"We have a database design group of about 15 people. The Repository enables multiple people to work on the same model at the same time. We have fully integrated models, so we have one model for the enterprise data warehouse, one model for MDM, with a lot of sub-models in these things. People work on different parts of the model at different times. So the repository enables us to share the models, and keep track of what everybody is working on."
"The best part of SQL DM is the ability to customize alerts and counters. This allows our team to find an issue then alert on the issue at a granular level."
"We're able to diagnose issues prior to their actually becoming issues. Without the alerting, we wouldn't have a clue as to what was going to happen. With the alerting, it gives us a heads-up that a specific threshold has been met, and we need to take specific action."
"Memory and CPU utilization features are good."
"Monitors and alerts on our mission critical instances in real-time on a 24/7 basis."
"SQL DM made troubleshooting much easier and allowed multiple people to look into an issue with confidence."
"The most valuable features are disk space projections for planning, and also the Snapshotting ability, to look back in time, to see what was going on the server at a particular time. It's basically the output of an sp_who2."
"The ability to go back and look at historical data is the most valuable feature."
"The feature I really like is the graphical part, especially the control of the relationships."
"Auto-complete is the best feature of the solution."
"I found all features valuable and necessary in Toad Data Modeler, particularly how good the solution is for modeling, database schema generation, and database re-engineering. I also found Toad Data Modeler straightforward to use."
"It is not feasible for small businesses. It is not used in a small company."
 

Cons

"when there are some links to the external databases, if this database is not structured it is not uploaded. It gives me errors and I cannot see the view that was created on this structure and I cannot change those views, even manually. It skips the views. I have to ignore those views. I cannot re-upload them because it gives me an error."
"They allow functionalities to be released before the full tests for catching and correcting errors are completed."
"The visual presentation is a little too colorful and seems that it is dumbed down."
"It would be helpful if they could create a generic JSON database type, as a target database, rather than a specific one like Mongo."
"The only thing I had an issue with was licensing, and the support was very good."
"I cannot evaluate any areas for improvement at this time."
"What I would like to see improved is the reliability of the releases, releases that are a little less buggy."
"There was no specific mention of areas needing improvement."
"One thing I'd like to see is the ability to view the execution plan and have the system automatically recommend potential query optimizations, especially at the query level."
"I would absolutely love to create customized dashboards but, unfortunately, they don't provide me the information that I need to create the report. The report I need is the detail or the transaction detail that's happening on those Snapshots. I'd like to be able to go back through time and search for things. I don't have that functionality, which is very disappointing. That's pretty bad and frustrating because I could query it and find out so much information about what's hitting my environment and when, but instead, they want control over it and to not give me that information. So it's encrypted. I can't pull it out and that is really bothersome."
"It would helpful if SQL DM could mark when changes are made within the program."
"The initial setup gives too many user rights to the server, so you have to put a user that is part administrator's group - that's the preferred way - on each server, which is kind of a risk. You want to do least privilege and you're not doing that."
"I'm going to do an upgrade which may resolve my issues, but one area for improvement is its ability to handle the amount of data that we collect with it. We're likely one of the largest installations, with over 300 servers being collected with this product, and sometimes there are gaps. That would really be my only concern, in terms of how the data is collected and stored, for consistency."
"We don't find that it helps us with performance monitoring and diagnostics. We find that SentryOne does that better. Also, in terms of alerts, we had to customize them dramatically so that we didn't get alerted on every little thing."
"They can improve checking the status of the CPU, memory, and IO utilization from each task."
"It is not feasible for small businesses. It is not used in a small company."
"Many users don't know how to add licensing to Toad, or where it is shown, so they could make that easier."
"The product should provide better debugging features."
"What could be improved in Toad Data Modeler is stability and the complex setup."
"When updating a model after generating a schema, if only a few tables are imported, the tool assumes you want to delete the rest, which is cumbersome."
 

Pricing and Cost Advice

"I feel the product's pricing is a good value."
"The product is pricey."
"I am currently using the trial version, but this solution is definitely worth considering for the price point."
"The process of licensing could be much simpler, from our experience."
"It is priced fairly. It's around the same as erwin and other competitors' costs."
"Pricing is on point, but do your due diligence - not every developer needs the tool."
"The setup cost may have been around $1500 to $2000."
"At my previous company using ER/Studio, a database compare took four hours before using the product and 15 minutes after using the product."
"We were upgraded to Premium Support without their actually asking us, when we were quoted. Then I asked for Standard Support and that they had to re-quote us that. But they don't do that by default. They upcharge you by default, which I didn't think was very nice, without even asking."
"The pricing is reasonable, it's comparable with the competitors."
"Price-wise, the lesser it is, the better it is for me, especially in Egypt. I think that the licensing cost ranges from 1,000 to 9,000. Also, it includes maintenance and support for a year."
"Though I'm not involved in the licensing for Toad Data Modeler, I believe it's per user and not cheap."
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Top Industries

By visitors reading reviews
Financial Services Firm
18%
Computer Software Company
9%
Energy/Utilities Company
9%
Government
8%
Financial Services Firm
12%
Comms Service Provider
10%
Computer Software Company
10%
Government
7%
Government
15%
Financial Services Firm
14%
Computer Software Company
10%
Manufacturing Company
9%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
 

Questions from the Community

What is your experience regarding pricing and costs for IDERA ER Studio?
In terms of pricing, ER/Studio is slightly more expensive compared to Erwin, by about five to ten percent.
What is your primary use case for IDERA ER Studio?
I have been working with data modeling tools. Personally, I have been working with Erwin for many years now. ER/Studi...
What advice do you have for others considering IDERA ER Studio?
I would strongly recommend ER/Studio for large teams. Erwin is a very stable product, but for smaller teams, it's oka...
What do you like most about IDERA SQL Diagnostic Manager for SQL Server?
The ability to go back and look at historical data is the most valuable feature.
What needs improvement with IDERA SQL Diagnostic Manager for SQL Server?
One thing I'd like to see is the ability to view the execution plan and have the system automatically recommend poten...
What is your primary use case for IDERA SQL Diagnostic Manager for SQL Server?
We use it mainly for monitoring, including CPU, memory, and disk space, and for troubleshooting purposes.
What do you like most about Toad Data Modeler?
Auto-complete is the best feature of the solution.
What is your experience regarding pricing and costs for Toad Data Modeler?
Considering its functionality, I would rate its pricing as a seven out of ten. It could be cheaper yet is still prett...
What needs improvement with Toad Data Modeler?
1) When updating a model after generating a schema, if only a few tables are imported, the tool assumes you want to d...
 

Also Known As

IDERA ER Studio, ER/Studio, ER/Studio Enterprise Team Edition
IDERA SQL DM, IDERA SQL Diagnostic Manager
Toad
 

Overview

 

Sample Customers

Newmont Mining, Entrust, Accolade, TalkTalk, Catalina, Protective Life, NTT Data, dir systèmes, Microsoft; American Express, Astellas Pharma, AstraZeneca, Coriant, Fedex, GlaxoSmithKline, PepsiCo, Prudential, Wells Fargo
Padnos, University of Notre Dame, D4, Infeon Technologies, Chevron, LC Waikiki, Sisters of Saint Francis Health Services, Seattle Cancer Care Alliance, CVE, Colorado State University, St. Charles, Chaucer PLC, 1-800-Flowers, Ancoris, Money Management, National Opinion Research Center, California Department of Health, Plexus; Aviva, Burlington Northern Santa Fe, CBS, Comcast, Google, Merck, Regions Financial, Schneider Electric, Tata Consultancy Services, Verizon Communications, Zurich Financial Services
Zions Bancorporation
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