DevExpress / DevExpress/DevExtreme.AspNet.Data

Use variables instead of literals when building the "WHERE" clause

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#467 1 comment 4 reactions 0 assignees View on GitHub

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enhancement
Dominant language
C#
Stars
165
Forks
140
Avg merge
1d 2h
Merged PRs (30d)
4

Description

Databases can skip the SQL parsing as well as the creation of the execution plan when bind variables are used and the same query (with different values) was already executed (what is the typical case for a grid SQL). This should make the query execution faster

See the following SC thread for details: T974081

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No file, test, or entry point is named in the issue. Start by locating the code that builds the SQL WHERE clause, then read the linked Support Center ticket for the bind-variable requirements. Done means repeated grid queries use variables rather than embedded literals while preserving query behavior and improving execution efficiency.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp, sql
Domain
backend, databases
Issue type
Refactor
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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