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Asked: 2026-05-23T14:17:04+00:00

There is a limit of 2,100 parameters which can be passed to a Sql

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There is a limit of 2,100 parameters which can be passed to a Sql Server query i.e. via ADO.Net, but what are the documented limits for other common databases used by .Net developers – in particular I’m interested in:

  • Oracle 10g/11g
  • MySql
  • PostgreSql
  • Sqlite

Does anyone know?

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  1. Editorial Team

    Oracle: 64,000. Source

    MySQL:

    • By default, there is no limit. The MySQL “text protocol” requires that the .NET client library substitute all parameters before sending the command text to the server; there is no server-side limit that can be enforced, and the client has no limit (other than available memory).
    • If using “prepared statements” by calling MySqlCommand.Prepare() (and specifying IgnorePrepare=false in the connection string), then there is a limit of 65,535 parameters (because num_params has to fit in two bytes).

    PostgreSql: EDIT: 34464 for a query and 100 for a function as per Magnus Hagander’s answer (Answer copied here to provide a single point of reference)

    SqlLite: 999 (SQLITE_MAX_VARIABLE_NUMBER, which defaults to 999, but can be lowered at runtime) – And for functions default is 100 parameters. See section 9 Of Run-time limits documentation

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