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• --ndb-optimized-node-selection 

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Enable optimizations for selection of nodes for transactions. Enabled by default; use --skip-ndb- optimized-node-selection  to disable. 

• --no-defaults 

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Do not read default options from any option file other than login file. 

• --print-defaults 

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Print program argument list and exit. 

• --transactional , -t 

Use of this option causes the delete operation to be performed as a single transaction. 

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• --tupscan 

Run a tuple scan. 

• --usage 

## Warning 

With very large tables, using this option may cause the number of operations available to the cluster to be exceeded. 

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Display help text and exit; same as --help . 

• --version 

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Display version information and exit. 

Prior to NDB 8.0.18, this program printed NDBT_ProgramExit - status  upon completion of its run, due to an unnecessary dependency on the NDBT  testing library. This dependency has been removed, eliminating the extraneous output. 

## 23.4.9 ndb_desc — Describe NDB Tables 

## Usage 

ndb_desc  provides a detailed description of one or more NDB  tables. 

ndb_desc -c connection_string tbl_name  -d db_name  [ options ] ndb_desc -c connection_string index_name  -d db_name  -t tbl_name 

