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Su, Xiaomeng be9eabe464 dli_sqlreference_20250305

Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com>
Co-authored-by: Su, Xiaomeng <suxiaomeng1@huawei.com>
Co-committed-by: Su, Xiaomeng <suxiaomeng1@huawei.com>

2025-03-25 09:06:21 +00:00

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Checking All Partitions in a Specified Table

Function

This statement is used to check all partitions in a specified table.

Syntax

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SHOW PARTITIONS [db_name.]table_name
  [PARTITION partition_specs];

Keywords

PARTITIONS: partitions in a specified table
PARTITION: a specified partition

Parameters

**Table 1** Parameters
Parameter	Description
db_name	Database name that contains letters, digits, and underscores (_). It cannot contain only digits and cannot start with an underscore (_).
table_name	Table name of a database that contains letters, digits, and underscores (_). The name cannot contain only digits or start with an underscore (_). The matching rule is *^(?!_)(?![0-9]+$)[A-Za-z0-9_$]$**. If special characters are required, use single quotation marks ('') to enclose them.
partition_specs	Partition information, in the format of "key=value", where key indicates the partition field and value indicates the partition value. If a partition field contains multiple fields, the system displays all partition information that matches the partition field.

Precautions

The table specified in this statement must exist and must be a partitioned table. Otherwise, an error is reported.

Example

To show all partitions in the student table, run the following statement:
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SHOW PARTITIONS student;
Check the dt='2010-10-10' partition in the student table, run the following statement:
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SHOW PARTITIONS student PARTITION(dt='2010-10-10');

Parent topic: Checking Tables

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