在字段类型上设置过滤器以获取带有文本类型的MySQL列？
要为类型设置过滤器，您可以使用以下语法-
SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE DATA_TYPE = 'yourDataTypeName';
让我们实现以上语法以仅显示具有字段类型文本的字段-
mysql> SELECT TABLE_NAME, COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE DATA_TYPE = 'text';
这将产生以下输出-
+---------------------------------------------+--------------------------------+ | TABLE_NAME | COLUMN_NAME | +---------------------------------------------+--------------------------------+ | COLUMNS | COLUMN_DEFAULT | | COLUMNS | COLUMN_COMMENT | | FILES | FILE_NAME | | PARTITIONS | PARTITION_DESCRIPTION | | PARTITIONS | PARTITION_COMMENT | | ROUTINES | ROUTINE_COMMENT | | replication_group_member_stats | LAST_CONFLICT_FREE_TRANSACTION | | password_history | Password | | component | component_urn | | innodb_buffer_stats_by_schema | object_schema | | innodb_buffer_stats_by_schema | allocated | | innodb_buffer_stats_by_schema | data | | x$innodb_buffer_stats_by_schema | object_schema | | innodb_buffer_stats_by_table | object_schema | | innodb_buffer_stats_by_table | object_name | | innodb_buffer_stats_by_table | allocated | | innodb_buffer_stats_by_table | data | | x$innodb_buffer_stats_by_table | object_schema | | x$innodb_buffer_stats_by_table | object_name | | x$schema_flattened_keys | index_columns | | schema_redundant_indexes | redundant_index_columns | | schema_redundant_indexes | dominant_index_columns | | latest_file_io | latency | | latest_file_io | requested | | io_by_thread_by_latency | total_latency | | io_by_thread_by_latency | min_latency | | io_by_thread_by_latency | avg_latency | | io_by_thread_by_latency | max_latency | | io_global_by_file_by_bytes | total_read | | io_global_by_file_by_bytes | avg_read | | io_global_by_file_by_bytes | total_written | | io_global_by_file_by_bytes | avg_write | | io_global_by_file_by_bytes | total | | io_global_by_file_by_latency | total_latency | | io_global_by_file_by_latency | read_latency | | io_global_by_file_by_latency | write_latency | | io_global_by_file_by_latency | misc_latency | | io_global_by_wait_by_bytes | total_latency | | io_global_by_wait_by_bytes | min_latency | | io_global_by_wait_by_bytes | avg_latency | | io_global_by_wait_by_bytes | max_latency | | io_global_by_wait_by_bytes | total_read | | io_global_by_wait_by_bytes | avg_read | | io_global_by_wait_by_bytes | total_written | | io_global_by_wait_by_bytes | avg_written | | io_global_by_wait_by_bytes | total_requested | | io_global_by_wait_by_latency | total_latency | | io_global_by_wait_by_latency | avg_latency | | io_global_by_wait_by_latency | max_latency | | io_global_by_wait_by_latency | read_latency | | io_global_by_wait_by_latency | write_latency | | io_global_by_wait_by_latency | misc_latency | | io_global_by_wait_by_latency | total_read | | io_global_by_wait_by_latency | avg_read | | io_global_by_wait_by_latency | total_written | | io_global_by_wait_by_latency | avg_written | | memory_by_user_by_current_bytes | current_allocated | | memory_by_user_by_current_bytes | current_avg_alloc | | memory_by_user_by_current_bytes | current_max_alloc | | memory_by_user_by_current_bytes | total_allocated | | memory_by_host_by_current_bytes | current_allocated | | memory_by_host_by_current_bytes | current_avg_alloc | | memory_by_host_by_current_bytes | current_max_alloc | | memory_by_host_by_current_bytes | total_allocated | | memory_by_thread_by_current_bytes | current_allocated | | memory_by_thread_by_current_bytes | current_avg_alloc | | memory_by_thread_by_current_bytes | current_max_alloc | | memory_by_thread_by_current_bytes | total_allocated | | memory_global_by_current_bytes | current_alloc | | memory_global_by_current_bytes | current_avg_alloc | | memory_global_by_current_bytes | high_alloc | | memory_global_by_current_bytes | high_avg_alloc | | memory_global_total | total_allocated | | schema_index_statistics | select_latency | | schema_index_statistics | insert_latency | | schema_index_statistics | update_latency | | schema_index_statistics | delete_latency | | schema_table_statistics | total_latency | | schema_table_statistics | fetch_latency | | schema_table_statistics | insert_latency | | schema_table_statistics | update_latency | | schema_table_statistics | delete_latency | | schema_table_statistics | io_read | | schema_table_statistics | io_read_latency | | schema_table_statistics | io_write | | schema_table_statistics | io_write_latency | | schema_table_statistics | io_misc_latency | | schema_table_statistics_with_buffer | fetch_latency | | schema_table_statistics_with_buffer | insert_latency | | schema_table_statistics_with_buffer | update_latency | | schema_table_statistics_with_buffer | delete_latency | | schema_table_statistics_with_buffer | io_read | | schema_table_statistics_with_buffer | io_read_latency | | schema_table_statistics_with_buffer | io_write | | schema_table_statistics_with_buffer | io_write_latency | | schema_table_statistics_with_buffer | io_misc_latency | | schema_table_statistics_with_buffer | innodb_buffer_allocated | | schema_table_statistics_with_buffer | innodb_buffer_data | | schema_table_statistics_with_buffer | innodb_buffer_free | | schema_tables_with_full_table_scans | latency | | schema_table_lock_waits | waiting_account | | schema_table_lock_waits | blocking_account | | x$schema_table_lock_waits | waiting_account | | x$schema_table_lock_waits | blocking_account | | statement_analysis | total_latency | | statement_analysis | max_latency | | statement_analysis | avg_latency | | statement_analysis | lock_latency | | statements_with_full_table_scans | total_latency | | statements_with_runtimes_in_95th_percentile | total_latency | | statements_with_runtimes_in_95th_percentile | max_latency | | statements_with_runtimes_in_95th_percentile | avg_latency | | statements_with_sorting | total_latency | | statements_with_temp_tables | total_latency | | user_summary_by_file_io_type | latency | | user_summary_by_file_io_type | max_latency | | user_summary_by_file_io | io_latency | | user_summary_by_statement_type | total_latency | | user_summary_by_statement_type | max_latency | | user_summary_by_statement_type | lock_latency | | user_summary_by_statement_latency | total_latency | | user_summary_by_statement_latency | max_latency | | user_summary_by_statement_latency | lock_latency | | user_summary_by_stages | total_latency | | user_summary_by_stages | avg_latency | | user_summary | statement_latency | | user_summary | statement_avg_latency | | user_summary | file_io_latency | | user_summary | current_memory | | user_summary | total_memory_allocated | | host_summary_by_file_io_type | total_latency | | host_summary_by_file_io_type | max_latency | | host_summary_by_file_io | io_latency | | host_summary_by_statement_type | total_latency | | host_summary_by_statement_type | max_latency | | host_summary_by_statement_type | lock_latency | | host_summary_by_statement_latency | total_latency | | host_summary_by_statement_latency | max_latency | | host_summary_by_statement_latency | lock_latency | | host_summary_by_stages | total_latency | | host_summary_by_stages | avg_latency | | host_summary | statement_latency | | host_summary | statement_avg_latency | | host_summary | file_io_latency | | host_summary | current_memory | | host_summary | total_memory_allocated | | wait_classes_global_by_avg_latency | total_latency | | wait_classes_global_by_avg_latency | min_latency | | wait_classes_global_by_avg_latency | avg_latency | | wait_classes_global_by_avg_latency | max_latency | | wait_classes_global_by_latency | total_latency | | wait_classes_global_by_latency | min_latency | | wait_classes_global_by_latency | avg_latency | | wait_classes_global_by_latency | max_latency | | waits_by_user_by_latency | total_latency | | waits_by_user_by_latency | avg_latency | | waits_by_user_by_latency | max_latency | | waits_by_host_by_latency | total_latency | | waits_by_host_by_latency | avg_latency | | waits_by_host_by_latency | max_latency | | waits_global_by_latency | total_latency | | waits_global_by_latency | avg_latency | | waits_global_by_latency | max_latency | | processlist | statement_latency | | processlist | lock_latency | | processlist | last_statement_latency | | processlist | current_memory | | processlist | last_wait_latency | | processlist | trx_latency | | session | statement_latency | | session | lock_latency | | session | last_statement_latency | | session | current_memory | | session | last_wait_latency | | session | trx_latency | | INNODB_COLUMNS | DEFAULT_VALUE | | texturl | URLID | | textdemo | name | | texttabledemo | Address | | searchtextdemo | BookName | | retrievefirst40characters | AllWords | | lastindexstring | yourURL | | stringcontainsnumber | Words | | occurrencesofcharacter | sentence | | textdemo | sentence | | countvaluescommaseparated | CommaSeparatedValue | | removedemo | Name | | viewtabledemo | UserComments | | usercommentsview | UserComments | | userinformation | UserPost | | avoidinserterrordemo | Sentence | | extracttuples | Comments | | findbestmatch | UserQuery | | user | authentication_string | | help_topic | description | | help_topic | example | | help_topic | url | | help_category | url | | slave_relay_log_info | Relay_log_name | | slave_relay_log_info | Master_log_name | | slave_master_info | Master_log_name | | slave_master_info | User_name | | slave_master_info | User_password | | slave_master_info | Ssl_ca | | slave_master_info | Ssl_capath | | slave_master_info | Ssl_cert | | slave_master_info | Ssl_cipher | | slave_master_info | Ssl_key | | slave_master_info | Bind | | slave_master_info | Ignored_server_ids | | slave_master_info | Uuid | | slave_master_info | Ssl_crl | | slave_master_info | Ssl_crlpath | | slave_master_info | Tls_version | | slave_master_info | Public_key_path | | slave_worker_info | Relay_log_name | | slave_worker_info | Master_log_name | | slave_worker_info | Checkpoint_relay_log_name | | slave_worker_info | Checkpoint_master_log_name | | posts | post_content | | updatestringdemo | FileName | | selectrowdemo | Message | | findstringwithgivenprefixdemo &