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define( ‘COOKIE_DOMAIN’, false );

paginas para obtener imagenes gratis

https://pixabay.com/

https://unsplash.com/

https://www.shutterstock.com/

tambien se pueden buscar desde google con la opcion tools y seleccionando

Labeled for reuse with modification

Query para obtener el numero de registros de cada tabla en postgresql

SELECT

nspname AS schemaname,relname,reltuples::integer

FROM pg_class C

LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)

WHERE

nspname NOT IN ('pg_catalog', 'information_schema') AND

relkind='r'

ORDER BY reltuples DESC;

Descomprimir archivo en linux

Archivos .tar.gz:
Comprimir: tar -czvf empaquetado.tar.gz /carpeta/a/empaquetar/
Descomprimir: tar -xzvf archivo.tar.gz

Archivos .tar:
Empaquetar: tar -cvf paquete.tar /dir/a/comprimir/
Desempaquetar: tar -xvf paquete.tar

Archivos .gz:
Comprimir: gzip -9 index.php
Descomprimir: gzip -d index.php.gz

Archivos .zip:
Comprimir: zip archivo.zip carpeta
Descomprimir: unzip archivo.zip

Listar el tamaño d ela stablas de una base de datos

mysql> SELECT table_name AS "tabla", ROUND(((data_length + index_length) / 1024 / 1024), 2) AS "Tamaño (MB)" FROM information_schema.TABLES WHERE table_schema = "ebdb" ORDER BY (data_length + index_length) DESC;
+--------------------------+--------------+
| tabla                    | Tamaño (MB)  |
+--------------------------+--------------+
| wp_postmeta              |      2172.67 |
| wp_options               |       990.19 |
| wp_posts                 |       573.66 |
| wp_cf_form_entry_values  |       124.20 |
| wp_redirection_404       |        48.69 |
| wp_cf_form_entries       |        18.58 |
| wp_ine_activity_log      |        13.52 |
| wp_redirection_logs      |         3.33 |
| wp_usermeta              |         0.55 |
| wp_term_relationships    |         0.22 |
| wp_redirection_items     |         0.09 |
| wp_terms                 |         0.09 |
| wp_term_taxonomy         |         0.09 |
| wp_comments              |         0.09 |
| wp_users                 |         0.06 |
| wp_cf_tracking_meta      |         0.05 |
| wp_redirection_groups    |         0.05 |
| wp_cf_form_entry_meta    |         0.05 |
| wp_termmeta              |         0.05 |
| wp_commentmeta           |         0.05 |
| wp_download_log          |         0.03 |
| wp_dlm_order_transaction |         0.03 |
| wp_dlm_order_item        |         0.03 |
| wp_links                 |         0.03 |
| wp_dlm_order_customer    |         0.03 |
| wp_cf_tracking           |         0.02 |
| wp_ine_activity_conf_log |         0.02 |
| wp_dlm_session           |         0.02 |
| wp_dlm_order             |         0.02 |
| wp_responsive_menu       |         0.02 |
+--------------------------+--------------+
30 rows in set (0.00 sec)

Listar el numero de resgitros de tablas de una base de datos

mysql> SELECT table_name as tablas, table_rows as registros FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'ebdb';                                         +--------------------------+-----------+
| tablas                   | registros |
+--------------------------+-----------+
| wp_cf_form_entries       |    133859 |
| wp_cf_form_entry_meta    |         0 |
| wp_cf_form_entry_values  |    801966 |
| wp_cf_tracking           |         0 |
| wp_cf_tracking_meta      |         0 |
| wp_commentmeta           |         0 |
| wp_comments              |         0 |
| wp_dlm_order             |         0 |
| wp_dlm_order_customer    |         0 |
| wp_dlm_order_item        |         0 |
| wp_dlm_order_transaction |         0 |
| wp_dlm_session           |         0 |
| wp_download_log          |        27 |
| wp_ine_activity_conf_log |         0 |
| wp_ine_activity_log      |    103685 |
| wp_links                 |         0 |
| wp_options               |    110724 |
| wp_postmeta              |    280516 |
| wp_posts                 |     59708 |
| wp_redirection_404       |    114932 |
| wp_redirection_groups    |         2 |
| wp_redirection_items     |        68 |
| wp_redirection_logs      |      6851 |
| wp_responsive_menu       |       279 |
| wp_term_relationships    |      2271 |
| wp_term_taxonomy         |       396 |
| wp_termmeta              |        38 |
| wp_terms                 |       396 |
| wp_usermeta              |      2701 |
| wp_users                 |        71 |
+--------------------------+-----------+
30 rows in set (0.00 sec)

Listar el tamaño de todas las bases de datos.

mysql> SELECT table_schema AS "ebdb", ROUND(SUM(data_length + index_length) / 1024 / 1024, 2) AS "Tamaño (MB)" FROM information_schema.TABLES GROUP BY table_schema;
+--------------------+--------------+
| ebdb               | Tamaño (MB)  |
+--------------------+--------------+
| curso1             |         4.05 |
| ebdb               |      3946.50 |
| farodb             |       640.95 |
| gym                |         0.70 |
| information_schema |         0.16 |
| live               |         8.88 |
| musica             |       712.17 |
| mysql              |         3.94 |
| netfam             |         0.55 |
| performance_schema |         0.00 |
| PFE                |        57.86 |
| plugins            |         0.67 |
| quirospacio        |         4.25 |
| sici1              |        17.09 |
| sici2              |        16.61 |
| sys                |         0.02 |
+--------------------+--------------+
16 rows in set (2.17 sec)