Select count(*) from all tables mysql
Like many others, I have difficulty getting an accurate value on the Show First, make sure to enable massive group_concats:
Then run this query to get the resultant query you'll run for your database.
This will generate output such as...
This in turn gave the following results: To count the total number of tables, use the concept of count(*) with table_schema. First, to check how many tables are present in our database “business”, we need to use the ‘show’ command. mysql> show tables; The following is the output that displays all the tables in the database "business". +--------------------------+ | Tables_in_business | +--------------------------+ | addcheckconstraintdemo | | addcolumntable | | addconstraintdemo | | addnotnulldemo | | alphademo | | autoincrement | | autoincrementtable | | backticksymbol | | bookindexes | | chardemo | | checkdemo | | clonestudent | | columnexistdemo | | columnvaluenulldemo | | commaseperatedemo | | currentdatetime | | dateadddemo | | deletedemo | | deleterecord | | demo | | demo1 | | demoascii | | demoauto | | demobcrypt | | demoemptyandnull | | demoint | | demoonreplace | | demoschema | | demowhere | | distcountdemo | | distinctdemo | | distinctdemo1 | | duplicatebookindexes | | duplicatefound | | employeerecords | | employeetable | | escapedeom | | existsrowdemo | | findandreplacedemo | | firsttable | | foreigntable | | foreigntabledemo | | functionindexdemo | | functiontriggersdemo | | groupconcatenatedemo | | groupdemo | | groupdemo1 | | groupt_concatdemo | | ifelsedemo | | imagedemo | | incasesensdemo | | indexingdemo | | int1demo | | intdemo | | keydemo | | latandlangdemo | | limitoffsetdemo | | milliseconddemo | | modifycolumnnamedemo | | modifydatatype | | moneydemo | | moviecollection | | multipleindexdemo | | multiplerecordwithvalues | | myisamtoinnodbdemo | | mytable | | mytable1 | | newstudent | | nextpreviousdemo | | nonasciidemo | | nthrecorddemo | | nulldemo | | nullwithselect | | numbercolumndemo | | ondemo | | originaltable | | pasthistory | | presenthistory | | primarytable | | primarytable1 | | primarytabledemo | | qutesdemo | | rowcountdemo | | rownumberdemo | | rowstranspose | | rowstransposedemo | | saveintotextfile | | saveoutputintext | | secondtable | | sequencedemo | | singlequotesdemo | | smallintdemo | | sortingvarchardemo | | sourcetable | | spacecolumn | | student | | studentrecordwithmyisam | | studenttable | | table1 | | table2 | | tabledemo | | tbldemotrail | | tblf | | tblfirst | | tblfunctiontrigger | | tblifdemo | | tblp | | tblselectdemo | | tblstudent | | tbluni | | tblupdatelimit | | textdemo | | texturl | | timestampdemo | | trailingandleadingdemo | | transcationdemo | | triggedemo | | trigger1 | | trigger2demo | | trimdemo | | trimdemo2 | | uniqueconstdemo | | uniquedemo | | unsigneddemo | | updtable | | usernameandpassworddemo | | varchardemo | | varchardemo1 | | varchardemo2 | | varcharurl | | whereconditon | | xmldemo | +--------------------------+ 132 rows in set (0.01 sec) In the above, we have 132 tables in the database business. To check the count of tables. mysql> SELECT count(*) AS TOTALNUMBEROFTABLES -> FROM INFORMATION_SCHEMA.TABLES -> WHERE TABLE_SCHEMA = 'business'; The following output gives the count of all the tables. +---------------------+ | TOTALNUMBEROFTABLES | +---------------------+ | 132 | +---------------------+ 1 row in set (0.01 sec)
Updated on 30-Jul-2019 22:30:23
How do I count all tables in a database?To check the count of tables. mysql> SELECT count(*) AS TOTALNUMBEROFTABLES -> FROM INFORMATION_SCHEMA. TABLES -> WHERE TABLE_SCHEMA = 'business'; The following output gives the count of all the tables.
How do I find the row count of all tables in a database?We can get the Count of rows of the table with any of the following methods:. Use COUNT() function.. Combining SQL Server catalog views.. Using sp_spaceused stored procedure.. Using SQL Server Management studio.. What is count (*) in MySQL?MySQL COUNT() Function
The COUNT() function returns the number of records returned by a select query.
What is the result of given query count (*) from table?The SQL COUNT() function returns the number of rows in a table satisfying the criteria specified in the WHERE clause. It sets the number of rows or non NULL column values. COUNT() returns 0 if there were no matching rows.
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