Creating database tables in SQL is one of the most common tasks a developer or DBA does in a database. Learn how to create tables, what the syntax is, and see some examples in this article. This guide applies to Oracle, SQL Server, MySQL, and PostgreSQL. Table of Contents What Is Th...
Here, the SQL command checks if a table namedCompaniesexists, and if not, it creates a table with specified columns. Create Table Using Another Existing Table In SQL, we can create a new table by duplicating an existing table's structure. Let's look at an example. -- create a backup t...
Simple CREATE TABLE syntax (common if not using options): syntaxsql Copy CREATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } ( { <column_definition> } [ ,... n ] ) [ ; ] Full syntax Disk-based CREATE TABLE syntax: syntaxsql Copy CREATE...
The Syntax for the CREATE TABLE Statement is:CREATE TABLE table_name (column_name1 datatype, column_name2 datatype, ... column_nameN datatype ); table_name - is the name of the table. column_name1, column_name2... - is the name of the columns datatype - is the datatype ...
Syntax CREATETABLEnew_table_nameAS SELECTcolumn1, column2,... FROMexisting_table_name WHERE...; The following SQL creates a new table called "TestTable" (which is a copy of the "Customers" table): Example CREATETABLETestTableAS SELECT...
Syntax SQLSyntax ❮ PreviousNext ❯ SQL Statements Most of the actions you need to perform on a database are done with SQL statements. SQL statements consist of keywords that are easy to understand. The following SQL statement returns all records from a table named "Customers":...
Syntax for CREATE TABLE CREATE TABLEtable-name(,column-definitionperiod-definitionunique-constraintreferential-constraintcheck-constraint)LIKEtable-nameview-namecopy-optionsas-result-tablecopy-optionsmaterialized-query-definition1INdatabase-name. table-space-nameIN DATABASEdatabase-nameIN ACCELERATORaccelerator...
Use the XMLType_table syntax to create a table of datatype XMLType.Object tables (as well as XMLType tables, object views, and XMLType views) do not have any column names specified for them. Therefore, Oracle defines a system-generated column SYS_NC_ROWINFO$. You can use this column ...
Syntax Create_Managed_Table_As_Query_Statement := 'CREATE' 'TABLE' ['IF' 'NOT' 'EXISTS']IdentifierTable_As_Query. Table_As_Query := ( '('Table_IndexHorizontal_Partition_Specification')' | '('Table_Index')'Horizontal_Partition_Specification) 'AS'Query_Expression ...
Transact-SQL Syntax ConventionsSyntax Copy CREATE TABLE [ database_name . [ schema_name ] . | schema_name . ] table_name ( { <column_definition> | <computed_column_definition> | <column_set_definition> | [ <table_constraint> ] [ ,...n ] } ) [ ON { partition_scheme_name (parti...