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  • SQL syntax - Wikipedia
    SQL syntax The syntax of the SQL programming language is defined and maintained by ISO IEC SC 32 as part of ISO IEC 9075 This standard is not freely available Despite the existence of the standard, SQL code is not completely portable among different database systems without adjustments
  • SQL - Wikipedia
    Structured Query Language (SQL) (pronounced ˌɛsˌkjuˈɛl S-Q-L; or alternatively as ˈsiːkwəl ⓘ "sequel") [4][5] is a domain-specific language used to manage data, especially in a relational database management system (RDBMS) It is particularly useful in handling structured data, i e , data incorporating relations among entities and variables Introduced in the 1970s, SQL
  • Join (SQL) - Wikipedia
    A Venn diagram representing the full join SQL statement between tables A and B A join clause in the Structured Query Language (SQL) combines columns from one or more tables into a new table The operation corresponds to a join operation in relational algebra Informally, a join stitches two tables and puts on the same row records with matching fields There are several variants of JOIN: INNER
  • W3Schools - Wikipedia
    W3Schools is a freemium educational website for learning coding online [1][2] Initially released in 1998, it derives its name from the World Wide Web but is not affiliated with the W3 Consortium [3][4][unreliable source] W3Schools offers courses covering many aspects of web development [5]
  • Select (SQL) - Wikipedia
    Select (SQL) The SQL SELECT statement returns a result set of rows, from one or more tables [1][2] A SELECT statement retrieves zero or more rows from one or more database tables or database views In most applications, SELECT is the most commonly used data manipulation language (DML) command
  • Delete (SQL) - Wikipedia
    In the database structured query language (SQL), the DELETE statement is used to remove one or more records from a table A subset may be defined for deletion using a condition, otherwise all records are removed [1] Some database management systems (DBMSs), like MySQL, allow deletion of rows from multiple tables with one DELETE statement (this is sometimes called multi-table DELETE)
  • MySQL - Wikipedia
    MySQL ( ˌmaɪˌɛsˌkjuːˈɛl ) [6] is an open-source relational database management system (RDBMS) [6][7] Its name is a combination of "My", the name of co-founder Michael Widenius 's daughter My, [1] and "SQL", the acronym for Structured Query Language A relational database organizes data into one or more data tables in which data may be related to each other; these relations help





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