SQL is designed for managing or stream processing data in an RDBMS. This package provides a set of functions to generate SQL commands for creating tables, inserting data, and performing various operations, including text search and matching, on SQL databases (currently PostgreSQL).

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import * as xsql from 'extra-sql';

xsql.tableExists('food');
// → SELECT EXISTS (SELECT 1 FROM information_schema.tables WHERE table_name='food');

xsql.setupTable('food', {code: 'TEXT', name: 'TEXT'},
  [{code: 'F1', name: 'Mango'}, {code: 'F2', name: 'Lychee'}]);
// → CREATE TABLE IF NOT EXISTS "food" ("code" TEXT, "name" TEXT);
// → INSERT INTO "food" ("code", "name") VALUES
// → ($$F1$$, $$Mango$$),
// → ($$F2$$, $$Lychee$$);


xsql.selectTsquery('columns', 'total fat');
// → SELECT * FROM "columns" WHERE "tsvector" @@ plainto_tsquery('total fat');

xsql.matchTsquery('columns', ['total', 'fat']);
// → SELECT *, '2'::INT AS "matchTsquery" FROM "columns" WHERE "tsvector" @@ plainto_tsquery('total fat') UNION ALL
// → SELECT *, '1'::INT AS "matchTsquery" FROM "columns" WHERE "tsvector" @@ plainto_tsquery('total');

Index

Property	Description
createTable	Generate SQL command for CREATE TABLE.
createIndex	Generate SQL command for CREATE INDEX.
createView	Generate SQL command for CREATE VIEW.
insertInto	Generates SQL command for INSERT INTO using an array of values.
setupTable	Generate SQL commands to set up a table (create, insert, index).
tableExists	Generate SQL command to check if a table exists.
selectTsquery	Generate SQL command for SELECT with tsquery.
matchTsquery	Generate SQL query for matching words with tsquery.
insertIntoStream	Generate SQL command for INSERT INTO using a stream of values.
setupTableIndex	Generate SQL commands for setting up table indexes and views.
createTableData	Generate SQL command for creating a table with data.
updateData	Generate SQL command for updating data.
selectData	Generate SQL command for selecting data.
insertIntoData	Generate SQL command for inserting data.
deleteData	Generate SQL command for deleting data.
OPERATORS	Set of operators in SQL. {field}
OPERAND_COUNT	Number of operands used with an SQL operator. {field}