Updating sql database from an array

If you omit the WHERE clause, every row in the table is updated with the same value.

If you want to use an object property in an expression, you need to specify a memory variable and then use that variable in the expression.

JSON fields that do not appear in the target row type will be omitted from the output, and target columns that do not match any JSON field will simply be CREATE TABLE inputtable (col1 text, col2 integer, col3 integer, col4 text); SELECT * FROM jsonb_populate_recordset(NULL::yourtable, '[ , , , ]'::jsonb); col1 │ col2 │ col3 │ col4 ──────┼──────┼──────┼─────── a │ 1 │ 1 │ one b │ 2 │ 2 │ two c │ 3 │ 3 │ three d │ 4 │ 4 │ four CREATE OR REPLACE FUNCTION UPDATE_TABLE_FUNC ( array Of Values TEXT[] ) RETURN VOID AS $$ BEGIN WITH source AS (SELECT * FROM jsonb_populate_recordset jsonb_populate_recordset(NULL::my Table,

If you omit the WHERE clause, every row in the table is updated with the same value.If you want to use an object property in an expression, you need to specify a memory variable and then use that variable in the expression.JSON fields that do not appear in the target row type will be omitted from the output, and target columns that do not match any JSON field will simply be CREATE TABLE inputtable (col1 text, col2 integer, col3 integer, col4 text); SELECT * FROM jsonb_populate_recordset(NULL::yourtable, '[ , , , ]'::jsonb); col1 │ col2 │ col3 │ col4 ──────┼──────┼──────┼─────── a │ 1 │ 1 │ one b │ 2 │ 2 │ two c │ 3 │ 3 │ three d │ 4 │ 4 │ four CREATE OR REPLACE FUNCTION UPDATE_TABLE_FUNC ( array Of Values TEXT[] ) RETURN VOID AS $$ BEGIN WITH source AS (SELECT * FROM jsonb_populate_recordset jsonb_populate_recordset(NULL::my Table, $1); UPDATE my Table SET (col1, col2, col3, col4) = (s.col1, s.col2, s.col3, s.col4) FROM source AS s END; $$ LANGUAGE plpgsql; I just wanted to check and make sure the format was right.I got a syntax error: ERROR: syntax error at or near "NULL" using the above function. I also noticed I left off an S in my RETURN statement, but with that fixed, I get the error.I want each object in the array to coorespond to a new row, with each key cooresponding to a column, and each value is the data to be inserted into the column. Here the the data format: col1 (varchar)| col2 (integer) | col3 (integer) | col4 (varchar) ----------------- ---------------- -------------------- ------------------ a | 5 | 1 | one b | 6 | 2 | two c | 7 | 3 | three d | 8 | 4 | four SELECT * FROM jsonb_to_recordset('[ , , , ]'::jsonb) AS t (col1 text, col2 integer, col3 integer, col4 text); col1 │ col2 │ col3 │ col4 ──────┼──────┼──────┼─────── a │ 1 │ 1 │ one b │ 2 │ 2 │ two c │ 3 │ 3 │ three d │ 4 │ 4 │ four , type coercion from the JSON is "best effort" and may not result in desired values for some types.JSON keys are matched to identical column names in the target row type.For syntax and information about subqueries, see If you use a subquery in the SET clause, you cannot use subqueries in the WHERE clause.

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If you omit the WHERE clause, every row in the table is updated with the same value.

If you want to use an object property in an expression, you need to specify a memory variable and then use that variable in the expression.

JSON fields that do not appear in the target row type will be omitted from the output, and target columns that do not match any JSON field will simply be CREATE TABLE inputtable (col1 text, col2 integer, col3 integer, col4 text); SELECT * FROM jsonb_populate_recordset(NULL::yourtable, '[ , , , ]'::jsonb); col1 │ col2 │ col3 │ col4 ──────┼──────┼──────┼─────── a │ 1 │ 1 │ one b │ 2 │ 2 │ two c │ 3 │ 3 │ three d │ 4 │ 4 │ four CREATE OR REPLACE FUNCTION UPDATE_TABLE_FUNC ( array Of Values TEXT[] ) RETURN VOID AS $$ BEGIN WITH source AS (SELECT * FROM jsonb_populate_recordset jsonb_populate_recordset(NULL::my Table, $1); UPDATE my Table SET (col1, col2, col3, col4) = (s.col1, s.col2, s.col3, s.col4) FROM source AS s END; $$ LANGUAGE plpgsql; I just wanted to check and make sure the format was right.

I got a syntax error: ERROR: syntax error at or near "NULL" using the above function. I also noticed I left off an S in my RETURN statement, but with that fixed, I get the error.

); UPDATE my Table SET (col1, col2, col3, col4) = (s.col1, s.col2, s.col3, s.col4) FROM source AS s END; $$ LANGUAGE plpgsql; I just wanted to check and make sure the format was right.

I got a syntax error: ERROR: syntax error at or near "NULL" using the above function. I also noticed I left off an S in my RETURN statement, but with that fixed, I get the error.

how do I define that the updated record should only be autonumber = x thanks for helping me understand this a bit more. I don't think it is very server-friendly to nail the server 16 times for each of these updates. Open Connection String end sub call Open Data Con() sub openrs(rs Rec, strsource) With rs Rec . The recordset shows the updates, but for some rason the rsedit.

is incorrect; that last statement is always going to be adding 0 since that's the value you just assigned to $total Units Ordered in the preceding statement.

For that section to make sense, I believe you'll want to reverse the order of those two statements.

You can include one subquery in the SET clause to specify an expression.

If the subquery does not return any results, it returns NULL.

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